3 The ChangeLog file is no longer maintained on bleeding_edge. This
4 sentinel should stay on top of this list.
7 2015-05-17: Version 4.5.2
9 Performance and stability improvements on all platforms.
12 2015-05-16: Version 4.5.1
14 Test that TypedArray methods don't read length (issue 3578).
16 Implement %TypedArray%.{fill,find,findIndex} (issue 3578).
18 TypedArray.prototype.copyWithin method (issue 3578).
20 Provide accessor for object internal properties that doesn't require
21 debugger to be active (Chromium issue 481845).
23 Don't create debug context if debug listener is not set (Chromium issue
26 Performance and stability improvements on all platforms.
29 2015-05-13: Version 4.4.65
31 Deprecate Isolate::New.
33 Factor out core of Array.forEach and .every, for use in TypedArrays
36 Performance and stability improvements on all platforms.
39 2015-05-12: Version 4.4.64
41 Performance and stability improvements on all platforms.
44 2015-05-11: Version 4.4.63
46 Let Runtime_GrowArrayElements accept non-Smi numbers as |key| (Chromium
49 Make one copy for all TypedArray methods (issue 4085).
51 Performance and stability improvements on all platforms.
54 2015-05-09: Version 4.4.62
56 [turbofan] Fix handling of OsrLoopEntry in ControlReducer::ConnectNTL()
57 (Chromium issue 485908).
59 Performance and stability improvements on all platforms.
62 2015-05-08: Version 4.4.61
64 Performance and stability improvements on all platforms.
67 2015-05-08: Version 4.4.60
69 Performance and stability improvements on all platforms.
72 2015-05-08: Version 4.4.59
74 Performance and stability improvements on all platforms.
77 2015-05-07: Version 4.4.58
79 TypedArray.prototype.every method (issue 3578).
81 [V8] Reland https://codereview.chromium.org/1121833003/ (Chromium issue
84 Performance and stability improvements on all platforms.
87 2015-05-07: Version 4.4.57
89 Performance and stability improvements on all platforms.
92 2015-05-06: Version 4.4.56
94 Shard v8_base.lib on Windows to avoid 2G .lib limit (Chromium issue
97 Implement a 'trial parse' step, that will abort pre-parsing excessively
98 long and trivial functions, so that they can be eagerly compiled after
99 all. This essentially allows the parser to renege on its earlier
100 decision to lazy-parse, if additional information suggests it was a bad
101 decision (Chromium issue 470930).
103 Performance and stability improvements on all platforms.
106 2015-05-06: Version 4.4.55
108 Handle the case when derived constructor is [[Call]]ed with 0 args
109 (Chromium issue 474783).
111 freed_nodes in global-handles should be addititive (Chromium issues
114 [V8] Reland https://codereview.chromium.org/1100993003/ (Chromium issue
117 [es6] When comparing two symbols we may need to throw a TypeError (issue
120 Performance and stability improvements on all platforms.
123 2015-05-06: Version 4.4.54
125 Performance and stability improvements on all platforms.
128 2015-05-05: Version 4.4.53
130 Performance and stability improvements on all platforms.
133 2015-05-05: Version 4.4.52
135 Performance and stability improvements on all platforms.
138 2015-05-04: Version 4.4.51
140 Performance and stability improvements on all platforms.
143 2015-05-04: Version 4.4.50
145 Performance and stability improvements on all platforms.
148 2015-05-01: Version 4.4.49
150 Performance and stability improvements on all platforms.
153 2015-05-01: Version 4.4.48
155 [V8] Use previous token location as EOS token location (Chromium issue
158 Implement kToBeExecutedOnceCodeAge (Chromium issue 470930).
160 Performance and stability improvements on all platforms.
163 2015-04-30: Version 4.4.47
165 Performance and stability improvements on all platforms.
168 2015-04-30: Version 4.4.46
170 Performance and stability improvements on all platforms.
173 2015-04-29: Version 4.4.45
175 Performance and stability improvements on all platforms.
178 2015-04-29: Version 4.4.44
180 Pass ArrayBuffer::Allocator via Isolate::CreateParams.
182 Fix unobservable constructor replacement on prototype maps (Chromium
185 Performance and stability improvements on all platforms.
188 2015-04-29: Version 4.4.43
190 Performance and stability improvements on all platforms.
193 2015-04-28: Version 4.4.42
195 MIPS: Fix FP load/store with large offsets from base register (Chromium
198 Extending v8::GetHeapStatistics to return total available size (Chromium
201 Performance and stability improvements on all platforms.
204 2015-04-28: Version 4.4.41
206 Performance and stability improvements on all platforms.
209 2015-04-28: Version 4.4.40
211 Do more to avoid last-resort stop-the-world GC (Chromium issue 481433).
213 Performance and stability improvements on all platforms.
216 2015-04-27: Version 4.4.39
218 Performance and stability improvements on all platforms.
221 2015-04-27: Version 4.4.38
223 Performance and stability improvements on all platforms.
226 2015-04-25: Version 4.4.37
228 Performance and stability improvements on all platforms.
231 2015-04-24: Version 4.4.36
233 Performance and stability improvements on all platforms.
236 2015-04-24: Version 4.4.35
238 Performance and stability improvements on all platforms.
241 2015-04-24: Version 4.4.34
243 Performance and stability improvements on all platforms.
246 2015-04-23: Version 4.4.33
248 Performance and stability improvements on all platforms.
251 2015-04-23: Version 4.4.32
253 Performance and stability improvements on all platforms.
256 2015-04-23: Version 4.4.31
258 Performance and stability improvements on all platforms.
261 2015-04-22: Version 4.4.30
263 Performance and stability improvements on all platforms.
266 2015-04-22: Version 4.4.29
268 Performance and stability improvements on all platforms.
271 2015-04-21: Version 4.4.28
273 Performance and stability improvements on all platforms.
276 2015-04-21: Version 4.4.27
278 Performance and stability improvements on all platforms.
281 2015-04-20: Version 4.4.26
283 Allow for accessing an ArrayBuffer contents without externalizing it.
285 Remove support for externally backed elements from the API (issue 3996).
287 Deprecate 3-args ResourceConstraints::ConfigureDefaults.
289 Indicate that low-memory-notificatin triggered GCs are "forced".
291 Adding missing V8_EXPORT flag in SpaceStatistics class in v8.h (Chromium
292 issues 466141, 476013).
294 Performance and stability improvements on all platforms.
297 2015-04-20: Version 4.4.25
299 Turn off SupportsFlexibleFloorAndRound for Arm64 due to a bug (Chromium
302 Adding V8 api to get memory statistics of spaces in V8::Heap (Chromium
303 issues 466141, 476013).
305 Performance and stability improvements on all platforms.
308 2015-04-17: Version 4.4.24
310 Performance and stability improvements on all platforms.
313 2015-04-17: Version 4.4.23
315 Don't crash when reporting an access check failure for a detached global
316 proxy (Chromium issue 475884).
318 Use smaller heap growing factor in idle notification to start
319 incremental marking when there is idle time >16ms (Chromium issue
322 Performance and stability improvements on all platforms.
325 2015-04-16: Version 4.4.22
327 Reduce regexp compiler stack size when not optimizing regexps (Chromium
330 Performance and stability improvements on all platforms.
333 2015-04-15: Version 4.4.21
335 Remove support for specifying the number of available threads.
337 When converting Maybe and MaybeLocal values with a check, always check.
339 Performance and stability improvements on all platforms.
342 2015-04-15: Version 4.4.20
344 Performance and stability improvements on all platforms.
347 2015-04-15: Version 4.4.19
349 Reland "Remove support for thread-based recompilation" (issue 3608).
351 Performance and stability improvements on all platforms.
354 2015-04-14: Version 4.4.18
356 Reland "Remove support for thread-based recompilation" (issue 3608).
358 Performance and stability improvements on all platforms.
361 2015-04-14: Version 4.4.17
363 Performance and stability improvements on all platforms.
366 2015-04-13: Version 4.4.16
368 Expose ArrayBufferView::HasBuffer (issue 3996).
370 Performance and stability improvements on all platforms.
373 2015-04-13: Version 4.4.15
375 Performance and stability improvements on all platforms.
378 2015-04-12: Version 4.4.14
380 Performance and stability improvements on all platforms.
383 2015-04-12: Version 4.4.13
385 Performance and stability improvements on all platforms.
388 2015-04-10: Version 4.4.12
390 Performance and stability improvements on all platforms.
393 2015-04-10: Version 4.4.11
395 Performance and stability improvements on all platforms.
398 2015-04-10: Version 4.4.10
400 Don't #define snprintf in VS2015 - it's illegal and unneeded (Chromium
403 Performance and stability improvements on all platforms.
406 2015-04-09: Version 4.4.9
408 Performance and stability improvements on all platforms.
411 2015-04-09: Version 4.4.8
413 Performance and stability improvements on all platforms.
416 2015-04-08: Version 4.4.7
418 Make GetDebugContext a bit more robust (Chromium issue 474538).
420 Performance and stability improvements on all platforms.
423 2015-04-08: Version 4.4.6
425 Performance and stability improvements on all platforms.
428 2015-04-08: Version 4.4.5
430 More robust when allocation fails during compaction (Chromium issue
433 MIPS: JSEntryTrampoline: check for stack space before pushing arguments
434 (Chromium issue 469768).
436 Performance and stability improvements on all platforms.
439 2015-04-07: Version 4.4.4
441 Debugger: remove debug command API.
443 Remove support for thread-based recompilation (issue 3608).
445 JSEntryTrampoline: check for stack space before pushing arguments
446 (Chromium issue 469768).
448 Performance and stability improvements on all platforms.
451 2015-04-07: Version 4.4.3
453 Performance and stability improvements on all platforms.
456 2015-04-06: Version 4.4.2
458 Performance and stability improvements on all platforms.
461 2015-04-06: Version 4.4.1
463 Support for typed arrays added to Heap::RightTrimFixedArray() (Chromium
466 Expose an API on ArrayBufferView to copy out content w/o changing the
469 Performance and stability improvements on all platforms.
472 2015-04-02: Version 4.3.66
474 Reland: Fix JSON parser Handle leak (previous CL 1041483004) (issue
475 3976, Chromium issue 472504).
477 Turn off overapproximation of the weak closure again (issue 3862).
479 Performance and stability improvements on all platforms.
482 2015-04-01: Version 4.3.65
484 Performance and stability improvements on all platforms.
487 2015-04-01: Version 4.3.64
489 Performance and stability improvements on all platforms.
492 2015-04-01: Version 4.3.63
494 [V8] Don't ignore sourceURL comment in inline scripts in .stack (issue
497 Deprecate IdleNotification().
499 Remove --harmony-numeric-literal flag.
501 Performance and stability improvements on all platforms.
504 2015-03-31: Version 4.3.62
506 Put newspace evacuation in an EvacuationScope (Chromium issue 471554).
508 Fix libdl dependency on Android and remove librt hack (Chromium issue
511 Ensure that GC idle notifications either make progress or stop
512 requesting more GCs (Chromium issue 470615).
514 Layout descriptor must be trimmed when corresponding descriptors array
515 is trimmed to stay in sync (Chromium issue 470804).
517 Fix JSON parser Handle leak (issue 3976).
519 Performance and stability improvements on all platforms.
522 2015-03-30: Version 4.3.61
524 Performance and stability improvements on all platforms.
527 2015-03-28: Version 4.3.60
529 Reland^2 "Filter invalid slots out from the SlotsBuffer after marking."
530 (Chromium issues 454297, 470801).
532 This fixes missing incremental write barrier issue when double fields
533 unboxing is enabled (Chromium issue 469146).
535 Performance and stability improvements on all platforms.
538 2015-03-27: Version 4.3.59
540 Use a slot that is located on a heap page when removing invalid entries
541 from the SlotsBuffer (Chromium issue 470801).
543 Performance and stability improvements on all platforms.
546 2015-03-26: Version 4.3.58
548 Return timestamp of the last recorded interval to the caller of
549 HeapProfiler::GetHeapStats (Chromium issue 467222).
551 Performance and stability improvements on all platforms.
554 2015-03-26: Version 4.3.57
556 Reland [V8] Removed SourceLocationRestrict (Chromium issue 468781).
558 Performance and stability improvements on all platforms.
561 2015-03-25: Version 4.3.56
563 Remove v8::Isolate::ClearInterrupt.
565 Performance and stability improvements on all platforms.
568 2015-03-25: Version 4.3.55
570 Performance and stability improvements on all platforms.
573 2015-03-24: Version 4.3.54
575 Do not assign positions to parser-generated desugarings (Chromium issue
578 Performance and stability improvements on all platforms.
581 2015-03-24: Version 4.3.53
583 Filter invalid slots out from the SlotsBuffer after marking (Chromium
586 Fix OOM bug 3976 (issue 3976).
588 Performance and stability improvements on all platforms.
591 2015-03-24: Version 4.3.52
593 Remove calls to IdleNotification().
595 Save heap object tracking data in heap snapshot (Chromium issue 467222).
597 Performance and stability improvements on all platforms.
600 2015-03-24: Version 4.3.51
602 [V8] Removed SourceLocationRestrict (Chromium issue 468781).
604 [turbofan] Fix control reducer bug with walking non-control edges during
605 ConnectNTL phase (Chromium issue 469605).
607 Performance and stability improvements on all platforms.
610 2015-03-23: Version 4.3.50
612 Performance and stability improvements on all platforms.
615 2015-03-23: Version 4.3.49
617 Ensure we don't overflow in BCE (Chromium issue 469148).
619 [turbofan] Fix lowering of Math.max for integral inputs (Chromium issue
622 Use libdl to get symbols for backtraces.
624 Performance and stability improvements on all platforms.
627 2015-03-19: Version 4.3.48
629 Clarify what APIs return Maybe and MaybeLocal values (issue 3929).
631 Introduce explicit constant for per Context debug data set by embedder
632 (Chromium issue 466631).
634 Adjust key behaviour for weak collections (issues 3970, 3971, Chromium
637 Turn on overapproximation of the weak closure (issue 3862).
639 Performance and stability improvements on all platforms.
642 2015-03-18: Version 4.3.47
644 Performance and stability improvements on all platforms.
647 2015-03-17: Version 4.3.46
649 Performance and stability improvements on all platforms.
652 2015-03-17: Version 4.3.45
654 Performance and stability improvements on all platforms.
657 2015-03-17: Version 4.3.44
659 Performance and stability improvements on all platforms.
662 2015-03-16: Version 4.3.43
664 Bugfix in hydrogen GVN (Chromium issue 467481).
666 Remove obsolete TakeHeapSnapshot method from API (Chromium issue
669 Beautify syntax error for unterminated argument list (Chromium issue
672 Performance and stability improvements on all platforms.
675 2015-03-16: Version 4.3.42
677 Performance and stability improvements on all platforms.
680 2015-03-15: Version 4.3.41
682 Performance and stability improvements on all platforms.
685 2015-03-14: Version 4.3.40
687 Performance and stability improvements on all platforms.
690 2015-03-14: Version 4.3.39
692 Performance and stability improvements on all platforms.
695 2015-03-14: Version 4.3.38
697 Remove --harmony-scoping flag.
699 Performance and stability improvements on all platforms.
702 2015-03-13: Version 4.3.37
704 Implement TDZ in StoreIC for top-level lexicals (issue 3941).
706 Turn on job-based optimizing compiler (issue 3608).
708 Performance and stability improvements on all platforms.
711 2015-03-13: Version 4.3.36
713 Performance and stability improvements on all platforms.
716 2015-03-12: Version 4.3.35
718 Add Cast() for Int32 and Uint32 (Chromium issue 462402).
720 Incorrect handling of HTransitionElementsKind in hydrogen check
721 elimination phase fixed (Chromium issue 460917).
723 Performance and stability improvements on all platforms.
726 2015-03-12: Version 4.3.34
728 Performance and stability improvements on all platforms.
731 2015-03-12: Version 4.3.33
733 Fix the toolchain used to build the snapshots in GN (Chromium issues
736 Performance and stability improvements on all platforms.
739 2015-03-11: Version 4.3.32
741 Reland of Remove slots that point to unboxed doubles from the
742 StoreBuffer/SlotsBuffer (Chromium issues 454297, 465273).
744 Performance and stability improvements on all platforms.
747 2015-03-11: Version 4.3.31
749 Performance and stability improvements on all platforms.
752 2015-03-11: Version 4.3.30
754 Remove uid and title from HeapSnapshot (Chromium issue 465651).
756 Remove deprecated CpuProfiler methods.
758 [turbofan] Fix --turbo-osr for OSRing into inner loop inside for-in
759 (Chromium issue 462775).
761 Performance and stability improvements on all platforms.
764 2015-03-10: Version 4.3.29
766 Performance and stability improvements on all platforms.
769 2015-03-10: Version 4.3.28
771 Performance and stability improvements on all platforms.
774 2015-03-10: Version 4.3.27
776 Performance and stability improvements on all platforms.
779 2015-03-07: Version 4.3.26
781 Remove slots that point to unboxed doubles from the
782 StoreBuffer/SlotsBuffer (Chromium issue 454297).
784 Performance and stability improvements on all platforms.
787 2015-03-06: Version 4.3.25
789 Performance and stability improvements on all platforms.
792 2015-03-06: Version 4.3.24
794 convert more things to maybe (issue 3929).
796 Performance and stability improvements on all platforms.
799 2015-03-05: Version 4.3.23
801 [V8] Use Function.name for stack frames in v8::StackTrace (Chromium
804 Allow passing sourceMapUrl when compiling scripts (Chromium issue
807 convert compile functions to use maybe (issue 3929).
809 Performance and stability improvements on all platforms.
812 2015-03-05: Version 4.3.22
814 give UniquePersistent full move semantics (issue 3669).
816 Performance and stability improvements on all platforms.
819 2015-03-05: Version 4.3.21
821 Performance and stability improvements on all platforms.
824 2015-03-04: Version 4.3.20
826 convert remaining object functions to maybes (issue 3929).
828 Performance and stability improvements on all platforms.
831 2015-03-04: Version 4.3.19
833 ARM assembler: fix undefined behaviour in fits_shifter (Chromium issues
836 Implement subclassing Arrays (issue 3930).
838 [es6] Fix for-const loops (issue 3983).
840 Performance and stability improvements on all platforms.
843 2015-03-04: Version 4.3.18
845 Implement subclassing Arrays (issue 3930).
847 Performance and stability improvements on all platforms.
850 2015-03-04: Version 4.3.17
852 Implement subclassing Arrays (issue 3930).
854 convert more object functions to return maybes (issue 3929).
856 Performance and stability improvements on all platforms.
859 2015-03-03: Version 4.3.16
861 check for null context on execution entry (issue 3929).
863 convert object::* to return maybe values (issue 3929).
865 Removed funky Maybe constructor and made fields private (issue 3929).
867 Polish Maybe API a bit, removing useless creativity and fixing some
868 signatures (issue 3929).
870 Performance and stability improvements on all platforms.
873 2015-03-02: Version 4.3.15
875 Performance and stability improvements on all platforms.
878 2015-03-02: Version 4.3.14
880 Performance and stability improvements on all platforms.
883 2015-02-28: Version 4.3.13
885 Disallow subclassing Arrays (issue 3930).
887 Performance and stability improvements on all platforms.
890 2015-02-28: Version 4.3.12
892 Performance and stability improvements on all platforms.
895 2015-02-27: Version 4.3.11
897 Disallow subclassing Arrays (issue 3930).
899 convert Value::*Value() function to return Maybe results (issue 3929).
901 Performance and stability improvements on all platforms.
904 2015-02-27: Version 4.3.10
906 Convert v8::Value::To* to use MaybeLocal (issue 3929).
908 Performance and stability improvements on all platforms.
911 2015-02-26: Version 4.3.9
913 Add public version macros (issue 3075).
915 Performance and stability improvements on all platforms.
918 2015-02-26: Version 4.3.8
920 Performance and stability improvements on all platforms.
923 2015-02-25: Version 4.3.7
925 Performance and stability improvements on all platforms.
928 2015-02-25: Version 4.3.6
930 Performance and stability improvements on all platforms.
933 2015-02-25: Version 4.3.5
935 Turn on job based recompilation (issue 3608).
937 Performance and stability improvements on all platforms.
940 2015-02-24: Version 4.3.4
942 Reland "Correctly propagate terminate exception in TryCall." (issue
945 Performance and stability improvements on all platforms.
948 2015-02-24: Version 4.3.3
950 Performance and stability improvements on all platforms.
953 2015-02-24: Version 4.3.2
955 Update GN build files with the cpu_arch -> current_cpu change.
957 Performance and stability improvements on all platforms.
960 2015-02-23: Version 4.3.1
962 Limit size of first page based on serialized data (Chromium issue
965 Performance and stability improvements on all platforms.
968 2015-02-19: Version 4.2.77
970 Make generator constructors configurable (issue 3902).
972 Performance and stability improvements on all platforms.
975 2015-02-19: Version 4.2.76
977 Performance and stability improvements on all platforms.
980 2015-02-18: Version 4.2.75
982 Performance and stability improvements on all platforms.
985 2015-02-18: Version 4.2.74
987 Correctly propagate terminate exception in TryCall (issue 3892).
989 Performance and stability improvements on all platforms.
992 2015-02-17: Version 4.2.73
994 Performance and stability improvements on all platforms.
997 2015-02-17: Version 4.2.72
999 [turbofan] Fix control reducer with re-reducing branches (Chromium issue
1002 Performance and stability improvements on all platforms.
1005 2015-02-16: Version 4.2.71
1007 Implement ES6 rest parameters (issue 2159).
1009 Performance and stability improvements on all platforms.
1012 2015-02-13: Version 4.2.70
1014 new classes: no longer experimental (issue 3834).
1016 Make it possible to define arguments for CompileFunctionInContext.
1018 Performance and stability improvements on all platforms.
1021 2015-02-12: Version 4.2.69
1023 Performance and stability improvements on all platforms.
1026 2015-02-11: Version 4.2.68
1028 Performance and stability improvements on all platforms.
1031 2015-02-11: Version 4.2.67
1033 Throw on range error when creating a string via API (issue 3853).
1035 Performance and stability improvements on all platforms.
1038 2015-02-11: Version 4.2.66
1040 Performance and stability improvements on all platforms.
1043 2015-02-10: Version 4.2.65
1045 Performance and stability improvements on all platforms.
1048 2015-02-10: Version 4.2.64
1050 Performance and stability improvements on all platforms.
1053 2015-02-10: Version 4.2.63
1055 Introduce a compile method that takes context extensions (Chromium issue
1058 Performance and stability improvements on all platforms.
1061 2015-02-09: Version 4.2.62
1063 Performance and stability improvements on all platforms.
1066 2015-02-09: Version 4.2.61
1068 Performance and stability improvements on all platforms.
1071 2015-02-07: Version 4.2.60
1073 Performance and stability improvements on all platforms.
1076 2015-02-07: Version 4.2.59
1078 Performance and stability improvements on all platforms.
1081 2015-02-07: Version 4.2.58
1083 Performance and stability improvements on all platforms.
1086 2015-02-06: Version 4.2.57
1088 Performance and stability improvements on all platforms.
1091 2015-02-06: Version 4.2.56
1093 Performance and stability improvements on all platforms.
1096 2015-02-06: Version 4.2.55
1098 Protect against uninitialized lexical variables at top-level (Chromium
1101 Performance and stability improvements on all platforms.
1104 2015-02-05: Version 4.2.54
1106 Fix HConstant(double, ...) constructor (issue 3865).
1108 Add NativeWeakMap to v8.h (Chromium issue 437416).
1110 Performance and stability improvements on all platforms.
1113 2015-02-05: Version 4.2.53
1115 Fix issue with multiple properties and emit store (issue 3856).
1117 Class methods should be non enumerable (issue 3330).
1119 Performance and stability improvements on all platforms.
1122 2015-02-04: Version 4.2.52
1124 Add WeakKeyMap to v8.h (Chromium issue 437416).
1126 Performance and stability improvements on all platforms.
1129 2015-02-04: Version 4.2.51
1131 Performance and stability improvements on all platforms.
1134 2015-02-03: Version 4.2.50
1136 Reset inlining limits due to overly long compilation times in
1137 Speedometer, Dart2JS (Chromium issue 454625).
1139 Add WeakMap to v8.h (Chromium issue 437416).
1141 [V8] Added line, column and script symbols for SyntaxError (Chromium
1144 Performance and stability improvements on all platforms.
1147 2015-02-03: Version 4.2.49
1149 Compute the same hash for all NaN values (issue 3859).
1151 Performance and stability improvements on all platforms.
1154 2015-02-03: Version 4.2.48
1156 Performance and stability improvements on all platforms.
1159 2015-02-02: Version 4.2.47
1161 Check global object behind global proxy for extensibility (Chromium
1164 Performance and stability improvements on all platforms.
1167 2015-02-02: Version 4.2.46
1169 Performance and stability improvements on all platforms.
1172 2015-02-02: Version 4.2.45
1174 Performance and stability improvements on all platforms.
1177 2015-02-01: Version 4.2.44
1179 Performance and stability improvements on all platforms.
1182 2015-02-01: Version 4.2.43
1184 Performance and stability improvements on all platforms.
1187 2015-01-31: Version 4.2.42
1189 Performance and stability improvements on all platforms.
1192 2015-01-31: Version 4.2.41
1194 Layout descriptor sharing issue fixed (issue 3832, Chromium issue
1197 Performance and stability improvements on all platforms.
1200 2015-01-30: Version 4.2.40
1202 Performance and stability improvements on all platforms.
1205 2015-01-30: Version 4.2.38
1207 Move object literal checking into checker classes (issue 3819).
1209 [turbofan] Fix OSR compilations of for-in.
1211 Performance and stability improvements on all platforms.
1214 2015-01-30: Version 4.2.37
1216 Do not create unresolved variables when parsing arrow functions lazily
1219 Performance and stability improvements on all platforms.
1222 2015-01-29: Version 4.2.36
1224 Performance and stability improvements on all platforms.
1227 2015-01-29: Version 4.2.35
1229 Performance and stability improvements on all platforms.
1232 2015-01-28: Version 4.2.34
1234 Performance and stability improvements on all platforms.
1237 2015-01-28: Version 4.2.33
1239 Performance and stability improvements on all platforms.
1242 2015-01-27: Version 4.2.32
1244 Do not generalize field representations when making elements kind or
1245 observed transition (Chromium issue 448711).
1247 Performance and stability improvements on all platforms.
1250 2015-01-27: Version 4.2.31
1252 [x86] Disable AVX unless the operating system explicitly claims to
1253 support it (issue 3846, Chromium issue 452033).
1255 Performance and stability improvements on all platforms.
1258 2015-01-27: Version 4.2.30
1260 Performance and stability improvements on all platforms.
1263 2015-01-26: Version 4.2.29
1265 MIPS: Fixed Hydrogen environment handling for mul-i ARM and ARM64 (issue
1268 [turbofan] Simplify reduction if IfTrue and IfFalse and fix bugs
1269 (Chromium issue 451958).
1271 Add HeapNumber fast path to v8::Value::{Uint,Int}32Value() (Chromium
1274 Performance and stability improvements on all platforms.
1277 2015-01-26: Version 4.2.28
1279 Fixed Hydrogen environment handling for mul-i on ARM and ARM64 (issue
1282 Performance and stability improvements on all platforms.
1285 2015-01-25: Version 4.2.27
1287 Performance and stability improvements on all platforms.
1290 2015-01-24: Version 4.2.26
1292 ES6 Array.prototype.toString falls back on Object.prototype.toString if
1293 method "join" is not callable (issue 3793).
1295 Performance and stability improvements on all platforms.
1298 2015-01-23: Version 4.2.25
1300 Performance and stability improvements on all platforms.
1303 2015-01-23: Version 4.2.24
1305 Performance and stability improvements on all platforms.
1308 2015-01-23: Version 4.2.23
1310 [x86] Blacklist AVX for Windows versions before 6.1 (Windows 7) (issue
1313 Performance and stability improvements on all platforms.
1316 2015-01-23: Version 4.2.22
1318 Fix run-time ARMv6 detection (issue 3844).
1320 Support concatenating with zero-size arrays with DICTIONARY_ELEMENTS in
1321 Runtime_ArrayConcat (Chromium issue 450895).
1323 Performance and stability improvements on all platforms.
1326 2015-01-22: Version 4.2.21
1328 Performance and stability improvements on all platforms.
1331 2015-01-22: Version 4.2.20
1333 Add a pretty printer to improve the error message non-function calls
1334 (Chromium issue 259443).
1336 Remove implicit uint8_t to char cast in string replace (Chromium issue
1339 Performance and stability improvements on all platforms.
1342 2015-01-21: Version 4.2.19
1344 Performance and stability improvements on all platforms.
1347 2015-01-20: Version 4.2.18
1349 Fix issue with __proto__ when using ES6 object literals (issue 3818).
1351 Performance and stability improvements on all platforms.
1354 2015-01-20: Version 4.2.17
1356 Performance and stability improvements on all platforms.
1359 2015-01-20: Version 4.2.16
1361 Performance and stability improvements on all platforms.
1364 2015-01-19: Version 4.2.15
1366 Unobscurified OFStream (Chromium issue 448102).
1368 Performance and stability improvements on all platforms.
1371 2015-01-19: Version 4.2.14
1373 Performance and stability improvements on all platforms.
1376 2015-01-18: Version 4.2.13
1378 Performance and stability improvements on all platforms.
1381 2015-01-18: Version 4.2.12
1383 Performance and stability improvements on all platforms.
1386 2015-01-17: Version 4.2.11
1388 Performance and stability improvements on all platforms.
1391 2015-01-16: Version 4.2.10
1393 Performance and stability improvements on all platforms.
1396 2015-01-16: Version 4.2.9
1398 MIPS: ES6 computed property names (issue 3754).
1400 ES6 computed property names (issue 3754).
1402 Performance and stability improvements on all platforms.
1405 2015-01-15: Version 4.2.8
1407 Performance and stability improvements on all platforms.
1410 2015-01-15: Version 4.2.7
1412 Performance and stability improvements on all platforms.
1415 2015-01-15: Version 4.2.6
1417 Performance and stability improvements on all platforms.
1420 2015-01-15: Version 4.2.5
1422 Performance and stability improvements on all platforms.
1425 2015-01-14: Version 4.2.4
1427 Auto-generate v8 version based on tags (Chromium issue 446166).
1429 Remove support for signatures with arguments.
1431 Add proper support for proxies to HType (Chromium issue 448730).
1433 [turbofan] Fix truncation/representation sloppiness wrt. bool/bit (issue
1436 Performance and stability improvements on all platforms.
1439 2015-01-14: Version 4.2.3
1441 Performance and stability improvements on all platforms.
1444 2015-01-14: Version 4.2.2
1446 Performance and stability improvements on all platforms.
1449 2015-01-14: Version 4.2.1
1451 Map -0 to integer 0 for typed array constructors (Chromium issue
1454 Introduce a gyp variable to control whether or not slow dchecks are on.
1456 Correctly setup the freelist of the coderange on Win64 (Chromium issue
1459 Fast forward V8 to version 4.2.
1461 Remove "extra checks".
1463 Performance and stability improvements on all platforms.
1466 2015-01-08: Version 3.32.7
1468 Correctly parse line ends for debugging (issue 2825).
1470 Fixed printing during DCE (issue 3679).
1472 Performance and stability improvements on all platforms.
1475 2015-01-08: Version 3.32.6
1477 Performance and stability improvements on all platforms.
1480 2015-01-08: Version 3.32.5
1482 Correct handling of exceptions occured during getting of exception stack
1483 trace (Chromium issue 444805).
1485 Fix bug in Runtime_CompileOptimized resulting from stack overflow
1486 (Chromium issue 446774).
1488 Turn on job-based recompilation (issue 3608).
1490 Performance and stability improvements on all platforms.
1493 2015-01-07: Version 3.32.4
1495 Performance and stability improvements on all platforms.
1498 2015-01-07: Version 3.32.3
1500 Performance and stability improvements on all platforms.
1503 2015-01-07: Version 3.32.2
1505 Performance and stability improvements on all platforms.
1508 2015-01-07: Version 3.32.1
1510 [turbofan] Don't crash when typing load from a Uint8ClampedArray
1511 (Chromium issue 446156).
1513 [turbofan] Truncation of Bit/Word8/16 to Word32 is a no-op (Chromium
1516 [x64] Rearrange code for OOB integer loads (Chromium issue 445858).
1518 Fix %NeverOptimizeFunction() intrinsic (Chromium issue 445732).
1520 [turbofan] Fix invalid bounds check with overflowing offset (Chromium
1523 [turbofan] Raise max virtual registers and call parameter limit (issue
1526 Performance and stability improvements on all platforms.
1529 2014-12-23: Version 3.31.74
1531 [turbofan] Turn DCHECK for fixed slot index into a CHECK (Chromium issue
1534 Performance and stability improvements on all platforms.
1537 2014-12-23: Version 3.31.73
1539 [turbofan] Fix missing ChangeUint32ToUint64 in lowering of LoadBuffer
1540 (Chromium issue 444695).
1542 Enable the embedder to specify what kind of context was disposed.
1544 Performance and stability improvements on all platforms.
1547 2014-12-22: Version 3.31.72
1549 [turbofan] Correctify lowering of Uint8ClampedArray buffer access
1550 (Chromium issue 444508).
1552 Performance and stability improvements on all platforms.
1555 2014-12-20: Version 3.31.71
1557 Performance and stability improvements on all platforms.
1560 2014-12-20: Version 3.31.70
1562 Performance and stability improvements on all platforms.
1565 2014-12-20: Version 3.31.69
1567 Performance and stability improvements on all platforms.
1570 2014-12-19: Version 3.31.68
1572 [turbofan] Fix unsafe out-of-bounds check for checked loads/stores
1573 (Chromium issue 443744).
1575 Performance and stability improvements on all platforms.
1578 2014-12-19: Version 3.31.67
1580 Performance and stability improvements on all platforms.
1583 2014-12-19: Version 3.31.66
1585 Ship ES6 template literals (issue 3230).
1587 Performance and stability improvements on all platforms.
1590 2014-12-18: Version 3.31.65
1592 ES6 template literals should not use legacy octal strings (issue 3736).
1594 Performance and stability improvements on all platforms.
1597 2014-12-18: Version 3.31.64
1599 Fixed -fsanitize=float-cast-overflow problems (issue 3773).
1601 Performance and stability improvements on all platforms.
1604 2014-12-18: Version 3.31.63
1606 ES6 computed property names (issue 3754).
1608 Performance and stability improvements on all platforms.
1611 2014-12-17: Version 3.31.62
1613 Performance and stability improvements on all platforms.
1616 2014-12-17: Version 3.31.61
1618 ES6: Update unscopables to match spec (issue 3632).
1620 ES6 computed property names (issue 3754).
1622 More -fsanitize=vptr fixes (Chromium issue 441099).
1624 [turbofan] Cache conversions inserted during typed lowering (issue
1627 Performance and stability improvements on all platforms.
1630 2014-12-16: Version 3.31.60
1632 Performance and stability improvements on all platforms.
1635 2014-12-16: Version 3.31.59
1637 Performance and stability improvements on all platforms.
1640 2014-12-16: Version 3.31.58
1642 Ship ES6 classes (issue 3330).
1644 ES6 computed property names (issue 3754).
1646 Performance and stability improvements on all platforms.
1649 2014-12-12: Version 3.31.57
1651 Consistently use only one of virtual/OVERRIDE/FINAL (issue 3753).
1653 Performance and stability improvements on all platforms.
1656 2014-12-12: Version 3.31.56
1658 Performance and stability improvements on all platforms.
1661 2014-12-12: Version 3.31.55
1663 Performance and stability improvements on all platforms.
1666 2014-12-11: Version 3.31.54
1668 Implement Array.from() (issue 3336).
1670 move v8_use_external_startup_data to standalone.gypi (Chromium issue
1673 Performance and stability improvements on all platforms.
1676 2014-12-11: Version 3.31.53
1678 Performance and stability improvements on all platforms.
1681 2014-12-11: Version 3.31.52
1683 Ship ES6 block scoping (issue 2198).
1685 Optimize Object.seal and Object.preventExtensions (issue 3662, Chromium
1688 Add Array.prototype.includes (issue 3575).
1690 Performance and stability improvements on all platforms.
1693 2014-12-10: Version 3.31.51
1695 [x64] Fix optimization for certain checked load/stores (Chromium issue
1698 Performance and stability improvements on all platforms.
1701 2014-12-09: Version 3.31.50
1703 Temporarily restore make dependencies.
1705 Performance and stability improvements on all platforms.
1708 2014-12-09: Version 3.31.49
1710 Performance and stability improvements on all platforms.
1713 2014-12-09: Version 3.31.48
1715 Performance and stability improvements on all platforms.
1718 2014-12-09: Version 3.31.47
1720 Temporarily restore make dependencies.
1722 Performance and stability improvements on all platforms.
1725 2014-12-08: Version 3.31.46
1727 Performance and stability improvements on all platforms.
1730 2014-12-08: Version 3.31.45
1732 Update all DEPS to match chromium's DEPS at edb488e.
1734 Turn on DCHECKs and other debugging code if dcheck_always_on is 1 (issue
1737 Optimize GetPrototype.
1739 Performance and stability improvements on all platforms.
1742 2014-12-05: Version 3.31.44
1744 Performance and stability improvements on all platforms.
1747 2014-12-04: Version 3.31.43
1749 ES6 template literals: Fix issue with template after rbrace (issue
1752 Stage ES6 template literals (issue 3230).
1754 Performance and stability improvements on all platforms.
1757 2014-12-04: Version 3.31.42
1759 Performance and stability improvements on all platforms.
1762 2014-12-04: Version 3.31.41
1764 Simplify template literal raw string creation (issue 3710).
1766 Performance and stability improvements on all platforms.
1769 2014-12-03: Version 3.31.40
1771 Performance and stability improvements on all platforms.
1774 2014-12-03: Version 3.31.39
1776 Performance and stability improvements on all platforms.
1779 2014-12-03: Version 3.31.38
1781 Stage ES6 classes and object literal extensions (issue 3330).
1783 Fixed environment handling for LFlooringDivI on ARM (Chromium issue
1786 Add GetIdentityHash to v8::Name object API (Chromium issue 437416).
1788 Set V8_CC_GNU or V8_CC_MSVC for clang in gcc / cl mode (Chromium issue
1791 Performance and stability improvements on all platforms.
1794 2014-12-02: Version 3.31.37
1796 Performance and stability improvements on all platforms.
1799 2014-12-02: Version 3.31.36
1801 Set V8_CC_GNU or V8_CC_MSVC for clang in gcc / cl mode (Chromium issue
1804 Performance and stability improvements on all platforms.
1807 2014-12-02: Version 3.31.35
1809 Performance and stability improvements on all platforms.
1812 2014-12-01: Version 3.31.34
1814 Performance and stability improvements on all platforms.
1817 2014-12-01: Version 3.31.33
1819 Performance and stability improvements on all platforms.
1822 2014-12-01: Version 3.31.32
1824 Performance and stability improvements on all platforms.
1827 2014-12-01: Version 3.31.31
1829 Performance and stability improvements on all platforms.
1832 2014-11-29: Version 3.31.30
1834 Performance and stability improvements on all platforms.
1837 2014-11-28: Version 3.31.29
1839 Stage @@toStringTag (--harmony-tostring).
1841 Performance and stability improvements on all platforms.
1844 2014-11-28: Version 3.31.28
1846 Performance and stability improvements on all platforms.
1849 2014-11-28: Version 3.31.27
1851 Ship harmony-strings.
1853 Performance and stability improvements on all platforms.
1856 2014-11-28: Version 3.31.26
1858 Abort optimization in corner case (Chromium issue 436893).
1860 Performance and stability improvements on all platforms.
1863 2014-11-26: Version 3.31.25
1865 Stage ES6 block scoping (issue 2198).
1867 Introduce legacy const slots in correct context (Chromium issue 410030).
1869 Performance and stability improvements on all platforms.
1872 2014-11-26: Version 3.31.24
1874 Performance and stability improvements on all platforms.
1877 2014-11-25: Version 3.31.23
1879 Performance and stability improvements on all platforms.
1882 2014-11-25: Version 3.31.22
1884 Performance and stability improvements on all platforms.
1887 2014-11-24: Version 3.31.21
1889 Performance and stability improvements on all platforms.
1892 2014-11-24: Version 3.31.20
1894 Performance and stability improvements on all platforms.
1897 2014-11-22: Version 3.31.19
1899 Performance and stability improvements on all platforms.
1902 2014-11-21: Version 3.31.18
1904 Performance and stability improvements on all platforms.
1907 2014-11-21: Version 3.31.17
1909 Performance and stability improvements on all platforms.
1912 2014-11-21: Version 3.31.16
1914 Cache template literal callSiteObj (issue 3230).
1916 Rename String.prototype.contains to 'includes'.
1918 Reserve code range block for evacuation (Chromium issue 430118).
1920 Performance and stability improvements on all platforms.
1923 2014-11-20: Version 3.31.15
1925 Rename String.prototype.contains to 'includes'.
1927 Performance and stability improvements on all platforms.
1930 2014-11-19: Version 3.31.14
1932 Remove Weak{Map,Set}.prototype.clear.
1934 Performance and stability improvements on all platforms.
1937 2014-11-19: Version 3.31.13
1939 Performance and stability improvements on all platforms.
1942 2014-11-19: Version 3.31.12
1944 Classes: Expand test to cover strict runtime behavior (issue 3330).
1946 v8::String::Concat must not throw (Chromium issue 420240).
1948 Fix disabling all break points from within the debug event callback
1949 (Chromium issue 432493).
1951 Performance and stability improvements on all platforms.
1954 2014-11-18: Version 3.31.11
1956 Performance and stability improvements on all platforms.
1959 2014-11-17: Version 3.31.10
1961 Performance and stability improvements on all platforms.
1964 2014-11-17: Version 3.31.9
1966 Expose internal properties of map/set iterators via mirrors.
1968 Performance and stability improvements on all platforms.
1971 2014-11-17: Version 3.31.8
1973 Performance and stability improvements on all platforms.
1976 2014-11-15: Version 3.31.7
1978 Classes: Add support for stepping through default constructors (issue
1981 Performance and stability improvements on all platforms.
1984 2014-11-14: Version 3.31.6
1986 Fix desugaring of let bindings in for loops to handle continue properly
1989 Performance and stability improvements on all platforms.
1992 2014-11-14: Version 3.31.5
1994 Classes: Implement correct name binding (issue 3330).
1996 Performance and stability improvements on all platforms.
1999 2014-11-14: Version 3.31.4
2001 Performance and stability improvements on all platforms.
2004 2014-11-14: Version 3.31.3
2006 Classes: Cleanup default constructor flag.
2008 Soft fail for invalid cache data.
2010 Implement .of() on typed arrays (issue 3578).
2012 Performance and stability improvements on all platforms.
2015 2014-11-13: Version 3.31.2
2017 MIPS: Leaving a generator via an exception causes it to close (issue
2020 MIPS: ES6: Add support for super in object literals (issue 3571).
2022 Increase the target new space size to the max new space size (issue
2025 Leaving a generator via an exception causes it to close (issue 3096).
2027 Correctly compute line numbers in functions from the function
2028 constructor (Chromium issue 109362).
2030 Rename v8::Exception::GetMessage to CreateMessage.
2032 Classes: Add support for arguments in default constructor (issue 3672).
2034 ES6: Add support for super in object literals (issue 3571).
2036 Performance and stability improvements on all platforms.
2039 2014-11-12: Version 3.31.1
2041 Fix has_constant_parameter_count() confusion in LReturn (Chromium issue
2044 Performance and stability improvements on all platforms.
2047 2014-11-05: Version 3.30.33
2049 `1..isPrototypeOf.call(null)` should return false, not throw TypeError
2052 Refactor ObjectGetOwnPropertyKeys to accept bitmask rather than boolean
2055 Add debug mirror support for ES6 Map/Set iterators (Chromium issue
2058 Performance and stability improvements on all platforms.
2061 2014-11-04: Version 3.30.30
2063 Performance and stability improvements on all platforms.
2066 2014-11-02: Version 3.30.27
2068 Performance and stability improvements on all platforms.
2071 2014-11-02: Version 3.30.26
2073 Performance and stability improvements on all platforms.
2076 2014-11-01: Version 3.30.25
2078 Performance and stability improvements on all platforms.
2081 2014-11-01: Version 3.30.24
2083 Ensure we don't try to inline raw access to indexed interceptor
2084 receivers (Chromium issue 419220).
2086 Performance and stability improvements on all platforms.
2089 2014-10-31: Version 3.30.23
2091 Introduce v8::Exception::GetMessage to find location of an error object
2092 (Chromium issue 427954).
2094 Performance and stability improvements on all platforms.
2097 2014-10-30: Version 3.30.22
2099 MIPS: Classes: Add super support in methods and accessors (issue 3330).
2101 Classes: Add super support in methods and accessors (issue 3330).
2103 Performance and stability improvements on all platforms.
2106 2014-10-29: Version 3.30.21
2108 MIPS: Classes: Add basic support for properties (issue 3330).
2110 Classes: Add more tests for prototype edge cases (Chromium issue 3655).
2112 Classes: Add test for method prototype (issue 3330).
2114 Get stack trace for uncaught exceptions/promise rejections from the
2115 simple stack when available.
2117 Classes: Add basic support for properties (issue 3330).
2119 Allow duplicate property names in classes (issue 3570).
2121 Windows: use SystemTimeToTzSpecificLocalTime instead of localtime_s
2122 (Chromium issue 417640).
2124 Performance and stability improvements on all platforms.
2127 2014-10-28: Version 3.30.20
2129 Performance and stability improvements on all platforms.
2132 2014-10-27: Version 3.30.19
2134 Check string literals with escapes in PreParserTraits::GetSymbol()
2137 only define ARRAYSIZE_UNSAFE for NaCl builds (Chromium issue 405225).
2139 Performance and stability improvements on all platforms.
2142 2014-10-24: Version 3.30.18
2144 Narrow cases where Sparse/Smart versions of Array methods are used
2145 (issues 2615, 3612, 3621).
2147 Shrink new space in idle notification (Chromium issue 424423).
2149 Performance and stability improvements on all platforms.
2152 2014-10-23: Version 3.30.17
2154 ARM64: Fix stack manipulation (Chromium issue 425585).
2156 Speed up creation of Objects whose prototype has dictionary elements
2157 (Chromium issue 422754).
2159 Enable libstdc++ debug mode in debug builds (issue 3638).
2161 Performance and stability improvements on all platforms.
2164 2014-10-22: Version 3.30.16
2166 Remove v8stdint.h, it doesn't serve a purpose anymore.
2168 Performance and stability improvements on all platforms.
2171 2014-10-21: Version 3.30.15
2173 Avoid the Marsaglia effect in 3D (Chromium issue 423311).
2175 Performance and stability improvements on all platforms.
2178 2014-10-20: Version 3.30.14
2180 Performance and stability improvements on all platforms.
2183 2014-10-17: Version 3.30.13
2185 Don't expose Array.prototype.values as it breaks webcompat (Chromium
2188 Fix break location calculation (Chromium issue 419663).
2190 Enable libstdc++ debug mode in debug builds (issue 3638).
2192 Performance and stability improvements on all platforms.
2195 2014-10-17: Version 3.30.12
2197 Implement .forEach() on typed arrays (issue 3578).
2199 Introduce v8::Exception::GetStackTrace API method.
2201 Remove SmartMove, bringing Array methods further into spec compliance
2204 Convert argument toObject() in Object.getOwnPropertyNames/Descriptors
2207 Performance and stability improvements on all platforms.
2210 2014-10-15: Version 3.30.11
2212 Array.prototype.{every, filter, find, findIndex, forEach, map, some}:
2213 Use fresh primitive wrapper for calls (issue 3536).
2215 Correctly expand literal buffer for surrogate pairs (Chromium issue
2218 Performance and stability improvements on all platforms.
2221 2014-10-15: Version 3.30.10
2223 Squeeze the layout of various AST node types (Chromium issue 417697).
2225 Performance and stability improvements on all platforms.
2228 2014-10-14: Version 3.30.9
2230 Performance and stability improvements on all platforms.
2233 2014-10-13: Version 3.30.8
2235 AST nodes have at most one bailout/typefeedback ID now, saving lots of
2236 memory (Chromium issue 417697).
2238 Allow identifier code points from supplementary multilingual planes
2241 Performance and stability improvements on all platforms.
2244 2014-10-10: Version 3.30.7
2246 Fix computation of UTC time from local time at DST change points (issue
2247 3116, Chromium issues 415424, 417640).
2249 Convert `obj` ToObject in Object.keys() (issue 3587).
2251 Performance and stability improvements on all platforms.
2254 2014-10-09: Version 3.30.6
2256 Update unicode to 7.0.0 (issue 2892).
2258 Classes: Add support for toString (issue 3330).
2260 Don't enable WPO on Win64 and require Server 2003 / x64 for win64
2261 (Chromium issue 421363).
2263 Performance and stability improvements on all platforms.
2266 2014-10-08: Version 3.30.5
2268 Performance and stability improvements on all platforms.
2271 2014-10-08: Version 3.30.4
2273 This uses a runtime function to set up the the constructor and its
2274 prototype (issue 3330).
2276 Remove PersistentBase::ClearAndLeak.
2278 Squeeze the layout of variable proxy nodes (Chromium issue 417697).
2280 Add MonotonicallyIncreasingTime to V8 Platform (Chromium issue 417668).
2282 Fix representation of HLoadRoot (Chromium issue 419036).
2284 Performance and stability improvements on all platforms.
2287 2014-10-03: Version 3.30.3
2289 Removed the Isolate* field from literal nodes (Chromium issue 417697).
2291 Squeeze the layout of expression nodes a bit (Chromium issue 417697).
2293 Merged FeedbackSlotInterface into AstNode, removing the need for a 2nd
2294 vtable (Chromium issue 417697).
2296 Extend CPU profiler with mapping ticks to source lines.
2298 Remove support for parallel sweeping.
2300 Introduce v8::Object::GetIsolate().
2302 Performance and stability improvements on all platforms.
2305 2014-10-02: Version 3.30.2
2307 Fix Hydrogen's BuildStore() (Chromium issue 417508).
2309 Move unit tests to test/unittests (issue 3489).
2311 Changes to ALLOW_UNUSED to match upcoming changes to the Chromium trunk:
2312 * Eliminate usage of ALLOW_UNUSED to define COMPILE_ASSERT and just use
2313 static_assert() in all cases now that all platforms build with C++11. *
2314 Convert remaining uses of ALLOW_UNUSED to ALLOW_UNUSED_TYPE to match how
2315 Chromium will be splitting this functionality. (In Chromium we'll have
2316 both ALLOW_UNUSED_TYPE and ALLOW_UNUSED_LOCAL, which have different
2317 syntax to enable us to use these with MSVC.) (Chromium issue 81439).
2319 Performance and stability improvements on all platforms.
2322 2014-10-01: Version 3.30.1
2324 Introduce PromiseRejectCallback (issue 3093).
2326 ES6: Implement object literal property shorthand (issue 3584).
2328 Performance and stability improvements on all platforms.
2331 2014-09-30: Version 3.29.93
2333 Add a getter for the address and size of the code range to the pulic API
2336 Convert `obj` ToObject in Object.keys() (issue 3587).
2338 Performance and stability improvements on all platforms.
2341 2014-09-29: Version 3.29.92
2343 Performance and stability improvements on all platforms.
2346 2014-09-26: Version 3.29.91
2348 Performance and stability improvements on all platforms.
2351 2014-09-25: Version 3.29.88
2353 Performance and stability improvements on all platforms.
2356 2014-09-24: Version 3.29.87
2358 Preserve message when rethrowing exception (issue 3583).
2360 Fix escaped index JSON parsing (Chromium issue 416449).
2362 Performance and stability improvements on all platforms.
2365 2014-09-23: Version 3.29.84
2367 Performance and stability improvements on all platforms.
2370 2014-09-23: Version 3.29.83
2372 Performance and stability improvements on all platforms.
2375 2014-09-23: Version 3.29.82
2377 Fix escaped index JSON parsing (Chromium issue 416449).
2379 Performance and stability improvements on all platforms.
2382 2014-09-17: Version 3.29.70
2384 Enable ES6 generators (issue 2355).
2386 Fixed int vs. uintptr_t confusion (plus some cleanup on the way) (issue
2389 Move configuration of ResourceConstraints to Isolate construction.
2391 Performance and stability improvements on all platforms.
2394 2014-09-16: Version 3.29.66
2396 Currently, a new isolate is created in an uninitialized state, and
2397 several API methods will automatically initialize it. During this
2398 uninitialized state, code event handlers and function entry handlers can
2399 be attached to the isolate.
2401 Performance and stability improvements on all platforms.
2404 2014-09-15: Version 3.29.64
2406 ES6: String(symbol) should work like symbol.toString (issue 3554).
2408 Arrow functions: Cleanup handling of the prototype property (issue
2411 Remove V8_HOST_CAN_READ_UNALIGNED and its uses (Chromium issue 412967).
2413 Fix Smi vs. HeapObject confusion in HConstants (Chromium issue 412215).
2415 Performance and stability improvements on all platforms.
2418 2014-09-12: Version 3.29.59
2420 Do not use wide reads in CopyCharsUnsigned (Chromium issue 412967).
2422 Fix inaccurate type condition in Hydrogen (Chromium issue 412210).
2424 Fix crash in ScriptDebugServer::wrapCallFrames (Chromium issue 411196).
2426 Performance and stability improvements on all platforms.
2429 2014-09-11: Version 3.29.57
2431 ES6: Add support for method shorthand in object literals (issue 3516).
2433 Unbreak FreeBSD build (hopefully) (issue 3548).
2435 Performance and stability improvements on all platforms.
2438 2014-09-09: Version 3.29.53
2440 Performance and stability improvements on all platforms.
2443 2014-09-08: Version 3.29.50
2445 Allocate a new empty number dictionary when resetting elements (Chromium
2448 Performance and stability improvements on all platforms.
2451 2014-09-05: Version 3.29.43
2453 Enforce correct number comparisons when inlining Array.indexOf (Chromium
2456 Performance and stability improvements on all platforms.
2459 2014-09-04: Version 3.29.41
2461 Performance and stability improvements on all platforms.
2464 2014-09-03: Version 3.29.40
2466 Use correct receiver for DOM accessors on the prototype chain (issue
2469 Performance and stability improvements on all platforms.
2472 2014-09-02: Version 3.29.38
2474 Do not clear weak monomorphic IC after context disposal (Chromium issue
2477 Turn on job-based sweeping (issue 3104).
2479 Performance and stability improvements on all platforms.
2482 2014-09-01: Version 3.29.35
2484 Performance and stability improvements on all platforms.
2487 2014-08-29: Version 3.29.29
2489 Performance and stability improvements on all platforms.
2492 2014-08-28: Version 3.29.27
2494 Performance and stability improvements on all platforms.
2497 2014-08-28: Version 3.29.25
2499 Performance and stability improvements on all platforms.
2502 2014-08-28: Version 3.29.24
2504 Tweaks to generate XP-compatible .exes (Chromium issue 407517).
2506 Performance and stability improvements on all platforms.
2509 2014-08-28: Version 3.29.23
2511 Performance and stability improvements on all platforms.
2514 2014-08-27: Version 3.29.20
2516 Handle empty allocation list in CodeRange properly (issue 3540, Chromium
2519 Fixed inlining of constant values (issue 3529).
2521 Performance and stability improvements on all platforms.
2524 2014-08-25: Version 3.29.17
2526 Performance and stability improvements on all platforms.
2529 2014-08-24: Version 3.29.16
2531 Fix issue with numeric property names (issue 3507).
2533 Add back the duplicate property checker (issue 3498).
2535 Performance and stability improvements on all platforms.
2538 2014-08-22: Version 3.29.14
2540 Don't inline Array.shift() if receiver map is not extensible (Chromium
2543 Performance and stability improvements on all platforms.
2546 2014-08-21: Version 3.29.11
2548 Refactor ParseObjectLiteral.
2550 Support symbol-named properties in API (issue 3394).
2552 Suppress test262 test that tests duplicate properties.
2554 ES6: Duplicate properties are no longer an error (issue 3498).
2556 Expose function CheckDebugBreak in the debugger api.
2558 Remove RegExp.$input (issue 3486).
2560 Performance and stability improvements on all platforms.
2563 2014-08-21: Version 3.29.10
2565 ES6: Make sure we do not store -0 as the key in Map/Set (issue 3515).
2567 Remove removed flags from tests.
2569 Expose well-known Symbols to C++ API (Chromium issue 341423).
2571 Implement ES6 Array.of() (issue 3427).
2573 Performance and stability improvements on all platforms.
2576 2014-08-20: Version 3.29.9
2578 Correctly handle holes when concat()ing double arrays (Chromium issue
2581 [turbofan] Refactor the InstructionSelector tests (issue 3489).
2583 ES6: Make Map/Set constructors support iterable values (issue 3508).
2585 WeakMap/WeakSet: Add test for non object keys (issue 3399).
2587 Performance and stability improvements on all platforms.
2590 2014-08-12: Version 3.28.71
2592 ToNumber(Symbol) should throw TypeError (issue 3499).
2594 Performance and stability improvements on all platforms.
2597 2014-08-11: Version 3.28.69
2599 Performance and stability improvements on all platforms.
2602 2014-08-09: Version 3.28.65
2604 Performance and stability improvements on all platforms.
2607 2014-08-08: Version 3.28.64
2609 ES6: Implement WeakMap and WeakSet constructor logic (issue 3399).
2611 Enable ES6 unscopables (issue 3401).
2613 Turn on harmony_unscopables for es_staging (issue 3401).
2615 Remove proxies from --harmony switch for M38, because problems.
2617 Reland "Add initial support for compiler unit tests using GTest/GMock."
2620 Enable ES6 iteration by default (issue 2214).
2622 Performance and stability improvements on all platforms.
2625 2014-08-07: Version 3.28.62
2627 Only escape U+0022 in argument values of `String.prototype` HTML methods
2630 Update webkit test for expected own properties.
2632 This implements unscopables (issue 3401).
2634 Add `CheckObjectCoercible` for the `String.prototype` HTML methods
2637 Add initial support for compiler unit tests using GTest/GMock (issue
2640 Trigger exception debug events on Promise reject (Chromium issue
2643 Refactor unit tests for the base library to use GTest (issue 3489).
2645 Performance and stability improvements on all platforms.
2648 2014-08-06: Version 3.28.60
2650 Enable ES6 Map and Set by default (issue 1622).
2652 Performance and stability improvements on all platforms.
2655 2014-08-06: Version 3.28.59
2657 Removed GetConstructor from the API. Instead either get the
2658 "constructor" property stored in the prototype, or keep a side-table.
2660 Enable ES6 Symbols by default (issue 2158).
2662 Performance and stability improvements on all platforms.
2665 2014-08-05: Version 3.28.57
2667 Add dependencies on gtest and gmock.
2669 Performance and stability improvements on all platforms.
2672 2014-08-04: Version 3.28.54
2674 Performance and stability improvements on all platforms.
2677 2014-08-01: Version 3.28.53
2679 Performance and stability improvements on all platforms.
2682 2014-07-31: Version 3.28.52
2684 Performance and stability improvements on all platforms.
2687 2014-07-31: Version 3.28.51
2689 Drop deprecated memory related notification API (Chromium issue 397026).
2691 Performance and stability improvements on all platforms.
2694 2014-07-31: Version 3.28.50
2696 Use emergency memory in the case of out of memory during evacuation
2697 (Chromium issue 395314).
2699 Performance and stability improvements on all platforms.
2702 2014-07-30: Version 3.28.48
2704 Fix Object.freeze with field type tracking. Keep the descriptor properly
2705 intact while update the field type (issue 3458).
2707 Performance and stability improvements on all platforms.
2710 2014-07-29: Version 3.28.45
2712 Performance and stability improvements on all platforms.
2715 2014-07-28: Version 3.28.43
2717 Performance and stability improvements on all platforms.
2720 2014-07-25: Version 3.28.38
2722 Fix issue with setters and their holders in accessors.cc (Chromium issue
2725 Introduce more debug events for promises (issue 3093).
2727 Move gc notifications from V8 to Isolate and make idle hint mandatory
2728 (Chromium issue 397026).
2730 The accessors should get the value from the holder and not from this
2733 Performance and stability improvements on all platforms.
2736 2014-07-24: Version 3.28.35
2738 Rebaseline/update the intl tests with ICU 52 (issue 3454).
2740 Expose the content of Sets and WeakSets through SetMirror (issue 3093).
2742 Performance and stability improvements on all platforms.
2745 2014-07-23: Version 3.28.32
2747 Update ICU to 5.2 (matching chromium) (issue 3452).
2749 Performance and stability improvements on all platforms.
2752 2014-07-22: Version 3.28.31
2754 Remove harmony-typeof.
2756 Implement String.prototype.codePointAt and String.fromCodePoint (issue
2759 Performance and stability improvements on all platforms.
2762 2014-07-21: Version 3.28.30
2764 Performance and stability improvements on all platforms.
2767 2014-07-21: Version 3.28.29
2769 Performance and stability improvements on all platforms.
2772 2014-07-18: Version 3.28.28
2774 Performance and stability improvements on all platforms.
2777 2014-07-17: Version 3.28.26
2779 Ship ES6 Math functions (issue 2938).
2781 Make ToPrimitive throw on symbol wrappers (issue 3442).
2783 Performance and stability improvements on all platforms.
2786 2014-07-16: Version 3.28.25
2788 Performance and stability improvements on all platforms.
2791 2014-07-16: Version 3.28.24
2793 Removed some copy-n-paste from StackFrame::Foo API entries (issue 3436).
2795 Performance and stability improvements on all platforms.
2798 2014-07-15: Version 3.28.23
2800 Fix error message about read-only symbol properties (issue 3441).
2802 Include symbol properties in Object.{create,defineProperties} (issue
2805 Performance and stability improvements on all platforms.
2808 2014-07-14: Version 3.28.22
2810 Performance and stability improvements on all platforms.
2813 2014-07-11: Version 3.28.21
2815 Make `let` usable as an identifier in ES6 sloppy mode (issue 2198).
2817 Support ES6 Map and Set in heap profiler (issue 3368).
2819 Performance and stability improvements on all platforms.
2822 2014-07-10: Version 3.28.20
2824 Remove deprecate counter/histogram methods.
2826 Fixed printing of external references (Chromium issue 392068).
2828 Fix several issues with ES6 redeclaration checks (issue 3426).
2830 Performance and stability improvements on all platforms.
2833 2014-07-09: Version 3.28.19
2835 Performance and stability improvements on all platforms.
2838 2014-07-09: Version 3.28.18
2840 Reland "Postpone termination exceptions in debug scope." (issue 3408).
2842 Performance and stability improvements on all platforms.
2845 2014-07-08: Version 3.28.17
2847 MIPS: Fix computed properties on object literals with a double as
2848 propertyname (Chromium issue 390732).
2850 Performance and stability improvements on all platforms.
2853 2014-07-08: Version 3.28.16
2855 Fix computed properties on object literals with a double as propertyname
2856 (Chromium issue 390732).
2858 Avoid brittle use of .bind in Promise.all (issue 3420).
2860 Performance and stability improvements on all platforms.
2863 2014-07-07: Version 3.28.15
2865 Remove a bunch of Isolate::UncheckedCurrent calls.
2867 Performance and stability improvements on all platforms.
2870 2014-07-07: Version 3.28.14
2872 Use the HeapObjectIterator to scan-on-scavenge map pages (Chromium issue
2875 Introduce debug events for Microtask queue (Chromium issue 272416).
2877 Split out libplatform into a separate libary.
2879 Add clang-format to presubmit checks.
2881 Stack traces exposed to Javascript should omit extensions (issue 311).
2883 Remove deprecated v8::Context::HasOutOfMemoryException.
2885 Postpone termination exceptions in debug scope (issue 3408).
2887 Performance and stability improvements on all platforms.
2890 2014-07-04: Version 3.28.13
2895 2014-07-04: Version 3.28.12
2897 Use the HeapObjectIterator to scan-on-scavenge map pages (Chromium issue
2900 Introduce debug events for Microtask queue (Chromium issue 272416).
2902 Performance and stability improvements on all platforms.
2905 2014-07-03: Version 3.28.11
2907 Split out libplatform into a separate libary.
2909 Performance and stability improvements on all platforms.
2912 2014-07-03: Version 3.28.10
2914 Add clang-format to presubmit checks.
2916 Stack traces exposed to Javascript should omit extensions (issue 311).
2918 Remove deprecated v8::Context::HasOutOfMemoryException.
2920 Postpone termination exceptions in debug scope (issue 3408).
2922 Performance and stability improvements on all platforms.
2925 2014-07-02: Version 3.28.9
2927 Make freeze & friends ignore private properties (issue 3419).
2929 Introduce a builddeps make target (issue 3418).
2931 Performance and stability improvements on all platforms.
2934 2014-07-01: Version 3.28.8
2936 Remove static initializer from isolate.
2938 ES6: Add missing Set.prototype.keys function (issue 3411).
2940 Introduce debug events for promises (issue 3093).
2942 Performance and stability improvements on all platforms.
2945 2014-06-30: Version 3.28.7
2947 Performance and stability improvements on all platforms.
2950 2014-06-30: Version 3.28.6
2952 Unbreak "os" stuff in shared d8 builds (issue 3407).
2954 Performance and stability improvements on all platforms.
2957 2014-06-26: Version 3.28.4
2959 Compile optimized code with active debugger but no break points
2960 (Chromium issue 386492).
2962 Optimize Map/Set.prototype.forEach.
2964 Collect garbage with kReduceMemoryFootprintMask in IdleNotification
2965 (Chromium issue 350720).
2967 Performance and stability improvements on all platforms.
2970 2014-06-26: Version 3.28.3
2972 Grow heap slower if GC freed many global handles (Chromium issue
2975 Performance and stability improvements on all platforms.
2978 2014-06-25: Version 3.28.2
2980 Remove bogus assertions in HCompareObjectEqAndBranch (Chromium issue
2983 Do not eagerly update allow_osr_at_loop_nesting_level (Chromium issue
2986 Set host_arch to ia32 on machines with a 32bit userland but a 64bit
2987 kernel (Chromium issue 368384).
2989 Map/Set: Implement constructor parameter handling (issue 3398).
2991 Performance and stability improvements on all platforms.
2994 2014-06-24: Version 3.28.1
2996 Support LiveEdit on Arm64 (Chromium issue 368580).
2998 Run JS micro tasks in the appropriate context (Chromium issue 385349).
3000 Add a use counter API.
3002 Set host_arch to ia32 on machines with a 32bit userland but a 64bit
3005 Performance and stability improvements on all platforms.
3008 2014-06-23: Version 3.28.0
3010 MIPS: Support LiveEdit (Chromium issue 368580).
3012 Array.concat: properly go to dictionary mode when required (Chromium
3015 Support LiveEdit on ARM (Chromium issue 368580).
3017 Performance and stability improvements on all platforms.
3020 2014-06-18: Version 3.27.34
3022 Reduce number of writes to DependentCode array when inserting dependent
3023 IC (Chromium issue 305878).
3025 Performance and stability improvements on all platforms.
3028 2014-06-17: Version 3.27.33
3030 Do GC if CodeRange fails to allocate a block (Chromium issue 305878).
3032 Throw syntax error when a getter/setter has the wrong number of params
3035 Performance and stability improvements on all platforms.
3038 2014-06-17: Version 3.27.32
3040 Performance and stability improvements on all platforms.
3043 2014-06-16: Version 3.27.31
3048 2014-06-16: Version 3.27.30
3050 Fix representation of Phis for mutable-heapnumber-in-object-literal
3051 properties (issue 3392).
3053 Performance and stability improvements on all platforms.
3056 2014-06-16: Version 3.27.29
3058 Emulate MLS on pre-ARMv6T2. Cleaned up thumbee vs. thumb2 confusion.
3060 X87: Fixed flooring division by a power of 2, once again.. (issue 3259).
3062 Fixed undefined behavior in RNG (Chromium issue 377790).
3064 Performance and stability improvements on all platforms.
3067 2014-06-13: Version 3.27.28
3069 Add v8::Promise::Then (Chromium issue 371288).
3071 Performance and stability improvements on all platforms.
3074 2014-06-12: Version 3.27.27
3076 Fix detection of VFP3D16 on Galaxy Tab 10.1 (issue 3387).
3078 Performance and stability improvements on all platforms.
3081 2014-06-12: Version 3.27.26
3083 MIPS: Fixed flooring division by a power of 2, once again.. (issue
3086 Fixed flooring division by a power of 2, once again.. (issue 3259).
3088 Fix unsigned comparisons (issue 3380).
3090 Performance and stability improvements on all platforms.
3093 2014-06-11: Version 3.27.25
3095 Performance and stability improvements on all platforms.
3098 2014-06-11: Version 3.27.24
3100 Fix invalid attributes when generalizing because of incompatible map
3101 change (Chromium issue 382143).
3103 Fix missing smi check in inlined indexOf/lastIndexOf (Chromium issue
3106 Performance and stability improvements on all platforms.
3109 2014-06-06: Version 3.27.23
3111 Performance and stability improvements on all platforms.
3114 2014-06-06: Version 3.27.22
3116 Performance and stability improvements on all platforms.
3119 2014-06-06: Version 3.27.21
3121 Turn on harmony_collections for es_staging (issue 1622).
3123 Do not make heap iterable eagerly (Chromium issue 379740).
3125 Performance and stability improvements on all platforms.
3128 2014-06-05: Version 3.27.20
3130 Fix invalid loop condition for Array.lastIndexOf() (Chromium issue
3133 Add API support for passing a C++ function as a microtask callback.
3135 Performance and stability improvements on all platforms.
3138 2014-06-04: Version 3.27.19
3140 Split Put into Put and Remove.
3142 ES6: Add support for values/keys/entries for Map and Set (issue 1793).
3144 Performance and stability improvements on all platforms.
3147 2014-06-03: Version 3.27.18
3149 Remove PROHIBITS_OVERWRITING as it is subsumed by non-configurable
3152 Performance and stability improvements on all platforms.
3155 2014-06-02: Version 3.27.17
3157 BuildNumberToString: Check for undefined keys in the cache (Chromium
3160 HRor and HSar can deoptimize (issue 3359).
3162 Simplify, speed-up correct-context ObjectObserve calls.
3164 Performance and stability improvements on all platforms.
3167 2014-05-29: Version 3.27.16
3169 Allow microtasks to throw exceptions and handle them gracefully
3170 (Chromium issue 371566).
3172 Performance and stability improvements on all platforms.
3175 2014-05-28: Version 3.27.15
3177 Performance and stability improvements on all platforms.
3180 2014-05-27: Version 3.27.14
3182 Reland "Customized support for feedback on calls to Array." and follow-
3183 up fixes (Chromium issues 377198, 377290).
3185 Performance and stability improvements on all platforms.
3188 2014-05-26: Version 3.27.13
3190 Performance and stability improvements on all platforms.
3193 2014-05-26: Version 3.27.12
3195 Check for cached transition to ExternalArray elements kind (issue 3337).
3197 Support ES6 weak collections in heap profiler (Chromium issue 376196).
3199 Performance and stability improvements on all platforms.
3202 2014-05-23: Version 3.27.11
3204 Add support for ES6 Symbol in heap profiler (Chromium issue 376194).
3206 Performance and stability improvements on all platforms.
3209 2014-05-22: Version 3.27.10
3211 Implement Mirror object for Symbols (issue 3290).
3213 Allow debugger to step into Map and Set forEach callbacks (issue 3341).
3215 Fix ArrayShift hydrogen support (Chromium issue 374838).
3217 Use SameValueZero for Map and Set (issue 1622).
3219 Array Iterator next should check for own property.
3221 Performance and stability improvements on all platforms.
3224 2014-05-21: Version 3.27.9
3226 Disable ArrayShift hydrogen support (Chromium issue 374838).
3228 ES6 Map/Set iterators/forEach improvements (issue 1793).
3230 Performance and stability improvements on all platforms.
3233 2014-05-20: Version 3.27.8
3235 Move microtask queueing logic from JavaScript to C++.
3237 Partial revert of "Next bunch of fixes for check elimination" (Chromium
3240 Performance and stability improvements on all platforms.
3243 2014-05-19: Version 3.27.7
3245 Performance and stability improvements on all platforms.
3248 2014-05-19: Version 3.27.6
3250 Performance and stability improvements on all platforms.
3253 2014-05-16: Version 3.27.5
3255 Performance and stability improvements on all platforms.
3258 2014-05-15: Version 3.27.4
3260 Drop thenable coercion cache (Chromium issue 372788).
3262 Skip write barriers when updating the weak hash table (Chromium issue
3265 Performance and stability improvements on all platforms.
3268 2014-05-14: Version 3.27.3
3270 Performance and stability improvements on all platforms.
3273 2014-05-13: Version 3.27.2
3275 Harden %SetIsObserved with RUNTIME_ASSERTs (Chromium issue 371782).
3277 Drop unused static microtask API.
3279 Introduce an api to query the microtask autorun state of an isolate.
3281 Performance and stability improvements on all platforms.
3284 2014-05-12: Version 3.27.1
3286 Object.observe: avoid accessing acceptList properties more than once
3289 Array Iterator prototype should not have a constructor (issue 3293).
3291 Fix typos in unit test for Array.prototype.fill().
3293 Shorten autogenerated error message for functions only (issue 3019,
3294 Chromium issue 331971).
3296 Reland "Removed default Isolate." (Chromium issue 359977).
3298 Performance and stability improvements on all platforms.
3301 2014-05-09: Version 3.27.0
3303 Unbreak samples and tools.
3305 Performance and stability improvements on all platforms.
3308 2014-05-08: Version 3.26.33
3310 Removed default Isolate (Chromium issue 359977).
3312 Performance and stability improvements on all platforms.
3315 2014-05-07: Version 3.26.32
3317 Performance and stability improvements on all platforms.
3320 2014-05-06: Version 3.26.31
3322 Add a basic gn file for V8.
3324 Performance and stability improvements on all platforms.
3327 2014-05-05: Version 3.26.30
3329 Introduce a microtask suppression scope and move microtask methods to
3330 isolate (Chromium issue 369503).
3332 Re-enable Object.observe and add enforcement for security invariants.
3334 Move cache line size calculation directly into CPU::FlushICache
3335 (Chromium issue 359977).
3337 Generation of our home-grown memmove doesn't depend on serializer state
3338 anymore (Chromium issue 359977).
3340 Fix |RunMicrotasks()| leaking reference to the last context being run
3343 Object.defineProperty shouldn't be a hint that we're constructing a
3344 dictionary (Chromium issue 362870).
3346 Performance and stability improvements on all platforms.
3349 2014-05-01: Version 3.26.29
3351 Added a Isolate* parameter to Serializer::enabled() (Chromium issue
3354 ES6: Add support for Array.prototype.fill() (issue 3273).
3356 Performance and stability improvements on all platforms.
3359 2014-04-29: Version 3.26.28
3361 PromiseThen should ignore non-function parameters (Chromium issue
3364 Performance and stability improvements on all platforms.
3367 2014-04-29: Version 3.26.27
3369 Error stack getter should not overwrite itself with a data property
3372 Performance and stability improvements on all platforms.
3375 2014-04-28: Version 3.26.26
3377 Expose promise value through promise mirror (issue 3093).
3379 Simplified CPU/CpuFeatures a bit (Chromium issue 359977).
3381 Performance and stability improvements on all platforms.
3384 2014-04-28: Version 3.26.25
3386 Add timestamps to CPU profile samples (Chromium issue 363976).
3388 Expose promise status through promise mirror (issue 3093).
3390 Remove static CallCompletedCallback handlers.
3392 Added an Isolate* field to NoTrackDoubleFieldsForSerializerScope,
3393 PlatformFeatureScope and BinaryOpIC::State (Chromium issue 359977).
3395 Trigger debug event on not yet caught exception in promises (issue
3398 Unbreak vtunejit=on (issue 3288).
3400 Performance and stability improvements on all platforms.
3403 2014-04-25: Version 3.26.24
3405 MIPS: CodeStubs contain their corresponding Isolate* now. (part 2)
3406 (Chromium issue 359977).
3408 MIPS: CodeStubs contain their corresponding Isolate* now. (part 1)
3409 (Chromium issue 359977).
3411 CodeStubs contain their corresponding Isolate* now. (part 2) (Chromium
3414 Make DescriptorArray::IsMoreGeneralThan() and DescriptorArray::Merge()
3415 compatible again (Chromium issue 365172).
3417 CodeStubs contain their corresponding Isolate* now. (part 1) (Chromium
3420 Performance and stability improvements on all platforms.
3423 2014-04-24: Version 3.26.23
3425 Performance and stability improvements on all platforms.
3428 2014-04-23: Version 3.26.22
3430 Disable field type tracking by default (Chromium issue 365172).
3432 Performance and stability improvements on all platforms.
3435 2014-04-23: Version 3.26.21
3437 Context-allocate all parameters in generators (issue 3280).
3439 Simplify v8/Isolate teardown (Chromium issue 359977).
3441 Performance and stability improvements on all platforms.
3444 2014-04-21: Version 3.26.20
3446 ES6: Add support for Map/Set forEach (Chromium issues 1793, 2323).
3448 Performance and stability improvements on all platforms.
3451 2014-04-18: Version 3.26.19
3453 ES6: Add support for Map/Set forEach (Chromium issues 1793, 2323).
3455 Performance and stability improvements on all platforms.
3458 2014-04-17: Version 3.26.18
3460 Removed Isolate::EnterDefaultIsolate (Chromium issue 359977).
3462 Performance and stability improvements on all platforms.
3465 2014-04-16: Version 3.26.17
3467 Clear invalid field maps in PropertyAccessInfo (Chromium issue 363956).
3469 ES6: Add support for Map/Set forEach (Chromium issues 1793, 2323).
3471 Performance and stability improvements on all platforms.
3474 2014-04-16: Version 3.26.16
3476 Removed EnterIsolateIfNeeded and a soon-to-be-useless assertion
3477 (Chromium issue 359977).
3479 Removed GetDefaultIsolate{Debugger,ForLocking,StackGuard} (Chromium
3482 Performance and stability improvements on all platforms.
3485 2014-04-15: Version 3.26.15
3487 Fix result of LCodeGen::DoWrapReceiver for strict functions and builtins
3488 (Chromium issue 362128).
3490 Performance and stability improvements on all platforms.
3493 2014-04-15: Version 3.26.14
3495 Performance and stability improvements on all platforms.
3498 2014-04-14: Version 3.26.13
3500 Make maps in monomorphic IC stubs weak (issue 2073).
3502 x64: Make sure that the upper half of a 64bit register contains 0 for
3503 int32 values (Chromium issue 360611).
3505 Performance and stability improvements on all platforms.
3508 2014-04-11: Version 3.26.12
3510 Do not use ranges after range analysis (Chromium issue 361608).
3512 Performance and stability improvements on all platforms.
3515 2014-04-10: Version 3.26.11
3517 Performance and stability improvements on all platforms.
3520 2014-04-10: Version 3.26.10
3522 Allow the embedder to pass the virtual memory limit to v8.
3524 Performance and stability improvements on all platforms.
3527 2014-04-09: Version 3.26.9
3529 Fix invalid local property lookup for transitions (Chromium issue
3532 MIPS: Fixed flooring division by -1 (issue 3259).
3534 Fixed flooring division by -1 on ARM (issue 3259).
3536 Make `String.prototype.contains` throw when passing a regular expression
3539 Performance and stability improvements on all platforms.
3542 2014-04-08: Version 3.26.8
3544 Yet another regression test for range analysis (issue 3204).
3546 Performance and stability improvements on all platforms.
3549 2014-04-07: Version 3.26.7
3551 Performance and stability improvements on all platforms.
3554 2014-04-04: Version 3.26.6
3556 Performance and stability improvements on all platforms.
3559 2014-04-03: Version 3.26.5
3561 Performance and stability improvements on all platforms.
3564 2014-04-03: Version 3.26.4
3566 Make stray 'return' an early error.
3568 Show references from weak containers as weak in heap snapshots (Chromium
3571 Make invalid LHSs that are calls late errors (Chromium issue 358346).
3573 Performance and stability improvements on all platforms.
3576 2014-04-02: Version 3.26.3
3578 Support typed arrays in IsMoreGeneralElementsKindTransition (Chromium
3581 Remove debugger_auto_break flag.
3583 Store i18n meta data in hidden symbols instead of js accessible
3584 properties (Chromium issue 354967).
3586 Performance and stability improvements on all platforms.
3589 2014-04-01: Version 3.26.2
3591 Performance and stability improvements on all platforms.
3594 2014-04-01: Version 3.26.1
3596 Fix Type::Intersect to skip uninhabited bitsets (Chromium issue 357330).
3598 Fix PrepareKeyedOperand on arm (Chromium issue 358057).
3600 Performance and stability improvements on all platforms.
3603 2014-03-31: Version 3.26.0
3605 Deprecate Start/StopCpuProfiling methods (issue 3213).
3607 Don't crash if we get a timezone change notification on an uninitialized
3608 isolate (Chromium issue 357362).
3610 Performance and stability improvements on all platforms.
3613 2014-03-28: Version 3.25.30
3615 NativeContext::map_cache reference should be strong in heap snapshots
3616 (Chromium issue 357060).
3618 Performance and stability improvements on all platforms.
3621 2014-03-27: Version 3.25.29
3623 Performance and stability improvements on all platforms.
3626 2014-03-27: Version 3.25.28
3628 Performance and stability improvements on all platforms.
3631 2014-03-26: Version 3.25.27
3633 Promise constructor should not be enumerable (Chromium issue 352597).
3635 Performance and stability improvements on all platforms.
3638 2014-03-26: Version 3.25.26
3640 Performance and stability improvements on all platforms.
3643 2014-03-25: Version 3.25.25
3645 Roll ICU 239289:258359 and add support for external ICU data tables
3646 (issue 3142, Chromium issue 72633).
3648 Performance and stability improvements on all platforms.
3651 2014-03-25: Version 3.25.24
3653 Add support for per-isolate private symbols.
3655 No longer OOM on invalid string length (issue 3060).
3657 Remove Failure::OutOfMemory propagation and
3658 V8::IgnoreOutOfMemoryException (issue 3060).
3660 Tentative Windows dll build fix: Don't V8_EXPORT ScriptCompiler::Source
3663 Performance and stability improvements on all platforms.
3666 2014-03-24: Version 3.25.23
3668 Rename A64 port to ARM64 port (Chromium issue 354405).
3670 Fix missing access check in Runtime_SetPrototype (Chromium issue
3673 Fix polymorphic hydrogen handling of SLOPPY_ARGUMENTS_ELEMENTS (Chromium
3676 Performance and stability improvements on all platforms.
3679 2014-03-20: Version 3.25.22
3681 Increase the "local variables in a function" limit (issue 3205).
3683 Implement ES6 symbol registry and predefined symbols.
3685 Throw exception on invalid string length instead of OOM (Chromium issue
3688 Performance and stability improvements on all platforms.
3691 2014-03-20: Version 3.25.21
3693 Performance and stability improvements on all platforms.
3696 2014-03-20: Version 3.25.20
3698 Fix polymorphic keyed loads for SLOPPY_ARGUMENTS_ELEMENTS (Chromium
3701 Performance and stability improvements on all platforms.
3704 2014-03-19: Version 3.25.19
3706 Performance and stability improvements on all platforms.
3709 2014-03-19: Version 3.25.18
3711 Performance and stability improvements on all platforms.
3714 2014-03-19: Version 3.25.17
3716 Performance and stability improvements on all platforms.
3719 2014-03-18: Version 3.25.16
3721 Apply numeric casts correctly in typed arrays and related code (Chromium
3724 Performance and stability improvements on all platforms.
3727 2014-03-18: Version 3.25.15
3729 Don't generate keyed store ICs for global proxies (Chromium issue
3732 MIPS: Make invalid LHSs a parse-time (reference) error (Chromium issue
3735 Make invalid LHSs a parse-time (reference) error (Chromium issue
3738 Add Promises/A+ Compliance Test Suite (Chromium issue 347095).
3740 Split Promise API into Promise/Resolver.
3742 Performance and stability improvements on all platforms.
3745 2014-03-17: Version 3.25.14
3747 Performance and stability improvements on all platforms.
3750 2014-03-17: Version 3.25.13
3752 Move profiler callback interfaces from v8.h to v8-profiler.h.
3754 Performance and stability improvements on all platforms.
3757 2014-03-14: Version 3.25.12
3759 PromiseCoerce should deal with an error during accessing "then"
3760 (Chromium issue 347095).
3762 Propagate updated offsets in BoundsCheckBbData (Chromium issue 350863).
3764 Add regression test for range analysis bug (issue 3204).
3766 Continued fix for 351257. Reusing the feedback vector is too complex
3767 (Chromium issue 351257).
3769 StopCpuProfiling should return non-const CpuProfile (issue 3213).
3771 Allow for compiling with xcode 5.1 (which doesn't have gcc anymore).
3773 Performance and stability improvements on all platforms.
3776 2014-03-14: Version 3.25.11
3778 MIPS: Remove uses of CanBeNegative() in HMod (issue 3204).
3780 MIPS: Remove uses of RangeCanInclude() in flooring division by power of
3783 MIPS: Fix uses of range analysis results in HChange (issue 3204).
3785 Make translation of modulus operation '--stress-opt'-proof (Chromium
3788 Remove uses of CanBeNegative() in HMod (issue 3204).
3790 Remove uses of RangeCanInclude() in flooring division by power of 2
3793 Fix uses of range analysis results in HChange (issue 3204).
3795 Performance and stability improvements on all platforms.
3798 2014-03-14: Version 3.25.10
3800 This version was not committed due to script failures.
3803 2014-03-13: Version 3.25.9
3805 Reland "Enable Object.observe by default" again (issue 2409).
3807 Use intrinsics for builtin ArrayBuffer property accesses (Chromium issue
3810 Performance and stability improvements on all platforms.
3813 2014-03-12: Version 3.25.8
3815 Fix HIsSmiAndBranch::KnownSuccessorBlock() by deleting it (Chromium
3818 Fix handling of polymorphic array accesses with constant index (Chromium
3821 Fix lazy deopt after tagged binary ops (Chromium issue 350434).
3823 MIPS: Cleanup some of the range uses in ModI/DivI (issue 3204).
3825 Fix issue with getOwnPropertySymbols and hidden properties (Chromium
3828 Cleanup some of the range uses in ModI/DivI (issue 3204).
3830 PromiseCoerce should ignore primitive values (Chromium issue 347095).
3832 Use a per-isolate cache for the date object JS bits (Chromium issue
3835 Performance and stability improvements on all platforms.
3838 2014-03-11: Version 3.25.7
3840 Promise.all and Promise.race should reject non-array parameter (Chromium
3843 Promise.all and Promise race should use "then" rather than "chain"
3844 (Chromium issue 347427).
3846 Merge the "Compute Minus Zero Checks" phase into the range analysis
3849 Performance and stability improvements on all platforms.
3852 2014-03-10: Version 3.25.6
3854 Replace the recursion in PropagateMinusZeroChecks() with a loop and a
3855 worklist (issue 3204).
3857 Reland "Enable Object.observe by default" (issue 2409).
3859 Enable Object.observe by default (issue 2409).
3861 AllocationTracker now maintains a map from address range to stack trace
3862 that allocated the range. When snapshot is generated the map is used to
3863 find construction stack trace for an object using its address (Chromium
3866 Introduce Runtime_GetAllScopesDetails to get all scopes at once for a
3867 frame (Chromium issue 340285).
3869 Reduce heavy runtime calls from debug mirrors (Chromium issue 340285).
3871 Check and clear date cache in DateCurrentTime, DateLocalTimezone and
3872 getTimezoneOffset (Chromium issue 142141).
3874 Performance and stability improvements on all platforms.
3877 2014-03-06: Version 3.25.5
3879 Fix HConstants with Smi-ranged HeapNumber values (Chromium issue
3882 Fix issues with JSON stringify replacer array (issues 3200, 3201).
3884 Performance and stability improvements on all platforms.
3887 2014-03-05: Version 3.25.4
3889 x64: Fix LMathMinMax for constant Smi right-hand operands (Chromium
3892 Performance and stability improvements on all platforms.
3895 2014-03-04: Version 3.25.3
3897 Clear optimized code cache in shared function info when code gets
3898 deoptimized (Chromium issue 343609).
3900 Fixed constant folding for Math.clz32 (Chromium issue 347906).
3902 Fix JSObject::PrintTransitions (Chromium issue 347912).
3904 Fix handling of constant global variable assignments (Chromium issue
3907 Removed bogus ASSERT (Chromium issue 347542).
3909 Mark HCompareMap as having Tagged representation (Chromium issue
3912 Fix crasher in Object.getOwnPropertySymbols (Chromium issue 346141).
3914 Fix the bit massaging code in CompleteParserRecorder::WriteNumber
3915 (Chromium issue 346221).
3917 Don't eliminate loads with incompatible types or representations
3918 (Chromium issue 346343).
3920 Check that after a weak callback, the handle is either dead or strong
3921 (Chromium issue 346061).
3923 Lazy preparsing vs. lazy parsing fix (Chromium issue 346207).
3925 Performance and stability improvements on all platforms.
3928 2014-02-25: Version 3.25.2
3930 Fix the bit massaging code in CompleteParserRecorder::WriteNumber
3931 (Chromium issue 346221).
3933 Revert r19455 "Load target types and handlers before IC computation."
3934 (Chromium issue 346149).
3936 Don't eliminate loads with incompatible types or representations
3937 (Chromium issue 346343).
3939 Fix for a smi stores optimization on x64 with a regression test
3940 (Chromium issue 345715).
3942 Check that after a weak callback, the handle is either dead or strong
3943 (Chromium issue 346061).
3945 negative bounds checking on realm calls (Chromium issue 344285).
3947 Lazy preparsing vs. lazy parsing fix (Chromium issue 346207).
3949 Fix optimistic BCE to back off after deopt (issue 3176).
3951 Performance and stability improvements on all platforms.
3954 2014-02-21: Version 3.25.1
3956 Performance and stability improvements on all platforms.
3959 2014-02-19: Version 3.25.0
3961 ES6: Tighten up Object.prototype.__proto__ (issue 3064).
3963 Fix Hydrogen bounds check elimination (Chromium issue 344186).
3965 Performance and stability improvements on all platforms.
3968 2014-02-19: Version 3.24.40
3970 A64: Let the MacroAssembler resolve branches to distant targets (issue
3973 Fixed and improved code for integral division. Fixed and extended tests
3976 MIPS: Fix assignment of function name constant (issue 3138).
3978 Fix assignment of function name constant (issue 3138).
3980 Performance and stability improvements on all platforms.
3983 2014-02-14: Version 3.24.39
3985 Introduce --job-based-sweeping flag and use individual jobs for sweeping
3986 if set (issue 3104).
3988 Performance and stability improvements on all platforms.
3991 2014-02-13: Version 3.24.38
3993 Merge experimental/a64 to bleeding_edge (issue 3113).
3995 Performance and stability improvements on all platforms.
3998 2014-02-12: Version 3.24.37
4000 Fix spec violations in JSON.stringify wrt replacer array (issue 3135).
4002 Performance and stability improvements on all platforms.
4005 2014-02-11: Version 3.24.36
4007 Fix inconsistencies wrt whitespaces (issue 3109).
4009 Performance and stability improvements on all platforms.
4012 2014-02-10: Version 3.24.35
4014 Fix inconsistencies wrt whitespaces (issue 3109).
4016 Performance and stability improvements on all platforms.
4019 2014-02-07: Version 3.24.34
4021 Performance and stability improvements on all platforms.
4024 2014-02-06: Version 3.24.33
4026 Allow externalizing strings in old pointer space (Chromium issue
4029 Performance and stability improvements on all platforms.
4032 2014-02-05: Version 3.24.32
4034 Add Box object to heap profiler.
4036 Check the offset argument of TypedArray.set for fitting into Smi
4037 (Chromium issue 340125).
4039 Performance and stability improvements on all platforms.
4042 2014-02-04: Version 3.24.31
4044 Fix short-circuiting logical and/or in HOptimizedGraphBuilder (Chromium
4047 Elements field of newly allocated JSArray could be left uninitialized in
4048 some cases (fast literal case) (Chromium issue 340124).
4050 Re-enable escape analysis.
4052 Performance and stability improvements on all platforms.
4055 2014-02-03: Version 3.24.30
4057 Performance and stability improvements on all platforms.
4060 2014-02-01: Version 3.24.29
4062 Performance and stability improvements on all platforms.
4065 2014-01-31: Version 3.24.28
4067 Don't crash in Array.join() if the resulting string exceeds the max
4068 string length (Chromium issue 336820).
4070 Implements ES6 String.prototype.normalize method (issue 2943).
4072 Performance and stability improvements on all platforms.
4075 2014-01-30: Version 3.24.27
4077 Performance and stability improvements on all platforms.
4080 2014-01-29: Version 3.24.26
4082 ES6: Map and Set needs to normalize minus zero (issue 3069).
4084 Make `String.prototype.{starts,ends}With` throw when passing a regular
4085 expression (issue 3070).
4087 Performance and stability improvements on all platforms.
4090 2014-01-28: Version 3.24.25
4092 Performance and stability improvements on all platforms.
4095 2014-01-27: Version 3.24.24
4097 MIPS: Reduce the stack requirements of GetNoCodeAgeSequence (issue
4100 Delete v8_shell target now that chrome uses d8 (Chromium issue 331585).
4102 ARM: Reduce the stack requirements of GetNoCodeAgeSequence (issue 3111).
4104 Performance and stability improvements on all platforms.
4107 2014-01-24: Version 3.24.23
4109 Performance and stability improvements on all platforms.
4112 2014-01-23: Version 3.24.22
4114 Fix compilation on x64 architectures (issue 3110).
4116 Ensure we don't overwrite transitions in SetPropertyIgnoreAttributes
4117 (Chromium issue 326155).
4119 ES6: Implement Object.setPrototypeOf (issue 2675).
4121 Fixed floor-of-div optimization (Chromium issue 334708).
4123 Performance and stability improvements on all platforms.
4126 2014-01-22: Version 3.24.21
4128 Performance and stability improvements on all platforms.
4131 2014-01-21: Version 3.24.20
4133 ES6: Implement Object.setPrototypeOf (issue 2675).
4135 Performance and stability improvements on all platforms.
4138 2014-01-20: Version 3.24.19
4140 Introduce a setting to control the toolset for which d8 is compiled
4143 Performance and stability improvements on all platforms.
4146 2014-01-17: Version 3.24.18
4148 Performance and stability improvements on all platforms.
4151 2014-01-16: Version 3.24.17
4153 Make cells pointing to JSObjects weak in optimized code (issue 2073).
4155 Performance and stability improvements on all platforms.
4158 2014-01-15: Version 3.24.16
4160 Annotate mapped memory regions for LeakSanitizer (Chromium issue
4163 Turn Runtime_MigrateInstance into Runtime_TryMigrateInstance (Chromium
4166 Performance and stability improvements on all platforms.
4169 2014-01-14: Version 3.24.15
4171 Introduce an API mirroring the gc extension.
4173 Performance and stability improvements on all platforms.
4176 2014-01-10: Version 3.24.14
4178 ES6: Add Object.getOwnPropertySymbols (issue 3049).
4180 Performance and stability improvements on all platforms.
4183 2014-01-09: Version 3.24.13
4185 Add Isolate parameter to HandleScope::NumberOfHandles (Chromium issue
4188 Removed v8::AssertNoGCScope.
4190 Performance and stability improvements on all platforms.
4193 2014-01-08: Version 3.24.12
4195 Correctly handle instances without elements in polymorphic keyed
4196 load/store (Chromium issue 331416).
4198 Fix selection of popular pages in store buffer (Chromium issue 331444).
4200 Prepare removal of ObjectTemplate::New without Isolate parameter
4201 (Chromium issue 324225).
4203 Performance and stability improvements on all platforms.
4206 2014-01-07: Version 3.24.11
4208 Remove generated makefiles on linux when running gyp_v8
4209 (Chromium issue 331475)
4211 Fix building d8 with readline support due to API changes
4213 Performance and stability improvements on all platforms.
4216 2014-01-03: Version 3.24.10
4218 Reland r18383: More API cleanup (Chromium issue 324225).
4220 MIPS: Fix loading of global object in LWrapReceiver (Chromium issue
4223 Performance and stability improvements on all platforms.
4226 2014-01-02: Version 3.24.9
4228 Performance and stability improvements on all platforms.
4231 2013-12-30: Version 3.24.8
4233 ARM: fix loading of global object in LWrapReceiver (Chromium issue
4236 Fix a race between concurrent recompilation and OSR (Chromium issue
4239 Turn off concurrent sweeping (issue 3071).
4241 Performance and stability improvements on all platforms.
4244 2013-12-23: Version 3.24.7
4246 Fix small spec violation in String.prototype.split (issue 3026).
4248 Correctly resolve forcibly context allocated parameters in debug-
4249 evaluate (Chromium issue 325676).
4251 Introduce Function::GetBoundFunction.
4253 Performance and stability improvements on all platforms.
4256 2013-12-20: Version 3.24.6
4258 Performance and stability improvements on all platforms.
4261 2013-12-19: Version 3.24.5
4263 Performance and stability improvements on all platforms.
4266 2013-12-18: Version 3.24.4
4268 Removed all stuff marked as V8_DEPRECATED.
4270 Performance and stability improvements on all platforms.
4273 2013-12-17: Version 3.24.3
4275 Performance and stability improvements on all platforms.
4278 2013-12-17: Version 3.24.2
4280 Flush instruction cache for deserialized code objects.
4282 Performance and stability improvements on all platforms.
4285 2013-12-13: Version 3.24.1
4287 Fix polymorphic inlined calls with migrating prototypes.
4289 Fixed global object leak caused by overwriting the global receiver (the
4290 global proxy) in the global object with the global object itself
4291 (Chromium issue 324812).
4293 Initialize Date parse cache with SMI instead of double to workaround
4294 sharing mutable heap numbers in snapshot (Chromium issue 280531).
4296 Switch armv7 setting to arm_version==7 in v8 gyp files (Chromium issue
4299 Performance and stability improvements on all platforms.
4302 2013-12-09: Version 3.24.0
4304 Performance and stability improvements on all platforms.
4307 2013-12-04: Version 3.23.18
4309 Performance and stability improvements on all platforms.
4312 2013-12-03: Version 3.23.17
4314 Performance and stability improvements on all platforms.
4317 2013-12-02: Version 3.23.16
4319 Array builtins need to be prevented from changing frozen objects, and
4320 changing structure on sealed objects (Chromium issue 299979).
4322 Performance and stability improvements on all platforms.
4325 2013-11-29: Version 3.23.15
4327 Fix context register allocation in LTransitionElementsKind
4328 (Chromium issue 324306).
4330 Fix bug in inlining Function.apply (Chromium issue 323942).
4332 Ensure that length is Smi in TypedArrayFromArrayLike constructor
4333 (Chromium issue 324028).
4335 Performance and stability improvements on all platforms.
4338 2013-11-28: Version 3.23.14
4340 Shorten autogenerated error message (issue 3019).
4342 Performance and stability improvements on all platforms.
4345 2013-11-27: Version 3.23.13
4347 Increase precision for base conversion for large integers (issue 3025).
4349 Flatten cons string for single character substrings (Chromium issue
4352 Performance and stability improvements on all platforms.
4355 2013-11-26: Version 3.23.12
4357 Performance and stability improvements on all platforms.
4360 2013-11-25: Version 3.23.11
4362 Deprecate old versions of Isolate::SetData and GetData.
4364 Performance and stability improvements on all platforms.
4367 2013-11-22: Version 3.23.10
4369 Remove preemption thread and API.
4372 Performance and stability improvements on all platforms.
4375 2013-11-21: Version 3.23.9
4377 API: Change AdjustAmountOfExternalAllocatedMemory calls to use int64_t
4378 instead of intptr_t.
4380 Remove deprecated v8::SetResourceConstraints without Isolate parameter.
4382 Remove deprecated v8-defaults.h and defaults.cc.
4383 (Chromium issue 312241)
4385 Make it possible to add more than one piece of embedder data to
4387 (Chromium issue 317398)
4389 Performance and stability improvements on all platforms.
4392 2013-11-20: Version 3.23.8
4394 Fixed crashes exposed though fuzzing.
4395 (Chromium issue 320948)
4397 Deprecated v8::External::New without Isolate parameter.
4399 Made number of available threads isolate-dependent and exposed it to
4400 ResourceConstraints.
4403 Performance and stability improvements on all platforms.
4406 2013-11-19: Version 3.23.7
4408 Bugfix: dependent code field in AllocationSite was keeping code objects
4409 alive even after context death.
4410 (Chromium issue 320532)
4412 Fixed data view accessors to throw execptions on offsets bigger than
4416 Performance and stability improvements on all platforms.
4419 2013-11-18: Version 3.23.6
4421 Limit size of dehoistable array indices.
4422 (Chromium issues 319835, 319860)
4424 Limit the size for typed arrays to MaxSmi.
4425 (Chromium issue 319722)
4427 Performance and stability improvements on all platforms.
4430 2013-11-15: Version 3.23.5
4432 Fixed missing type feedback check for Generic*String addition.
4433 (Chromium issue 318671)
4435 Fixed duplicate check in DependentCode::Insert.
4436 (Chromium issue 318454)
4438 Performance and stability improvements on all platforms.
4441 2013-11-14: Version 3.23.4
4443 Fixed overflow in TypedArray initialization function.
4444 (Chromium issue 319120)
4446 Performance and stability improvements on all platforms.
4449 2013-11-13: Version 3.23.3
4451 Fixed compilation with GCC 4.8.
4454 Added explicit Isolate parameter to External::New.
4455 (Chromium issue 266838)
4457 Performance and stability improvements on all platforms.
4460 2013-11-12: Version 3.23.2
4462 Fixed --extra-code flag for snapshot creation.
4465 Fixed error message wording when instanceof throws.
4466 (Chromium issue 82797, issue 1593)
4468 Performance and stability improvements on all platforms.
4471 2013-11-08: Version 3.23.1
4473 Made HCapturedObjects non-deletable for DCE. (issue 2987)
4475 Use a fixed random seed per default. (issue 1880, 2885)
4477 Fixed y-umlaut to uppercase. (issue 2984)
4479 Performance and stability improvements on all platforms.
4482 2013-11-06: Version 3.23.0
4484 Fixed loading message from an Error object. (Chromium issue 306220)
4486 Made Object.freeze/seal/preventExtensions observable. (issue 2975, 2941)
4488 Made snapshots reproducible. (issue 2885)
4490 Added missing negative dictionary lookup to NonexistentHandlerFrontend.
4493 Performance and stability improvements on all platforms.
4496 2013-10-31: Version 3.22.24
4498 Fixed uint32-to-smi conversion in Lithium.
4499 (Chromium issue 309623)
4501 Performance and stability improvements on all platforms.
4504 2013-10-28: Version 3.22.23
4506 Renamed deprecated __attribute__((no_address_safety_analysis)) to
4507 __attribute__((no_sanitize_address)) (Chromium issue 311283)
4509 Defined DEBUG for v8_optimized_debug=2
4511 Performance and stability improvements on all platforms.
4514 2013-10-25: Version 3.22.22
4516 Record allocation stack traces. (Chromium issue 277984,v8:2949)
4518 Performance and stability improvements on all platforms.
4521 2013-10-24: Version 3.22.21
4523 Performance and stability improvements on all platforms.
4526 2013-10-24: Version 3.22.20
4528 Made Array.prototype.pop throw if the last element is not configurable.
4530 Fixed HObjectAccess for loads from migrating prototypes.
4531 (Chromium issue 305309)
4533 Enabled preaging of code objects when --optimize-for-size.
4534 (Chromium issue 280984)
4536 Exposed v8::Function::GetDisplayName to public API.
4537 (Chromium issue 17356)
4539 Performance and stability improvements on all platforms.
4542 2013-10-23: Version 3.22.19
4544 Fix materialization of captured objects with field tracking.
4545 (Chromium issue 298990)
4547 Performance and stability improvements on all platforms.
4550 2013-10-22: Version 3.22.18
4552 Add tool to visualize machine code/lithium.
4554 Handle misaligned loads and stores in load elimination. Do not track
4555 misaligned loads and be conservative about invalidating misaligned
4556 stores. (issue 2934)
4558 Performance and stability improvements on all platforms.
4561 2013-10-21: Version 3.22.17
4563 Harmony: Implement Math.trunc and Math.sign. (issue 2938)
4565 Performance and stability improvements on all platforms.
4568 2013-10-21: Version 3.22.16
4570 Performance and stability improvements on all platforms.
4573 2013-10-18: Version 3.22.15
4575 Enabled calling the SetReference* & SetObjectGroupId functions with a
4576 Persistent<SubclassOfValue>.
4578 Performance and stability improvements on all platforms.
4581 2013-10-17: Version 3.22.14
4583 Performance and stability improvements on all platforms.
4586 2013-10-16: Version 3.22.13
4588 Do not look up ArrayBuffer on global object in typed array constructor.
4591 Performance and stability improvements on all platforms.
4594 2013-10-15: Version 3.22.12
4596 Added histograms to track fraction of heap spaces and percentage of
4597 generated crankshaft code.
4599 Moved v8_optimized_debug default value to standalone.gypi.
4601 Track JS allocations as they arrive with no affection on performance
4602 when tracking is switched off (Chromium issue 277984).
4604 Performance and stability improvements on all platforms.
4607 2013-10-14: Version 3.22.11
4609 Performance and stability improvements on all platforms.
4612 2013-10-11: Version 3.22.10
4614 Fixed timezone issues with date-time/parse-* tests.
4615 (Chromium issue 2919)
4617 Added column getter to CpuProfileNode (Chromium issue 302537)
4619 Performance and stability improvements on all platforms.
4622 2013-10-10: Version 3.22.9
4624 Ensure only whitelisted stubs have sse2 versions in the snapshot.
4625 (fix for chromium 304565)
4627 Implement ArrayBuffer.isView.
4629 Performance and stability improvements on all platforms.
4632 2013-10-04: Version 3.22.8
4634 Performance and stability improvements on all platforms.
4637 2013-10-03: Version 3.22.7
4639 Debug: Allow stepping into on a given call frame
4640 (Chromium issue 296963).
4642 Always use timeGetTime() for TimeTicks::Now() on Windows
4643 (Chromium issue 288924).
4645 Performance and stability improvements on all platforms.
4648 2013-10-02: Version 3.22.6
4650 Performance and stability improvements on all platforms.
4653 2013-10-01: Version 3.22.5
4655 Disabled externalization of sliced/cons strings in old pointer space
4656 (Chromium issue 276357).
4658 Turned on handle zapping for release builds
4660 Performance and stability improvements on all platforms.
4663 2013-09-30: Version 3.22.4
4665 Function::Call and Object::CallAsFunction APIs should allow v8::Value as
4666 a receiver (issue 2915).
4668 Removed unnecessary mutex (Chromium issue 291236).
4670 Removed ArrayBufferView::BaseAddress method.
4672 Performance and stability improvements on all platforms.
4675 2013-09-27: Version 3.22.3
4677 Added methods to enable configuration of ResourceConstraints based on
4678 limits derived at runtime.
4679 (Chromium issue 292928)
4681 Added -optimize-for-size flag to optimize for memory size (will be used
4682 by pre-aging CL), and removed the is_memory_constrained
4684 (Chromium issue 292928)
4686 Performance and stability improvements on all platforms.
4689 2013-09-26: Version 3.22.2
4691 Performance and stability improvements on all platforms.
4694 2013-09-25: Version 3.22.1
4696 Sped up creating typed arrays from array-like objects.
4697 (Chromium issue 270507)
4699 Performance and stability improvements on all platforms.
4702 2013-09-23: Version 3.22.0
4704 LiveEdit to mark more closure functions for re-instantiation when scope
4708 Made bounds check elimination iterative instead of recursive.
4709 (Chromium issue 289706)
4711 Turned on i18n support by default.
4713 Set the proper instance-type on HAllocate in BuildFastLiteral.
4714 (Chromium issue 284577)
4716 Performance and stability improvements on all platforms.
4719 2013-09-18: Version 3.21.17
4721 Implemented local load/store elimination on basic blocks.
4723 Added mutex when accessing concurrent recompilation output queue.
4724 (Chromium issue 291236)
4726 Don't lookup the cache for the result of Function::New.
4727 (Chromium issue 272579)
4729 Tweaked HConstant::EmitAtUses() to eliminate useless constant
4731 (Chromium issue 2881)
4733 Performance and stability improvements on all platforms.
4736 2013-09-16: Version 3.21.16
4738 Every place where AllocationMemento is initialized with an
4739 AllocationSite is now checked to be sure a valid Site goes in. This is
4740 temporary code to diagnose chromium bug 284577.
4742 Performance and stability improvements on all platforms.
4745 2013-09-13: Version 3.21.15
4747 Non-JSObject heap objects are now handled using slow-path IC stub
4749 (Chromium issue 280632)
4751 i18n Javascript code added to the snapshot.
4754 Performance and stability improvements on all platforms.
4756 2013-09-12: Version 3.21.14
4758 Added access check for observed objects.
4761 Cleaned up v8::ArrayBuffer::Allocator interface.
4764 Performance and stability improvements on all platforms.
4766 2013-09-11: Version 3.21.13
4768 Added a ResourceConstraint for the embedder to specify that V8 is
4769 running on a memory constrained device.
4770 (Chromium issue 280984)
4772 Removed HandleScope default ctor.
4773 (Chromium issue 236173)
4775 Enabled escape analysis for Hydrogen.
4777 Correctly stringified mixed encoding indirect strings.
4778 (Chromium issue 287476)
4780 Performance and stability improvements on all platforms.
4783 2013-09-09: Version 3.21.12
4785 Fixed bitwise negation on x64.
4786 (Chromium issue 285355)
4788 Dropped GetCurrentThreadId() and TerminateExecution(int) from
4791 Fixed polymorphic INTERCEPTOR StoreICs on ARM/MIPS.
4792 (Chromium issue 284998)
4794 Added check if timeout has expired after processing each sample.
4795 (issue 2814,v8:2871)
4797 Removed obsolete global V8::has_been_fooed flags.
4800 Performance and stability improvements on all platforms.
4803 2013-09-05: Version 3.21.11
4805 Performance and stability improvements on all platforms.
4808 2013-09-04: Version 3.21.10
4810 Fixed Eternal::IsEmpty logic (issue 2870).
4812 Performance and stability improvements on all platforms.
4815 2013-09-03: Version 3.21.9
4817 Deprecated Persistent functions which were marked to be deprecated.
4819 Allowed uncacheable identifiers to go generic (issue 2867).
4821 Performance and stability improvements on all platforms.
4824 2013-09-02: Version 3.21.8
4826 Added scriptId to StackTrace frames (issue 2865).
4828 Performance and stability improvements on all platforms.
4831 2013-08-30: Version 3.21.7
4833 Fixed casts of eternal handles.
4835 Turned on global handle zapping.
4837 Always visit branches during HGraph building (Chromium issue 280333).
4839 Profiler changes: removed deprecated API, support higher sampling
4842 Performance and stability improvements on all platforms.
4845 2013-08-29: Version 3.21.6
4847 Fixed inlined 'throw' statements interfering with live range
4848 computation. (issue 2843)
4850 Performance and stability improvements on all platforms.
4853 2013-08-28: Version 3.21.5
4855 Fixed compilation with recent MinGW64 versions. (issue 2300)
4857 Added RemovePrototype to FunctionTemplate. (Chromium issue 272440)
4859 Performance and stability improvements on all platforms.
4862 2013-08-26: Version 3.21.4
4864 Lowered kInitialMaxFastElementArray constant to 95K (issue 2790).
4866 Use signals for cpu profiling on Mac OS X (issue 2814).
4868 Deprecated CpuProfileNode::GetSelfSamplesCount (Chromium issue 267595).
4870 Added support for higher CPU profiler sampling rate on posix systems
4873 Worked around 'inlining failed' build error with older GCC 4.x releases.
4875 Added source map support to tick processor.
4877 Stability improvements on all platforms.
4880 2013-08-23: Version 3.21.3
4882 Temporarily disabled optimization for StringWrappers to use native
4883 valueOf. (issue 2855)
4885 Fixed crash on function declarations in eval inside non-trivial local
4888 Rewrote SamplingCircularQueue. (issue 2814)
4890 Fixed hidden properties on object with frozen prototype. (issue 2829)
4892 Fix deoptimization bug. (Chromium issue 274164)
4894 Stability improvements on all platforms.
4897 2013-08-22: Version 3.21.2
4899 Stability improvements on all platforms.
4902 2013-08-21: Version 3.21.1
4904 Promoted ArrayBuffer, DataView and typed arrays to non-experimental.
4905 (Chromium issue 270527)
4907 Replaced OS::MemCopy with memcpy in typed array initialization.
4908 (Chromium issue 270642)
4910 Moved i18n break iterator C++ code to runtime (issue 2745)
4912 Fixed invalid out-of-bounds store in MacroAssembler::Allocate.
4913 (Chromium issue 263515)
4915 Fixed register misuse in Allocate() on ARM. (issue 2851)
4917 Fixed empty handle dereference in Runtime_InternalNumberFormat.
4918 (Chromium issue 275467)
4920 Performance and stability improvements on all platforms.
4923 2013-08-19: Version 3.21.0
4925 Fixed GC-related crasher (Chromium issue 274438)
4927 Reverted making Intl non-enumerable.
4929 Performance and stability improvements on all platforms.
4932 2013-08-14: Version 3.20.17
4934 Fixed Math.round/floor that had bogus Smi representation
4935 (Chromium issue 272564)
4937 Performance and stability improvements on all platforms.
4940 2013-08-13: Version 3.20.16
4942 Fixed bug in HPhi::SimplifyConstantInput (Chromium issue 269679)
4944 Fixed gcmole bugs in i18n code (issue 2745)
4946 ia32: Calls to the TranscendentalCacheStub must ensure that esi is
4949 Made sure polymorphic element access creates non-replaying
4952 Allowed HPhis to have an invalid merge index. (issue 2815)
4954 Fixed smi-based math floor. (Chromium issue 270268)
4956 Deprecated self and total time getters and total sample count
4957 getter on CpuProfileNode. (Chromium issue 267595)
4959 Fixed Object.freeze, Object.observe wrt CountOperation and
4960 CompoundAssignment. (issue 2774,2779)
4962 Performance and stability improvements on all platforms.
4965 2013-08-07: Version 3.20.15
4967 Exposed eternal handle api.
4969 Bugfix to solve issues with enabling V8 typed arrays in Blink.
4971 Fixed Array index dehoisting. (Chromium issue 264203)
4973 Updated Array Iterator to use numeric indexes (issue 2818)
4975 Return start/end profiling time in microseconds instead of milliseconds
4978 Performance and stability improvements on all platforms.
4981 2013-08-06: Version 3.20.14
4983 Added new Harmony methods to Array.prototype object.
4984 (issue 2776,v8:2777)
4986 Performance and stability improvements on all platforms.
4989 2013-08-01: Version 3.20.12
4991 Removed buggy ToNumber truncation (partial fix for issue 2813)
4993 Calling Map etc without new should throw TypeError (issue 2819)
4995 Fixed a crash for large code objects on ARM (Chromium issue 2736)
4997 Fixed stale unhandlified value in JSObject::SetPropertyForResult.
4998 (Chromium issue 265894)
5000 Added new Harmony methods to String.prototype object.
5001 (issue 2796,v8:2797,v8:2798,v8:2799)
5003 Performance and stability improvements on all platforms.
5006 2013-07-30: Version 3.20.11
5008 Performance and stability improvements on all platforms.
5011 2013-07-29: Version 3.20.10
5013 Performance and stability improvements on all platforms.
5016 2013-07-26: Version 3.20.9
5018 Check that ExternalString objects get aligned resources.
5020 Fixed JSArray-specific length lookup in polymorphic array handling
5021 (Chromium issues 263276, 263905).
5023 Performance and stability improvements on all platforms.
5026 2013-07-24: Version 3.20.8
5028 Deprecated v8::V8::Pause/ResumeProfiler.
5030 Fixed Chromium issues 247688, 258519 and 260203.
5032 Performance and stability improvements on all platforms.
5035 2013-07-22: Version 3.20.7
5037 Deprecated some debugger methods.
5039 Fixed wrong bailout id in polymorphic stores (Chromium issue 259787).
5041 Fixed data race in SamplingCircularQueue (Chromium issue 251218).
5043 Fixed type feedback in presence of negative lookups
5044 (Chromium issue 252797).
5046 Do not materialize context-allocated values for debug-evaluate
5047 (Chromium issue 259300).
5049 Synchronized Compare-Literal behavior in FullCodegen and Hydrogen
5050 (Chromium issue 260345).
5052 Performance and stability improvements on all platforms.
5055 2013-07-17: Version 3.20.6
5057 Try to remove invalidated stubs before falling back to checking the
5058 constant state (Chromium issue 260585).
5060 Fixed gyp_v8 to work with use_system_icu=1 (issue 2475).
5062 Fixed sloppy-mode 'const' under Harmony flag (Chromium issue 173361).
5064 Use internal array as API function cache (Chromium issue 260106).
5066 Fixed possible stack overflow in range analysis
5067 (Chromium issue 259452).
5069 Performance and stability improvements on all platforms.
5072 2013-07-15: Version 3.20.5
5074 Ensured that the length of frozen arrays is immutable
5075 (issue 2711, Chromium issue 259548).
5077 Performance and stability improvements on all platforms.
5080 2013-07-10: Version 3.20.4
5082 Fixed garbage-collection issue that causes a crash on ARM
5083 (Chromium issue 254570)
5085 Performance and stability improvements on all platforms.
5088 2013-07-08: Version 3.20.3
5090 Performance and stability improvements on all platforms.
5093 2013-07-05: Version 3.20.2
5095 Remove deprecated heap profiler methods from V8 public API
5097 Mark i18n functions as native and set proper names
5100 Correctly report stack trace when current function is FunctionApply
5101 builtin (Chromium issue 252097)
5103 Enable GDBJIT interface for standalone by default.
5105 Fix debuggersupport=off build. (issue 2754)
5107 Introduce -m64 flag for making x64 when the default gcc compiler is for
5110 Performance and stability improvements on all platforms.
5113 2013-07-02: Version 3.20.1
5115 Implemented WeakMap.prototype.clear function. (issue 2753)
5117 Ensure CheckInitialized is present independent of define.
5118 (Chromium issue 255779)
5120 Performance and stability improvements on all platforms.
5123 2013-06-28: Version 3.20.0
5125 Migrated several tests from blink to V8 repository.
5127 Allowed users of the V8 API to distinguish between unset and undefined
5128 HiddenValues (issue 2746).
5130 Deprecated old style callbacks in the V8 API.
5132 Turned on parallel recompilation.
5134 Performance and stability improvements on all platforms.
5137 2013-06-18: Version 3.19.18
5139 Fixed read-only attribute of Function.length in strict mode.
5142 Fixed Runtime_SetProperty to properly handle OOM failures
5143 (Chromium issue 249873)
5145 Emit deprecated check for constant function transitions.
5146 (Chromium issue 250609)
5148 Made MathFloorOfDiv optimization trigger more often
5151 Make more GCs in idle notification handler.
5152 (Chromium issue 241815)
5154 Increased default type info threshold.
5157 Performance and stability improvements on all platforms.
5160 2013-06-14: Version 3.19.16
5162 Performance and stability improvements on all platforms.
5165 2013-06-13: Version 3.19.15
5167 Performance and stability improvements on all platforms.
5170 2013-06-13: Version 3.19.14
5172 Fixed crashes when calling new Array(a) with a single argument that
5173 could result in creating a holey array with a packed elements kind.
5174 (Chromium issue 245480)
5176 Fixed issues in parallel compilation.
5177 (Chromium issue 248076)
5179 Performance and stability improvements on all platforms.
5182 2013-06-11: Version 3.19.13
5184 Performance and stability improvements on all platforms.
5187 2013-06-10: Version 3.19.12
5189 Fixed arguments array access. (Chromium issue 247303)
5191 Fixed bug in LookupForWrite. (Chromium issue 242332)
5193 Performance and stability improvements on all platforms.
5196 2013-06-07: Version 3.19.11
5198 Performance and stability improvements on all platforms.
5201 2013-06-06: Version 3.19.10
5203 Performance and stability improvements on all platforms.
5206 2013-06-05: Version 3.19.9
5208 Implemented Load IC support for loading properties from primitive
5209 values to avoid perpetual soft deopts. (Chromium issue 242512)
5211 Implemented Freeing of PerThreadAssertData when possible to avoid
5212 memory leak. (Chromium issue 246567)
5214 Removed V8_USE_OLD_STYLE_PERSISTENT_HANDLE_VISITORS.
5216 Performance and stability improvements on all platforms.
5219 2013-06-03: Version 3.19.8
5221 Fixed bug with inlining 'Array' function. (Chromium issue 244461)
5223 Fixed initialization of literal objects. (Chromium issue 245424)
5225 Fixed function name inferred inside closures. (Chromium issue 224884)
5227 Performance and stability improvements on all platforms.
5230 2013-05-31: Version 3.19.7
5232 Added support for //# sourceURL similar to deprecated //@ sourceURL one.
5235 Made sure IfBuilder::Return clears the current block.
5236 (Chromium issue 243868)
5238 Fixed two CPU profiler tests on ARM and MIPS simulators
5241 Fixed idle incremental GC for large objects.
5242 (Chromium issue 241815)
5244 Disabled --optimize-constructed-arrays due to crashes
5245 (Chromium issue 244461)
5247 Performance and stability improvements on all platforms.
5250 2013-05-28: Version 3.19.6
5252 Fixed IfBuilder::Deopt to clear the current block
5253 (Chromium issue 243868).
5255 Performance and stability improvements on all platforms.
5258 2013-05-27: Version 3.19.5
5260 Reset regexp parser flag after scanning ahead for capture groups.
5263 Removed flakiness in test-cpu-profiler/SampleWhenFrameIsNotSetup.
5266 Performance and stability improvements on all platforms.
5269 2013-05-24: Version 3.19.4
5271 Fixed edge case in stack trace formatting. (Chromium issue 237617)
5273 Fixed embedded new-space pointer in LCmpObjectEqAndBranch. (Chromium
5276 Made Object.freeze fast (issue 1858, Chromium issue 115960)
5278 Fixed bogus deopt in BuildEmitDeepCopy for holey arrays. (Chromium issue
5281 Performance and stability improvements on all platforms.
5284 2013-05-22: Version 3.19.3
5286 Performance and stability improvements on all platforms.
5289 2013-05-17: Version 3.19.2
5291 Fill in one-word-fillers for the unused property fields
5292 (Chromium issue 240056).
5294 Removed use_system_v8 logic from the mainline gyp file
5295 (Chromium issue 226860).
5297 Skip CPU profiler samples where top function's stack frame is not
5298 set up properly (issue 2628).
5300 Performance and stability improvements on all platforms.
5303 2013-05-14: Version 3.19.1
5305 Fixed missing hole check for loads from Smi arrays when all uses are
5306 changes (Chromium issue 233737)
5308 Performance and stability improvements on all platforms.
5311 2013-05-10: Version 3.19.0
5313 Deprecated Context::New which returns Persistent.
5315 Added Persistent<T>::Reset which disposes the handle and redirects it to
5316 point to another object.
5318 Deprecated WriteAscii and MayContainNonAscii.
5320 Exposed AssertNoAllocation to API.
5322 Performance and stability improvements on all platforms.
5325 2013-04-30: Version 3.18.5
5327 Allowed setting debugger breakpoints on CompareNilICs (issue 2660)
5329 Fixed beyond-heap load on x64 Crankshafted StringCharFromCode
5330 (Chromium issue 235311)
5332 Change 'Parse error' to three more informative messages.
5333 (Chromium issue 2636)
5335 Performance and stability improvements on all platforms.
5338 2013-04-26: Version 3.18.4
5340 Added a preliminary API for ES6 ArrayBuffers
5342 Replaced qsort with std::sort. (Chromium issue 2639)
5344 Performance and stability improvements on all platforms.
5347 2013-04-24: Version 3.18.3
5349 Exposed the GC under a name that is less collision prone than window.gc.
5352 Do not emit double values at their use sites. (Chromium issue 234101)
5354 Added methods to allow resuming execution after calling
5355 TerminateExecution(). (issue 2361)
5357 Performance and stability improvements on all platforms.
5360 2013-04-22: Version 3.18.2
5362 OS::MemMove/OS::MemCopy: Don't call through to generated code when size
5363 == 0 to avoid prefetching invalid memory (Chromium issue 233500)
5365 Removed heap snapshot size limit. (Chromium issue 232305)
5367 Performance and stability improvements on all platforms.
5370 2013-04-18: Version 3.18.1
5372 Removed SCons related files and deprecated test suite configurations.
5374 Improved handling of unary plus (issue 2527).
5376 Performance and stability improvements on all platforms.
5379 2013-04-17: Version 3.18.0
5381 Enabled pretenuring of fast literals in high promotion mode.
5383 Removed preparser library; link preparser executable against full V8.
5385 Fixed set-up of intrinsic's 'constructor' properties.
5386 (Chromium issue 229445)
5388 ES6 symbols: extended V8 API to support symbols (issue 2158).
5390 Removed ARM support for VFP2.
5392 Made __proto__ a real JavaScript accessor property.
5393 (issue 1949 and issue 2606)
5395 Performance and stability improvements on all platforms.
5398 2013-04-04: Version 3.17.16
5400 Stack trace API: poison stack frames below the first strict mode frame.
5403 Made Isolate::GetHeapStatistics robust against half-initialized
5404 isolates (Chromium issue 2591).
5406 Finished implementation of ES6 symbols aka. private names (issue 2158).
5408 Performance and stability improvements on all platforms.
5411 2013-03-21: Version 3.17.15
5413 Rolled back API changes to maintain compatibility with older
5414 3.17.x versions of V8.
5416 Disable zapping of global handles in release mode.
5418 Always mark the entire valid prefix of the descriptor array.
5419 (Chromium issue 196331)
5421 Use internal memcpy for CopyWords and when copying code.
5422 (Chromium issue 196330)
5424 Performance and stability improvements on all platforms.
5427 2013-03-20: Version 3.17.14
5429 Use internal memcpy when initializing code objects.
5430 (Chromium issue 196330)
5432 Disabled weak embedded maps because of crashes.
5433 (Chromium issues 172489, 217858)
5435 Performance and stability improvements on all platforms.
5438 2013-03-19: Version 3.17.13
5440 Turned Flags into a uint32_t typedef (Chromium issue 194749).
5442 Performance and stability improvements on all platforms.
5445 2013-03-18: Version 3.17.12
5447 Unified kMaxArguments with number of bits used to encode it.
5448 (Chromium issue 211741)
5450 Fixed detection of |handle_smi| case in
5451 HOptimizedGraphBuilder::HandlePolymorphicCallNamed.
5452 (Chromium issue 196583)
5454 Performance and stability improvements on all platforms.
5457 2013-03-15: Version 3.17.11
5459 Added a version of the v8::HandleScope constructor with an v8::Isolate
5460 parameter and made AdjustAmountOfExternalAllocatedMemory an instance
5461 method of v8::Isolate.
5464 Fixed two register allocator bugs (off-by-one error/failure
5465 propagation). (issue 2576)
5467 Fixed huge heap snapshot when a heavily shared context has many
5468 variables. (Chromium issue 145687)
5470 Performance and stability improvements on all platforms.
5473 2013-03-13: Version 3.17.10
5475 Fixed heap snapshot creation for Harmony collections. (issue 2535)
5477 Fixed register allocation corner case. (Chromium issue 177883)
5479 Performance and stability improvements on all platforms.
5482 2013-03-08: Version 3.17.9
5484 Restored Function()'s expected string representation. (issue 2470)
5486 Enabled deprecatations (again). (issue 2487)
5488 Avoid bool to Oddball conversions by being lazy. (issue 2491)
5490 Added %p option to --logfile.
5492 Hardened Function()'s parsing of function literals. (issue 2470)
5494 ES6 symbols: Refine test for getOwnPropertyNames. (issue 2158)
5496 Performance and stability improvements on all platforms.
5499 2013-03-07: Version 3.17.8
5501 Added missing license headers. (Chromium issue 98597)
5503 Inserted missing type cast in JSON.stringify. (issue 2570)
5505 Reverted "Send SIGPROF signals on the profiler event processor thread"
5508 Fixed Array.length, String.length and Function.prototype LoadICs on x64.
5511 ES6 symbols: filter symbols form for-in loops and Object.keys.
5514 Properly handle misses for StoreArrayLengthStub on ia32 and x64
5517 Fixed x32 handling of Atomic64. (Chromium issue chromium-os:36866)
5519 Removed "library" variable from standalone.gypi. (Chromium issue 111541)
5521 Fixed HCheckSmiOrInt <-> HBoundsCheck interaction wrt. representations.
5524 Enabled zapping of disposed global handles in release mode.
5525 (Chromium issue 176056)
5527 Added workaround for redefinition of __proto__ property. (issue 2565)
5529 ES6 symbols: Allow symbols as property names. (issue 2158)
5531 Performance and stability improvements on all platforms.
5534 2013-03-04: Version 3.17.7
5536 Limited recursion in regexp compilation by a budget.
5537 (Chromium issue 178790)
5539 ES6 symbols: Implemented Symbol intrinsic and basic functionality
5542 Performance and stability improvements on all platforms.
5545 2013-02-28: Version 3.17.6
5547 Fixed materialization of arguments objects with unknown values.
5548 (Chromium issue 163530)
5550 Set default number of sweeper threads to at most four.
5552 Performance and stability improvements on all platforms.
5555 2013-02-27: Version 3.17.5
5557 Made __proto__ a foreign callback on Object.prototype.
5558 (issue 621, issue 1949 and issue 2441)
5560 Performance and stability improvements on all platforms.
5563 2013-02-25: Version 3.17.4
5565 Performance and stability improvements on all platforms.
5568 2013-02-21: Version 3.17.3
5570 Performance and stability improvements on all platforms.
5573 2013-02-19: Version 3.17.2
5575 Removed bogus check for TOP register in deoptimizer.
5576 (Chromium issue 176943)
5578 Made the Isolate parameter mandatory for internal HandleScopes.
5581 Fixed f.apply() optimization when declared arguments are mutated.
5584 Performance and stability improvements on all platforms.
5587 2013-02-14: Version 3.17.1
5589 Performance and stability improvements on all platforms.
5592 2013-02-13: Version 3.17.0
5594 Enabled parallel sweeping.
5596 Don't try to unlink instructions twice during GVN
5597 (Chromium issue 175141)
5599 Fixed code flusher disabling while marking incrementally.
5600 (Chromium issue 173458, 168582)
5602 Don't use TLS for space iterators.
5605 Added new GetHeapStatistics API entry and deprecated old one.
5607 Fixed DoubleStackSlot-to-DoubleStackSlot moves on ia32. Unified
5608 platform-independent code.
5609 (Chromium issue 173907)
5611 Added --trace-array-abuse to help find OOB accesses.
5613 Performance and stability improvements on all platforms.
5616 2013-02-06: Version 3.16.14
5618 Performance and stability improvements on all platforms.
5621 2013-02-04: Version 3.16.13
5623 Tagged stubs that rely on instance types as MEGAMORPHIC.
5624 (Chromium issue 173974)
5626 Fixed clearing of dead dependent codes and verifing of weak
5627 embedded maps on full GC. (Chromium issue 172488,172489)
5629 Made the arm port build cleanly with Clang.
5631 Performance and stability improvements on all platforms.
5634 2013-01-31: Version 3.16.12
5636 Performance and stability improvements on all platforms.
5639 2013-01-30: Version 3.16.11
5641 Put making embedded maps in optimized code weak behind a flag.
5642 (Chromium issue 172488,172489)
5644 Performance and stability improvements on all platforms.
5647 2013-01-25: Version 3.16.10
5649 Avoid excessive memory usage during redundant phi elimination.
5652 Fixed additional spec violations wrt RegExp.lastIndex.
5655 Added Isolate parameter to Persistent class.
5658 Performance and stability improvements on all platforms.
5661 2013-01-24: Version 3.16.9
5663 Made embedded maps in optimized code weak.
5666 Fixed corner case when JSFunction is evicted from flusher.
5667 (Chromium issue 168801)
5669 Correctly set kCanBeDivByZero flag for HMathFloorOfDiv.
5670 (Chromium issue 171641)
5672 Performance and stability improvements on all platforms.
5675 2013-01-23: Version 3.16.8
5677 Correctly reset lastIndex in an RegExp object.
5678 (Chromium issue 170856)
5680 Added a workaround for Windows compilation problems related to V8EXPORT.
5683 tools/run-tests.py: shlex.split() the value of --command-prefix
5684 (Chromium issue 171553)
5686 Fixed pattern detection for replacing shifts by rotation.
5687 (Chromium issue 2499)
5689 Performance and stability improvements on all platforms.
5692 2013-01-21: Version 3.16.7
5694 Removed <(library) usage from v8.gyp.
5695 (Chromium issue 111541)
5697 Fixed out of bounds memory access in TestJSArrayForAllocationSiteInfo.
5698 (Chromium issue 169928)
5700 Performance and stability improvements on all platforms.
5703 2013-01-18: Version 3.16.6
5705 Made the Isolate parameter mandatory in Locker and Unlocker classes.
5708 Avoid pointer underflow in CopyCharsUnsigned.
5711 Generate shim headers when using system v8.
5712 (Chromium issue 165264)
5714 Fixed arguments materialization for inlined apply().
5717 Sync'ed laziness between BuildFunctionInfo and MakeFunctionInfo.
5718 (Chromium issue 147497)
5720 Added sanity check to CodeFlusher::AddCandidate.
5721 (Chromium issue 169209)
5723 Performance and stability improvements on all platforms.
5726 2013-01-15: Version 3.16.5
5728 Removed deprecated functions from V8's external API.
5730 Prepared API for WebKit use of Latin-1.
5732 Fixed V8 issue 2486.
5734 Fixed Chromium issue 169723.
5736 Performance and stability improvements on all platforms.
5739 2013-01-11: Version 3.16.4
5741 Fixed Chromium issues 168545 and 169209.
5743 Performance and stability improvements on all platforms.
5746 2013-01-09: Version 3.16.3
5748 Improved GC performance when moving parts of a FixedArray (issue 2452).
5750 Enabled readline on d8 while building a shared lib (issue 1781).
5752 Fixed missing exception check in typed array constructor
5753 (Chromium issue 168545).
5755 Check for read-only-ness when preparing for array sort (issue 2419).
5757 Performance and stability improvements on all platforms.
5760 2013-01-04: Version 3.16.2
5762 Added Makefile options to build for the Raspberry Pi (armv7=0,
5765 Performance and stability improvements on all platforms.
5768 2012-12-27: Version 3.16.1
5770 Fixed x64 MathMinMax for negative untagged int32 arguments.
5771 (Chromium issue 164442)
5773 Fixed FloatingPointHelper::CheckSSE2OperandIsInt32.
5776 Performance and stability improvements on all platforms.
5779 2012-12-21: Version 3.16.0
5781 V8_Fatal now prints C++ stack trace in debug mode.
5783 Added HTML-based tick processor.
5785 Continued implementation of Object.observe (V8 issue 2409).
5787 Fixed V8 issues 2243, 2340, 2393, 2399, 2457.
5789 Fixed Chromium issues 125308, 165637, 166379, 166553.
5791 Performance and stability improvements on all platforms.
5794 2012-12-10: Version 3.15.11
5796 Define CAN_USE_VFP2/3_INSTRUCTIONS based on arm_neon and arm_fpu GYP
5799 Performance and stability improvements on all platforms.
5802 2012-12-07: Version 3.15.10
5804 Enabled optimisation of functions inside eval. (issue 2315)
5806 Fixed spec violations in methods of Number.prototype. (issue 2443)
5808 Added GCTracer metrics for a scavenger GC for DOM wrappers.
5810 Performance and stability improvements on all platforms.
5813 2012-12-06: Version 3.15.9
5815 Fixed candidate eviction in code flusher.
5816 (Chromium issue 159140)
5818 Iterate through all arguments for side effects in Math.min/max.
5821 Fixed spec violations related to regexp.lastIndex
5822 (issue 2437, issue 2438)
5824 Performance and stability improvements on all platforms.
5827 2012-12-04: Version 3.15.8
5829 Enforced stack allocation of TryCatch blocks.
5830 (issue 2166,chromium:152389)
5832 Fixed external exceptions in external try-catch handlers.
5835 Activated incremental code flushing by default.
5837 Performance and stability improvements on all platforms.
5840 2012-11-30: Version 3.15.7
5842 Activated code aging by default.
5844 Included more information in --prof log.
5846 Removed eager sweeping for lazy swept spaces. Try to find in
5847 SlowAllocateRaw a bounded number of times a big enough memory slot.
5850 Performance and stability improvements on all platforms.
5853 2012-11-26: Version 3.15.6
5855 Ensure double arrays are filled with holes when extended from
5856 variations of empty arrays. (Chromium issue 162085)
5858 Performance and stability improvements on all platforms.
5861 2012-11-23: Version 3.15.5
5863 Fixed JSON.stringify for objects with interceptor handlers.
5864 (Chromium issue 161028)
5866 Fixed corner case in x64 compare stubs. (issue 2416)
5868 Performance and stability improvements on all platforms.
5871 2012-11-16: Version 3.15.4
5873 Fixed Array.prototype.join evaluation order. (issue 2263)
5875 Perform CPU sampling by CPU sampling thread only iff processing thread
5876 is not running. (issue 2364)
5878 When using an Object as a set in Object.getOwnPropertyNames, null out
5879 the proto. (issue 2410)
5881 Disabled EXTRA_CHECKS in Release build.
5883 Heap explorer: Show representation of strings.
5885 Removed 'type' and 'arguments' properties from Error object.
5888 Added atomics implementation for ThreadSanitizer v2.
5889 (Chromium issue 128314)
5891 Fixed LiveEdit crashes when object/array literal is added. (issue 2368)
5893 Performance and stability improvements on all platforms.
5896 2012-11-13: Version 3.15.3
5898 Changed sample shell to send non-JS output (e.g. errors) to stderr
5901 Correctly check for stack overflow even when interrupt is pending.
5904 Collect stack trace on stack overflow. (issue 2394)
5906 Performance and stability improvements on all platforms.
5909 2012-11-12: Version 3.15.2
5911 Function::GetScriptOrigin supplies sourceURL when script name is
5912 not available. (Chromium issue 159413)
5914 Made formatting error message side-effect-free. (issue 2398)
5916 Fixed length check in JSON.stringify. (Chromium issue 160010)
5918 ES6: Added support for Set and Map clear method (issue 2400)
5920 Fixed slack tracking when instance prototype changes.
5921 (Chromium issue 157019)
5923 Fixed disabling of code flusher while marking. (Chromium issue 159140)
5925 Added a test case for object grouping in a scavenger GC (issue 2077)
5927 Support shared library build of Android for v8.
5928 (Chromium issue 158821)
5930 ES6: Added support for size to Set and Map (issue 2395)
5932 Performance and stability improvements on all platforms.
5935 2012-11-06: Version 3.15.1
5937 Put incremental code flushing behind a flag. (Chromium issue 159140)
5939 Performance and stability improvements on all platforms.
5942 2012-10-31: Version 3.15.0
5944 Loosened aligned code target requirement on ARM (issue 2380)
5946 Fixed JSON.parse to treat leading zeros correctly.
5947 (Chromium issue 158185)
5949 Performance and stability improvements on all platforms.
5952 2012-10-22: Version 3.14.5
5954 Killed off the SCons based build.
5956 Added a faster API for creating v8::Integer objects.
5958 Speeded up function deoptimization by avoiding quadratic pass over
5959 optimized function list. (Chromium issue 155270)
5961 Always invoke the default Array.sort functions from builtin functions.
5964 Reverted recent CPU profiler changes because they broke --prof.
5967 Switched code flushing to use different JSFunction field.
5970 Performance and stability improvements on all platforms.
5973 2012-10-15: Version 3.14.4
5975 Allow evals for debugger even if they are prohibited in the debugee
5976 context. (Chromium issue 154733)
5978 Enabled --verify-heap in release mode (issue 2120)
5980 Performance and stability improvements on all platforms.
5983 2012-10-11: Version 3.14.3
5985 Use native context to retrieve ErrorMessageForCodeGenerationFromStrings
5986 (Chromium issue 155076).
5988 Bumped variable limit further to 2^17 (Chromium issue 151625).
5990 Performance and stability improvements on all platforms.
5993 2012-10-10: Version 3.14.2
5995 ARM: allowed VFP3 instructions when hardfloat is enabled.
5996 (Chromium issue 152506)
5998 Fixed instance_descriptors() and PushStackTraceAndDie regressions.
5999 (Chromium issue 151749)
6001 Made GDBJIT interface compile again. (issue 1804)
6003 Fixed Accessors::FunctionGetPrototype's proto chain traversal.
6004 (Chromium issue 143967)
6006 Made sure that names of temporaries do not clash with real variables.
6009 Rejected local module declarations. (Chromium issue 150628)
6011 Rejected uses of lexical for-loop variable on the RHS. (issue 2322)
6013 Fixed slot recording of code target patches.
6014 (Chromium issue 152615,chromium:144230)
6016 Changed the Android makefile to use GCC 4.6 instead of GCC 4.4.3.
6018 Performance and stability improvements on all platforms.
6021 2012-10-01: Version 3.14.1
6023 Don't set -m32 flag when compiling with Android ARM compiler.
6024 (Chromium issue 143889)
6026 Restore the descriptor array before returning allocation failure.
6027 (Chromium issue 151750)
6029 Lowered kMaxVirtualRegisters (v8 issue 2139, Chromium issues 123822 and
6032 Pull more recent gyp in 'make dependencies'.
6034 Made sure that the generic KeyedStoreIC changes length and element_kind
6035 atomically (issue 2346).
6037 Bumped number of allowed variables per scope to 65535, to address GWT.
6038 (Chromium issue 151625)
6040 Support sourceURL for dynamically inserted scripts (issue 2342).
6042 Performance and stability improvements on all platforms.
6045 2012-09-20: Version 3.14.0
6047 Fixed missing slot recording during clearing of CallICs.
6048 (Chromium issue 144230)
6050 Fixed LBoundsCheck on x64 to handle (stack slot + constant) correctly.
6051 (Chromium issue 150729)
6053 Fixed minus zero test. (Issue 2133)
6055 Fixed setting array length to zero for slow elements.
6056 (Chromium issue 146910)
6058 Fixed lost arguments dropping in HLeaveInlined.
6059 (Chromium issue 150545)
6061 Fixed casting error for receiver of interceptors.
6062 (Chromium issue 149912)
6064 Throw a more descriptive exception when blocking 'eval' via CSP.
6065 (Chromium issue 140191)
6067 Fixed debugger's eval when close to stack overflow. (issue 2318)
6069 Added checks to live edit. (issue 2297)
6071 Switched on code compaction on incremental GCs.
6073 Fixed caching of optimized code for OSR. (issue 2326)
6075 Not mask exception thrown by toString in String::UtfValue etc.
6078 Fixed API check for length of external arrays. (Chromium issue 148896)
6080 Ensure correct enumeration indices in the dict (Chromium issue 148376)
6082 Correctly initialize regexp global cache. (Chromium issue 148378)
6084 Fixed arguments object materialization during deopt. (issue 2261)
6086 Introduced new API to expose external string resource regardless of
6089 Fixed CHECK failure in LCodeGen::DoWrapReceiver when
6090 --deopt-every-n-times flag is present
6091 (Chromium issue 148389)
6093 Fixed edge case of extension with NULL as source string.
6094 (Chromium issue 144649)
6096 Fixed array index dehoisting. (Chromium issue 141395)
6098 Performance and stability improvements on all platforms.
6101 2012-09-11: Version 3.13.7
6103 Enable/disable LiveEdit using the (C++) debug API.
6105 Performance and stability improvements on all platforms.
6108 2012-09-06: Version 3.13.6
6110 Added validity checking to API functions and calls.
6112 Disabled accessor inlining (Chromium issue 134609).
6114 Fixed bug in Math.min/max in optimized code (Chromium issue 145961).
6116 Directly use %ObjectKeys in json stringify (Chromium issue 2312).
6118 Fixed VS2005 build (issue 2313).
6120 Activated fixed ES5 readonly semantics by default.
6122 Added hardfp flag to the Makefile.
6124 Performance and stability improvements on all platforms.
6127 2012-08-29: Version 3.13.5
6129 Release stack trace data after firing Error.stack accessor.
6132 Added a new API V8::SetJitCodeEventHandler to push code name and
6133 location to users such as profilers.
6135 Allocate block-scoped global bindings to global context.
6137 Performance and stability improvements on all platforms.
6140 2012-08-28: Version 3.13.4
6142 Print reason for disabling optimization. Kill --trace-bailout flag.
6144 Provided option to disable full DEBUG build on Android.
6146 Introduced global contexts to represent lexical global scope(s).
6148 Fixed rounding in Uint8ClampedArray setter. (issue 2294)
6150 Performance and stability improvements on all platforms.
6153 2012-08-21: Version 3.13.3
6155 Performance and stability improvements on all platforms.
6158 2012-08-20: Version 3.13.2
6160 Performance and stability improvements on all platforms.
6163 2012-08-16: Version 3.13.1
6165 Performance and stability improvements on all platforms.
6168 2012-08-10: Version 3.13.0
6170 Added histograms for total allocated/live heap size, as well as
6171 allocated size and percentage of total for map and cell space.
6173 Fixed parseInt's octal parsing behavior (ECMA-262 Annex E 15.1.2.2).
6176 Added checks for interceptors to negative lookup code in Crankshaft.
6177 (Chromium issue 140473)
6179 Made incremental marking clear ICs and type feedback cells.
6181 Performance and stability improvements on all platforms.
6184 2012-08-01: Version 3.12.19
6186 Performance and stability improvements on all platforms.
6189 2012-07-30: Version 3.12.18
6191 Forced using bit-pattern for signed zero double. (issue 2239)
6193 Made sure double to int conversion is correct. (issue 2260)
6195 Performance and stability improvements on all platforms.
6198 2012-07-27: Version 3.12.17
6200 Always set the callee's context when calling a function from optimized
6202 (Chromium issue 138887)
6204 Fixed building with GCC 3.x
6207 Improved API calls that return empty handles.
6210 Performance and stability improvements on all platforms.
6213 2012-07-25: Version 3.12.16
6215 Performance and stability improvements on all platforms.
6218 2012-07-24: Version 3.12.15
6220 Added PRESERVE_ASCII_NULL option to String::WriteAscii.
6223 Added dependency to HLoadKeyed* instructions to prevent invalid
6224 hoisting. (Chromium issue 137768)
6226 Enabled building d8 for Android on Mac.
6228 Interpret negative hexadecimal literals as NaN.
6231 Expose counters in javascript when using --track-gc-object-stats.
6233 Enabled building and testing V8 on Android IA.
6235 Added --trace-parse flag to parser.
6237 Performance and stability improvements on all platforms.
6240 2012-07-18: Version 3.12.14
6242 Deactivated optimization of packed arrays.
6243 (Chromium issue 137768)
6245 Fixed broken accessor transition.
6246 (Chromium issue 137689)
6248 Performance and stability improvements on all platforms.
6251 2012-07-17: Version 3.12.13
6253 Fixed missing tagging of stack value in finally block.
6254 (Chromium issue 137496)
6256 Added more support for heap analysis.
6258 Performance and stability improvements on all platforms.
6261 2012-07-16: Version 3.12.12
6263 Added an option to the tickprocessor to specify the directory for lib
6266 Fixed ICs for slow objects with native accessor (Chromium issue 137002).
6268 Fixed transcendental cache on ARM in optimized code (issue 2234).
6270 New heap inspection tools: counters for object sizes and counts,
6271 histograms for external fragmentation.
6273 Incorporated constness into inferred interfaces (in preparation for
6274 handling imports) (issue 1569).
6276 Performance and stability improvements on all platforms.
6279 2012-07-12: Version 3.12.11
6281 Renamed "mips" arch to "mipsel" in the GYP build.
6283 Fixed computation of call targets on prototypes in Crankshaft.
6284 (Chromium issue 125148)
6286 Removed use of __lookupGetter__ when generating stack trace.
6289 Turned on ES 5.2 globals semantics by default.
6290 (issue 1991, Chromium issue 80591)
6292 Synced preparser and parser wrt syntax error in switch..case.
6295 Fixed reporting of octal literals in strict mode when preparsing.
6298 Fixed inline constructors for Harmony Proxy prototypes.
6301 Performance and stability improvements on all platforms.
6304 2012-07-10: Version 3.12.10
6306 Re-enabled and fixed issue with array bounds check elimination
6307 (Chromium issue 132114).
6309 Fixed Debug::Break crash. (Chromium issue 131642)
6311 Added optimizing compiler support for JavaScript getters.
6313 Performance and stability improvements on all platforms.
6316 2012-07-06: Version 3.12.9
6318 Correctly advance the scanner when scanning unicode regexp flag.
6319 (Chromium issue 136084)
6321 Fixed unhandlified code calling Harmony Proxy traps.
6324 Performance and stability improvements on all platforms.
6327 2012-07-05: Version 3.12.8
6329 Implemented TypedArray.set and ArrayBuffer.slice in d8.
6331 Performance and stability improvements on all platforms.
6334 2012-07-03: Version 3.12.7
6336 Fixed lazy compilation for strict eval scopes.
6337 (Chromium issue 135066)
6339 Made MACOSX_DEPLOYMENT_TARGET configurable in GYP.
6342 Report "hidden properties" in heap profiler for properties case.
6345 Activated optimization of packed arrays by default.
6347 Performance and stability improvements on all platforms.
6350 2012-06-29: Version 3.12.6
6352 Cleaned up hardfp ABI detection for ARM (V8 issue 2140).
6354 Extended TypedArray support in d8.
6357 2012-06-28: Version 3.12.5
6359 Fixed lazy parsing heuristics to respect outer scope.
6360 (Chromium issue 135008)
6362 Allow using test-wrapper-gypbuild.py on Windows when no python
6363 interpreter is registered.
6365 Performance and stability improvements on all platforms.
6368 2012-06-27: Version 3.12.4
6370 Removed -fomit-frame-pointer flag from Release builds to make
6371 the stack walkable by TCMalloc (Chromium issue 133723).
6373 Ported r7868 (constant masking) to x64 (issue 1374).
6375 Expose more detailed memory statistics (issue 2201).
6377 Fixed Harmony Maps and WeakMaps for undefined values
6378 (Chromium issue 132744).
6380 Correctly throw reference error in strict mode with ICs disabled
6383 Performance and stability improvements on all platforms.
6386 2012-06-25: Version 3.12.3
6388 Reverted r11835 'Unify promotion and allocation limit computation' due
6389 to V8 Splay performance regression on Mac. (Chromium issue 134183)
6391 Fixed sharing of literal boilerplates for optimized code. (issue 2193)
6393 Performance and stability improvements on all platforms.
6396 2012-06-22: Version 3.12.2
6398 Made near-jump check more strict in LoadNamedFieldPolymorphic on
6399 ia32/x64. (Chromium issue 134055)
6401 Fixed lazy sweeping heuristics to prevent old-space expansion.
6404 Performance and stability improvements on all platforms.
6407 2012-06-21: Version 3.12.1
6409 Performance and stability improvements on all platforms.
6412 2012-06-20: Version 3.12.0
6414 Fixed Chromium issues:
6415 115100, 129628, 131994, 132727, 132741, 132742, 133211
6418 915, 1914, 2034, 2087, 2094, 2134, 2156, 2166, 2172, 2177, 2179, 2185
6420 Added --extra-code flag to mksnapshot to load JS code into the VM
6421 before creating the snapshot.
6423 Support 'restart call frame' command in the debugger.
6425 Performance and stability improvements on all platforms.
6428 2012-06-13: Version 3.11.10
6430 Implemented heap profiler memory usage reporting.
6432 Preserved error message during finally block in try..finally.
6433 (Chromium issue 129171)
6435 Fixed EnsureCanContainElements to properly handle double values.
6438 Improved heuristics to keep objects in fast mode with inherited
6441 Performance and stability improvements on all platforms.
6444 2012-06-06: Version 3.11.9
6446 Implemented ES5-conformant semantics for inherited setters and read-only
6447 properties. Currently behind --es5_readonly flag, because it breaks
6450 Exposed last seen heap object id via v8 public api.
6452 Performance and stability improvements on all platforms.
6455 2012-05-31: Version 3.11.8
6457 Avoid overdeep recursion in regexp where a guarded expression with a
6458 minimum repetition count is inside another quantifier.
6459 (Chromium issue 129926)
6461 Fixed missing write barrier in store field stub.
6462 (issues 2143, 1465, Chromium issue 129355)
6464 Proxies: Fixed receiver for setters inherited from proxies.
6465 Proxies: Fixed ToStringArray function so that it does not reject some
6469 Performance and stability improvements on all platforms.
6472 2012-05-29: Version 3.11.7
6474 Get better function names in stack traces.
6476 Performance and stability improvements on all platforms.
6479 2012-05-24: Version 3.11.6
6481 Fixed RegExp.prototype.toString for incompatible receivers
6484 Performance and stability improvements on all platforms.
6487 2012-05-23: Version 3.11.5
6489 Performance and stability improvements on all platforms.
6492 2012-05-22: Version 3.11.4
6494 Some cleanup to common.gypi. This fixes some host/target combinations
6495 that weren't working in the Make build on Mac.
6497 Handle EINTR in socket functions and continue incomplete sends.
6500 Fixed python deprecations. (issue 1391)
6502 Made socket send and receive more robust and return 0 on failure.
6503 (Chromium issue 15719)
6505 Fixed GCC 4.7 (C++11) compilation. (issue 2136)
6507 Set '-m32' option for host and target platforms
6509 Performance and stability improvements on all platforms.
6512 2012-05-18: Version 3.11.3
6514 Disable optimization for functions that have scopes that cannot be
6515 reconstructed from the context chain. (issue 2071)
6517 Define V8_EXPORT to nothing for clients of v8. (Chromium issue 90078)
6519 Correctly check for native error objects. (Chromium issue 2138)
6521 Performance and stability improvements on all platforms.
6524 2012-05-16: Version 3.11.2
6526 Revert r11496. (Chromium issue 128146)
6528 Implement map collection for incremental marking. (issue 1465)
6530 Add toString method to CallSite (which describes a frame of the
6534 2012-05-15: Version 3.11.1
6536 Added a readbuffer function to d8 that reads a file into an ArrayBuffer.
6538 Fix freebsd build. (V8 issue 2126)
6540 Performance and stability improvements on all platforms.
6543 2012-05-11: Version 3.11.0
6545 Fixed compose-discard crasher from r11524 (issue 2123).
6547 Activated new global semantics by default. Global variables can
6548 now shadow properties of the global object (ES5.1 erratum).
6550 Properly set ElementsKind of empty FAST_DOUBLE_ELEMENTS arrays when
6551 transitioning (Chromium issue 117409).
6553 Made Error.prototype.name writable again, as required by the spec and
6554 the web (Chromium issue 69187).
6556 Implemented map collection with incremental marking (issue 1465).
6558 Regexp: Fixed overflow in min-match-length calculation
6559 (Chromium issue 126412).
6561 MIPS: Fixed illegal instruction use on Loongson in code for
6562 Math.random() (issue 2115).
6564 Fixed crash bug in VisitChoice (Chromium issue 126272).
6566 Fixed unsigned-Smi check in MappedArgumentsLookup
6567 (Chromium issue 126414).
6569 Fixed LiveEdit for function with no locals (issue 825).
6571 Fixed register clobbering in LoadIC for interceptors
6572 (Chromium issue 125988).
6574 Implemented clearing of CompareICs (issue 2102).
6576 Performance and stability improvements on all platforms.
6579 2012-05-03: Version 3.10.8
6581 Enabled MIPS cross-compilation.
6583 Ensured reload of elements pointer in StoreFastDoubleElement stub.
6584 (Chromium issue 125515)
6586 Fixed corner cases in truncation behavior when storing to
6587 TypedArrays. (issue 2110)
6589 Fixed failure to properly recognize and report out-of-memory
6590 conditions when allocating code space pages. (Chromium issue
6593 Fixed idle notifications to perform a round of incremental GCs
6594 after context disposal. (issue 2107)
6596 Fixed preparser for try statement. (issue 2109)
6598 Performance and stability improvements on all platforms.
6601 2012-04-30: Version 3.10.7
6603 Performance and stability improvements on all platforms.
6606 2012-04-26: Version 3.10.6
6608 Fixed some bugs in accessing details of the last regexp match.
6610 Fixed source property of empty RegExp objects. (issue 1982)
6612 Enabled inlining some V8 API functions.
6614 Performance and stability improvements on all platforms.
6617 2012-04-23: Version 3.10.5
6619 Put new global var semantics behind a flag until WebKit tests are
6622 Enabled stepping into callback passed to builtins.
6623 (Chromium issue 109564)
6625 Performance and stability improvements on all platforms.
6628 2012-04-19: Version 3.10.4
6630 Fixed issues when stressing compaction with WeakMaps.
6632 Fixed missing GVN flag for new-space promotion. (Chromium issue 123919)
6634 Simplify invocation sequence at monomorphic function invocation sites.
6637 Performance and stability improvements on all platforms.
6640 2012-04-17: Version 3.10.3
6642 Fixed several bugs in heap profiles (including issue 2078).
6644 Throw syntax errors on illegal escape sequences.
6646 Implemented rudimentary module linking (behind --harmony flag)
6648 Implemented ES5 erratum: Global declarations should shadow
6649 inherited properties.
6651 Made handling of const more consistent when combined with 'eval'
6654 Fixed V8 on MinGW-x64 (issue 2026).
6656 Performance and stability improvements on all platforms.
6659 2012-04-13: Version 3.10.2
6661 Fixed native ARM build (issues 1744, 539)
6663 Return LOOKUP variable instead of CONTEXT for non-context allocated
6664 outer scope parameters (Chromium issue 119609).
6666 Fixed regular and ElementsKind transitions interfering with each other
6667 (Chromium issue 122271).
6669 Improved performance of keyed loads/stores which have a HeapNumber
6670 index (issues 1388, 1295).
6672 Fixed WeakMap processing for evacuation candidates (issue 2060).
6674 Bailout on possible direct eval calls (Chromium issue 122681).
6676 Do not assume that names of function expressions are context-allocated
6679 Performance and stability improvements on all platforms.
6682 2012-04-10: Version 3.10.1
6684 Fixed bug with arguments object in inlined functions (issue 2045).
6686 Fixed performance bug with lazy initialization (Chromium issue
6689 Added suppport for Mac OS X 64bit builds with GYP.
6690 (Patch contributed by Filipe David Manana <fdmanana@gmail.com>)
6692 Fixed bug with hidden properties (issue 2034).
6694 Fixed a performance bug when reloading pages (Chromium issue 117767,
6697 Fixed bug when optimizing throw in top-level code (issue 2054).
6699 Fixed two bugs with array literals (issue 2055, Chromium issue 121407).
6701 Fixed bug with Math.min/Math.max with NaN inputs (issue 2056).
6703 Fixed a bug with the new runtime profiler (Chromium issue 121147).
6705 Fixed compilation of V8 using uClibc.
6707 Optimized boot-up memory use.
6709 Optimized regular expressions.
6712 2012-03-30: Version 3.10.0
6714 Fixed store IC writability check in strict mode
6715 (Chromium issue 120099).
6717 Resynchronize timers if the Windows system time was changed.
6718 (Chromium issue 119815)
6720 Removed "-mfloat-abi=hard" from host compiler cflags when building for
6722 (https://code.google.com/p/chrome-os-partner/issues/detail?id=8539)
6724 Fixed edge case for case independent regexp character classes
6727 Reset function info counters after context disposal.
6728 (Chromium issue 117767, V8 issue 1902)
6730 Fixed missing write barrier in CopyObjectToObjectElements.
6731 (Chromium issue 119926)
6733 Fixed missing bounds check in HasElementImpl.
6734 (Chromium issue 119925)
6736 Performance and stability improvements on all platforms.
6739 2012-03-23: Version 3.9.24
6741 Activated count-based profiler for ARM.
6743 Fixed use of proxies as f.prototype properties. (issue 2021)
6745 Enabled snapshots on MIPS.
6747 Performance and stability improvements on all platforms.
6750 2012-03-21: Version 3.9.23
6752 Use correct arguments adaptation environment when inlining function
6753 containing arguments. (Issue 2014)
6755 Performance and stability improvements on all platforms.
6758 2012-03-20: Version 3.9.22
6760 Enabled count-based profiler by default.
6762 Implemented a hash based look-up to speed up address checks
6763 in large object space (issue 853).
6765 Performance and stability improvements on all platforms.
6768 2012-03-19: Version 3.9.21
6770 Fixed push-to-trunk script (and re-push).
6772 Added API call that identifies strings that are guaranteed only to
6773 contain ASCII characters.
6776 2012-03-19: Version 3.9.20
6778 Fixed declarations escaping global strict eval. (Issue 1624)
6780 Fixed wrapping of receiver for non-strict callbacks. (Issue 1973)
6782 Fixed function declarations overwriting read-only global properties.
6783 (Chromium issue 115452)
6785 Fixed --use-strict flag in combination with --harmony[-scoping].
6787 Debugger: naive implementation of "step into Function.prototype.bind".
6789 Debugger: added ability to set script source from within OnBeforeCompile
6791 Added flag to always call DebugBreak on abort.
6793 Re-enabled constructor inlining and inline === comparison with boolean
6794 constants. (Issue 2009)
6796 Don't use an explicit s0 in ClampDoubleToUint8. (Issue 2004)
6798 Performance and stability improvements on all platforms.
6801 2012-03-14: Version 3.9.19
6803 Ensure there is a smi check of the receiver for global load and call
6804 ICs (Chromium issue 117794).
6806 Performance and stability improvements on all platforms.
6809 2012-03-13: Version 3.9.18
6811 Ensure consistency of Math.sqrt on Intel platforms.
6813 Remove static initializers in v8. (issue 1859)
6815 Add explicit dependency on v8_base in the GYP-based build.
6817 Performance and stability improvements on all platforms.
6820 2012-03-12: Version 3.9.17
6822 Fixed VFP detection through compiler defines. (issue 1996)
6824 Add Code-related fields to postmortem metadata.
6826 Performance and stability improvements on all platforms.
6829 2012-03-09: Version 3.9.16
6831 Added basic interface inference for modules (behind the --harmony flag).
6833 Added Object.is, Number.isFinite, Number.isNaN.
6835 Updated the Unicode tables to Unicode version 6.1.0.
6837 Performance and stability improvements on all platforms.
6840 2012-03-06: Version 3.9.15
6842 Fix the heap profiler crash caused by memory layout changes between
6845 Fix Error.prototype.toString to throw TypeError. (issue 1980)
6847 Fix double-rounding in strtod for MinGW. (issue 1062)
6849 Fix corrupted snapshot serializaton on ia32. (Chromium issue v8/1985)
6851 Performance and stability improvements on all platforms.
6854 2012-03-01: Version 3.9.14
6856 Performance and stability improvements on all platforms.
6859 2012-02-29: Version 3.9.13
6861 Added code kind check before preparing for OSR. (issue 1900, 115073)
6863 Fixed issue 1802: Pass zone explicitly to zone-allocation on x64 and
6866 Ported string construct stub to x64. (issue 849)
6868 Performance and stability improvements on all platforms.
6871 2012-02-28: Version 3.9.12
6873 Fixed the negative lookup stub to handle deleted entries in a
6874 dictionary. (issue 1964)
6876 Added a new API where the host can supply a callback function. The
6877 callback function can resolve the location of a return address on stack
6878 to the location where a return-address rewriting profiler stashed the
6879 original return address.
6881 Fixed Chromium issue http://crbug.com/115646: When compiling for-in
6882 pass correct context value to the increment instruction.
6884 Fixed issue 1853: Update breakpoints set with partial file name after
6888 2012-02-27: Version 3.9.11
6890 Made 'module' a context-sensitive keyword (V8 issue 1957).
6893 2012-02-24: Version 3.9.10
6895 Fixed V8 issues 1322, 1772 and 1969.
6897 Conformance improvements.
6899 Performance and stability improvements on all platforms.
6902 2012-02-23: Version 3.9.9
6904 Supported fast case for-in in Crankshaft.
6906 Sped up heap snapshot serialization and dominators construction.
6908 Randomized allocation addresses on windows. (Chromium issue 115151)
6910 Fixed compilation with MinGW-w64. (issue 1943)
6912 Fixed incorrect value of assignments to non-extensible properties.
6914 Fixed a crash bug in generated code on ia32.
6916 Performance and stability improvements on all platforms.
6919 2012-02-21: Version 3.9.8
6921 Fixed memory leak and missing #include in StartupDataDecompressor
6924 Renamed static methods to avoid shadowing virtual methods and fix Clang
6925 C++11 compile error.
6927 Fixed sequence of element access in array builtins (issue 1790).
6929 Performance and stability improvements on all platforms.
6932 2012-02-16: Version 3.9.7
6934 Fixed V8 issues 1322, 1878, 1942, 1945 and Chromium issue 113924.
6936 Fixed GCC-4.7 warnings.
6938 Added Navier-Stokes benchmark.
6940 Performance and stability improvements on all platforms.
6943 2012-02-14: Version 3.9.6
6945 Fixed template-related linker error. (issue 1936)
6947 Allowed inlining of functions containing object literals. (issue 1322)
6949 Added --call-graph-size option to tickprocessor. (issue 1937)
6951 Heap Snapshot maximum size limit is too low for really big apps. At the
6952 moment the limit is 256MB. (Chromium issue 113015)
6954 Performance and stability improvements on all platforms.
6957 2012-02-09: Version 3.9.5
6959 Removed unused command line flags.
6961 Performance and stability improvements on all platforms.
6964 2012-02-08: Version 3.9.4
6966 Properly initialize element-transitioning array literals on ARM.
6969 Bug fixes on all platforms.
6972 2012-02-07: Version 3.9.3
6974 When rethrowing an exception, print the stack trace of its original
6975 site instead of rethrow site (Chromium issue 60240).
6977 Increased size of small stacks from 32k to 64k to avoid hitting limits
6978 in Chromium (Chromium issue 112843).
6981 2012-02-06: Version 3.9.2
6983 Added timestamp to --trace-gc output. (issue 1932)
6985 Heap profiler reports implicit references.
6987 Optionally export metadata with libv8 to enable debuggers to inspect V8
6991 2012-02-02: Version 3.9.1
6993 Fixed memory leak in NativeObjectsExplorer::FindOrAddGroupInfo
6994 (Chromium issue 112315).
6996 Fixed a crash in dev tools (Chromium issue 107996).
6998 Added 'dependencies_traverse': 1 to v8 GYP target.
7000 Performance and stability improvements on all platforms.
7003 2012-02-01: Version 3.9.0
7005 Reduced memory use immediately after starting V8.
7007 Stability fixes and performance improvements on all platforms.
7010 2012-01-26: Version 3.8.9
7012 Flush number string cache on GC (issue 1605).
7014 Provide access to function inferred name with
7015 v8::Function::GetInferredName in V8 public API.
7017 Fix building with Clang (issue 1912).
7019 Reduce the space used by the stack for the profiling thread.
7021 Fix misleading documentation of v8::Locker (issue 542).
7023 Introduce readbinary function in d8 to read binary files.
7025 Performance and stability improvements on all platforms.
7028 2012-01-23: Version 3.8.8
7030 Limited number of loop iterations in Heap::ReserveSpace
7031 (Chromium issue 99027).
7033 Fixed solaris build (VirtualMemory) (issue 1761).
7035 Fixed strict vs. non-strict handling of function proxies in
7036 higher-order array and string methods.
7038 Enabled asynchronous remote debugging with d8 (issue 1691).
7040 Stability and performance improvements on all platforms.
7043 2012-01-19: Version 3.8.7
7045 Ensure that LRandom restores rsi after call to the C function on x64.
7046 (Chromium issue http://crbug.com/110509)
7048 Fixing include issues on *bsd when building with scons.
7051 Provide a switch to specify -fno-strict-aliasing
7054 Move WIN32 define from standalone.gypi to common.gypi
7057 Fix corner-case in heap size estimation.
7060 Fix and enable NEW_NON_STRICT_FAST ArgumentsAccess stub on x64.
7063 Performance improvements and bug fixes.
7066 2012-01-16: Version 3.8.6
7068 Add primitive WebGL array support to d8.
7070 Improve heap size estimation (issue 1893).
7072 Hash collision DOS workaround extended from string keys
7075 Provide an API for iterating through all external strings referenced
7078 Adjust position recorded for call expressions. http://crbug.com/109195
7080 Fix GC crash related to instanceof. http://crbug.com/109448
7082 Performance improvements and bug fixes.
7085 2012-01-05: Version 3.8.5
7087 Fix broken test that assumes that no GC can clear the regexp cache (GC
7088 can happen at any time due to Crankshaft).
7090 Fix handling of bogus receivers for Harmony collections. (issue 1884)
7092 Add netbsd support to gyp build.
7094 Determine page size at runtime on posix platforms.
7096 Ensure that store buffer filtering hash sets are cleared after
7097 StoreBuffer::Filter.
7099 Randomize the seed used for string hashing. This helps guard against
7100 CPU-eating DOS attacks against node.js servers. Based on code from
7101 Bert Belder. This version only solves the issue for those that compile
7102 V8 themselves or those that do not use snapshots. A snapshot-based
7103 precompiled V8 will still have predictable string hash codes.
7105 Implement callback when script finishes running in V8 API.
7107 Improve performance of Math.min and Math.max for the case of two
7108 arguments. (issue 1325)
7111 2012-01-02: Version 3.8.4
7113 Performance improvements for large Smi-only arrays.
7115 Fixed InternalArrays construction. (issue 1878)
7118 2011-12-27: Version 3.8.3
7120 Avoid embedding new space objects into code objects in the lithium gap
7121 resolver. (chromium:108296)
7123 Bug fixes and performance optimizations on all platforms.
7126 2011-12-21: Version 3.8.2
7128 Add max optimization flag to v8 gyp build to ensure V8 is always built
7129 fully optimized in Chrome.
7131 MIPS: Bring MIPS to parity with other platforms.
7133 Optimizations and stability improvements on all platforms.
7136 2011-12-19: Version 3.8.1
7138 Fixed GCC 4.7 warnings. Patch from Tobias Burnus.
7140 Stability improvements on all platforms.
7143 2011-12-13: Version 3.8.0
7145 Fixed handling of arrays in DefineOwnProperty. (issue 1756)
7147 Sync parser and preparser on do-while and return statements.
7150 Fixed another corner case for DefineOwnProperty on arrays (issue 1756).
7152 Stability and performance improvements on all platforms.
7155 2011-12-01: Version 3.7.12
7157 Increase tick interval for the android platform.
7159 Fix a bug in the register allocator. (chromium:105112)
7161 Fix handling of recompiling code. (chromium:105375, v8:1782)
7163 Start incremental marking on idle notification. (v8:1458)
7165 Build fixes for various platforms.
7167 Various performance improvements.
7170 2011-11-29: Version 3.7.11
7172 Fixed bug when generating padding to ensure space for lazy
7176 Further reduced pause times due to GC.
7178 Stability and performance improvements on all platforms.
7181 2011-11-23: Version 3.7.10
7183 Set maximum length of FixedArray in terms of elements instead an
7184 absolute number of bytes.
7185 (Chromium issue 103103)
7187 Stability and performance improvements on all platforms.
7190 2011-11-21: Version 3.7.9
7192 Removed exit-time destructors.
7194 Stability and performance improvements on all platforms.
7197 2011-11-17: Version 3.7.8
7199 Removed hidden prototype from builtins, i.e., deleting an overridden
7200 function on builtins will not make the original function reappear.
7202 Added NetBSD support for scons build.
7204 Performance improvements on all platforms.
7207 2011-11-14: Version 3.7.7
7209 Fix missing fast property accessors in heap snapshots.
7213 2011-11-11: Version 3.7.6
7215 Fixed filtering of store buffer for large object pages.
7218 Fixed generated hash function on all platforms.
7221 Fixed Heap::Shrink to ensure that it does not free pages that are
7223 (Chromium issue 100414)
7225 Stability and performance improvements on all platforms.
7228 2011-11-10: Version 3.7.5
7230 Added initial gyp infrastructure for MIPS.
7232 Implemented performance improvements to the incremental garbage
7235 Added optimizations and stability improvements on all platforms.
7238 2011-11-07: Version 3.7.4
7240 Proper "libv8.so.3.7.4" SONAME for Linux shared library (issue 1786).
7242 Fix Harmony sets and maps to allow null and undefined as keys
7243 (still hidden behind --harmony flag) (issue 1622).
7245 Implement VirtualMemory on FreeBSD to fix build (issue 1807).
7247 Enable VFP instructions for Android.
7249 Fix error handling in Date.prototype.toISOString (issue 1792).
7251 Bug fixes and performance improvements for all platforms.
7253 Not officially supported but noteworthy: Crankshaft for MIPS :-)
7256 2011-10-28: Version 3.7.3
7258 Slight deoptimization as a workaround for issue with jslint: Issue
7262 2011-10-27: Version 3.7.2
7264 Fix bug in deoptimization. Known issue with jslint: Issue 1789.
7267 2011-10-26: Version 3.7.1
7269 Achieved 33% speedup in debug-mode tests.
7271 Removed special casing of calls to RegExp test and exec methods with no
7272 argument. Now matches new JSC behaviour. crbug.com/75740.
7274 Return the empty string on cyclic references in toString (ES5
7277 Fixed bug triggered by JSBeautifier. crbug.com/100409.
7279 Made Math.random state per-context instead of per-process (issue 864).
7281 Fixed stack traces to skip native functions.
7283 Make snapshots (new contexts) smaller and faster.
7285 Fixed handling of Function.apply for non-array arguments.
7287 Fixed evaluation order in defineProperties to match FireFox.
7289 Fixed handling of non-object receivers for array builtins,
7292 Multiple fixes to improve compliance with test262.
7294 Fixed compatibility with older Android releases.
7296 Fixed compilation with gcc-4.5.3.
7298 Improved performance of WriteUtf8, issue 1665.
7300 Made native syntax an early error in the preparser.
7302 Fixed issues 793 and 893 relating to Function.prototype.bind.
7304 Improved let, const, Set and Map support and other Harmony features
7305 (behind the --harmony flag).
7307 Changed evaluation order for > and <= to match ES5 instead of ES3.
7309 Bug fixes and performance improvements on all platforms.
7312 2011-10-13: Version 3.7.0
7314 Fixed array handling for Object.defineOwnProperty (ES5 conformance).
7316 Fixed issue 1757 (string slices of external strings).
7318 Fixed issue 1759 (ARM).
7320 Added flag --noclever-optimizations to disable some things that
7321 caused trouble in the past.
7323 Added flag --stress-compaction for testing.
7325 Added flag --harmony to activate all experimental Harmony features.
7328 2011-10-10: Version 3.6.6
7330 Added a GC pause visualization tool.
7332 Added presubmit=no and werror=no flags to Makefile.
7334 ES5/Test262 conformance improvements.
7336 Fixed compilation issues with GCC 4.5.x (issue 1743).
7338 Bug fixes and performance improvements on all platforms.
7341 2011-10-05: Version 3.6.5
7343 New incremental garbage collector.
7345 Removed the hard heap size limit (soft heap size limit is still
7346 700/1400Mbytes by default).
7348 Implemented ES5 generic Array.prototype.toString (Issue 1361).
7350 V8 now allows surrogate pair codes in decodeURIComponent (Issue 1415).
7352 Fixed x64 RegExp start-of-string bug (Issues 1746, 1748).
7354 Fixed propertyIsEnumerable for numeric properties (Issue 1692).
7356 Fixed the MinGW and Windows 2000 builds.
7358 Fixed "Prototype chain is not searched if named property handler does
7359 not set a property" (Issue 1636).
7361 Made the RegExp.prototype object be a RegExp object (Issue 1217).
7363 Disallowed future reserved words as labels in strict mode.
7365 Fixed string split to correctly coerce the separator to a string
7368 API: Added an optional source length field to the Extension
7371 API: Added Debug::DisableAgent to match existing Debug::EnableAgent
7374 Added "native" target to Makefile for the benefit of Linux distros.
7376 Fixed: debugger stops stepping outside evaluate (Issue 1639).
7378 More work on ES-Harmony proxies. Still hidden behind a flag.
7380 Bug fixes and performance improvements on all platforms.
7383 2011-09-15: Version 3.6.4
7385 Fixed d8's broken readline history.
7387 Removed the need for code delete events in CPU profiler (Issue 1466).
7389 Fixed debugger stepping next with trycatch recursion (Issue 1639).
7391 Fixing parallel execution in d8 (with -p) and some memory leaks.
7393 Support for precise stepping in functions compiled before debugging was
7397 2011-09-13: Version 3.6.3
7399 Implemented better support of typed arrays in the d8 shell.
7401 Bug fixes and performance improvements on all platforms.
7404 2011-09-08: Version 3.6.2
7406 Added "dependencies" target to top-level Makefile.
7408 Added ability to turn profiler on/off in d8.
7410 Added "soname_version" parameter to common.gypi, v8.gyp, and Makefile.
7412 Fixed several crash bugs.
7415 2011-09-07: Version 3.6.1
7417 Fixed a bug in abrupt exit from with or catch inside finally.
7419 Fixed possible crash in FixedDoubleArray::Initialize() (Chromium
7422 Fixed a bug in Page::GetRegionMaskForSpan (Chromium issue 94425).
7424 Fixed a few clang warnings (which -Werror treated as errors).
7426 Performance improvements on all platforms.
7429 2011-09-05: Version 3.6.0
7431 Fixed a bug when optimizing named function expression (issue 1647).
7433 Fixed a bug when optimizing f.call.apply (issue 1650).
7435 Made arguments and caller always be null on native functions
7436 (issues 1548 and 1643).
7438 Fixed issue 1648 (cross-compiling x64 targeting ia32).
7440 Fixed issue 371 (d8 printing of strings containing \0).
7442 Fixed order of evaluation in arguments to parseInt (issue 1649).
7444 Fixed a problem with large heap snapshots in Chrome DevTools
7445 (issue 1658, chromium issue 89268).
7447 Upped default maximum heap size from 512M to 700M.
7450 2011-08-31: Version 3.5.10
7452 Added dependency of v8_base on WinSocket2 Windows library in
7458 2011-08-29: Version 3.5.9
7460 Made FromPropertyDescriptor not trigger inherited setters.
7462 Fixed .gyp files to work on the ARM simulator.
7464 Fixed shared library build warnings for MSVS.
7467 2011-08-24: Version 3.5.8
7469 Added V8EXPORT attributes for v8::Array::CheckCast and
7470 v8::Number::CheckCast.
7472 Made a slight API change enabling opting out from null termination
7473 in String::Write*().
7475 Fixed arm build for gcc-4.6.
7478 2011-08-22: Version 3.5.7
7480 Make scanner handle invalid unicode escapes in identifiers correctly.
7482 Make regexp flag parsing stricter.
7484 Fix several memory leaks.
7487 2011-08-17: Version 3.5.6
7489 Fixed issue that could cause crashes when running with --heap-stats.
7491 Fixed compilation on Linux 2.6.9 and older.
7493 Fixed live-object-list to work with isolates.
7495 Fixed memory leaks in zones and isolates.
7497 Fixed a performance regression for TypedArrays on x64.
7499 Stability improvements on all platforms.
7502 2011-08-15: Version 3.5.5
7504 Fixed bugs involving negative zero and the optimizing compiler.
7506 Fixed optimized version of Function.apply(x, arguments). (issue 1592)
7508 Eliminated uses of deprecated ARM instructions.
7510 Sped up Math.floor by using SSE 4.1 roundsd instruction on ia32.
7512 Removed restriction on the size of disassembled code that is printed.
7515 2011-08-10: Version 3.5.4
7517 Added a preliminary implementation of ES Harmony weak maps. Weak
7518 maps can be enabled by the flag --harmony-weakmaps.
7520 Introduced a toplevel Makefile to support GYP-based building. GYP
7521 can be obtained from http://gyp.googlecode.com.
7523 Fixed a bug in the length property of functions created by
7524 Function.prototype.bind.
7526 Reduced malloc heap allocation on process startup.
7528 Several important code generation bug fixes.
7530 Performance improvements on all platforms.
7533 2011-08-03: Version 3.5.3
7535 MIPS: Port of fix to ClassOf check from ARM.
7536 Patch from Paul Lind <plind44@gmail.com>.
7538 Stopped using mprotect on Cygwin.
7539 Avoided uninitialized member warning on gcc 4.3.4
7540 Both patches by Bert Belder.
7542 Bug fixes and performance improvements on all platforms.
7545 2011-08-01: Version 3.5.2
7547 Performance improvements on all platforms.
7550 2011-07-28: Version 3.5.1
7552 Fixed setting the readonly flag on the prototype property using the
7553 API call FunctionTemplate::SetPrototypeAttributes (issue 1539).
7555 Changed the tools/test.py script to use d8 instead of shell for
7558 Fixed crash in ToBooleanStub when GC happens during invocation.
7560 Enabled automatic unboxing of double arrays.
7562 Performance improvements on all platforms.
7565 2011-07-25: Version 3.5.0
7567 Implemented Object.prototype.{hasOwnProperty, propertyIsEnumerable} for
7570 Removed logging to memory support.
7572 Bugfixes and performance work.
7575 2011-07-20: Version 3.4.14
7577 Fix the debugger for strict-mode functions. (Chromium issue 89236)
7579 Add GetPropertyAttribute method for Object in the API. (Patch by
7582 Fix -Wunused-but-set-variable for gcc-4.6 on x64. (Issue 1291)
7585 2011-07-18: Version 3.4.13
7587 Improved debugger support to allow inspection of optimized frames (issue
7590 Fixed a bug in prototype transitions cache clearing introduced by r8165.
7592 Fixed shortcutting bug in HInferRepresentation. Patch by Andy Wingo.
7594 Fixed a memory leak in sample/shell.cc (dispose semaphores).
7596 Simplified HClampToUint8. Patch by Andy Wingo.
7598 Exposed APIs for detecting boxed primitives, native errors. Patch by
7601 Added map check for COW elements to crankshaft array handling code
7604 Sample shell and (a light version of) D8 links against a shared library
7607 Fixed bug in array filter and reduce functions (issue 1559).
7609 Avoid TLS load in AstNode constructor.
7611 Introduced a random entropy source which can optionally be provided at
7612 initialization. (Chromium issue 89462).
7615 2011-07-13: Version 3.4.12
7617 Added --prof profiling option to d8 shell.
7619 Fixed a bug where reading a directory in d8 shell hangs (issue 1533).
7621 Fixed a potential assertion failure in const declarations.
7623 Fixed an assertion failure in descriptor arrays (issue 1526).
7625 Enabled fast thread-local storage by default on supported platforms.
7627 Improved reporting of source position for global variable loads
7631 2011-07-11: Version 3.4.11
7633 Fixed MinGW32 build.
7635 Fixed a GC bug with RegExp code flushing.
7637 Implemented Object.defineProperty for proxies.
7639 Fixed a bug in for/in iteration of arguments objects (issue 1531).
7641 Added debugger support for inspecting optimized frames (issue 1140).
7643 Allowed JSObject::PreventExtensions to work for arguments objects.
7645 Bugfixes and performance work.
7648 2011-07-06: Version 3.4.10
7650 Fixed debugger not breaking on certain "if" statements (issue 1523).
7652 Fixed assertion failure in runtime profiler when running on IA32
7653 without snapshot (issue 1522).
7655 Fixed ABI for API calls on IA32 (for clang compatibility).
7657 Introduced code flushing of RegExp code to free memory used by
7660 Fixed linux-tick-processor built wrong version of v8 (issue 1532).
7662 Fixed assertion failure in v8::TryCache::StackTrace (issue 1529).
7664 Performance improvements on all platforms.
7667 2011-07-04: Version 3.4.9
7669 Added support for debugger inspection of locals in optimized frames
7672 Fixed SConstruct to pass correct defines to samples/preparser when
7673 building with library=shared.
7675 Made date parser handle ES5 Date Time Strings correctly (issue 1498).
7677 Fixed a bug in Object.defineProperty on the arguments object.
7679 Performance improvements on all platforms.
7682 2011-06-29: Version 3.4.8
7684 Ensure 16-byte stack alignment on Solaris (issue 1505).
7686 Fix "illegal access" when calling parseInt with a radix
7687 that is not a smi. (issue 1246).
7690 2011-06-27: Version 3.4.7
7692 Fixed 64-bit build on FreeBSD.
7694 Added API to set the property attributes for the prototype
7695 property on functions created from FunctionTemplates.
7697 Bugfixes and performance work.
7700 2011-06-22: Version 3.4.6
7702 Lowered limit on code space for systems with low memory supply.
7704 Allowed compiling v8_shell with the 'host' toolset (issue 82437).
7706 Extended setBreakpoint API to accept partial script name (issue 1418).
7708 Made multi-line comments not count when deciding whether the '-->'
7709 comment starter is first on a line. This matches Safari.
7711 Made handling of non-array recievers in Array length setter correct
7714 Added ability to heap profiler to iterate over snapshot's node
7718 2011-06-20: Version 3.4.5
7720 Fixed issues 794, 1097, 1215(partial), 1417, 1435, 1472, 1473,
7723 Improved code generation for !0 and !1.
7725 Reduced memory usage for regular expressions with nested qualifiers.
7728 Fixed V8 to count line terminators in multi-line comments.
7729 (Chromium issue 86431)
7731 Fixed disassembler=on option for release-mode builds. (issue 1473)
7733 Performance improvements on all platforms.
7736 2011-06-15: Version 3.4.4
7738 Added snapshot compression support and --stress-opt flag to d8.
7740 Improved performance of try/catch.
7742 Several GYP-related changes: Added support for building Xcode project
7743 files. Make the ARM simulator build with GYP again. Generate Makefiles
7744 for all architectures on Linux.
7746 Fixed Array.prototype.{reduce,reduceRight} to pass undefined as the
7747 receiver for strict mode callbacks. (issue 1436)
7749 Fixed a bug where an array load was incorrectly hoisted by GVN.
7751 Handle 'undefined' correctly when === has been specialized for doubles.
7754 Corrected the limit of local variables in an optimized function from 64
7757 Correctly set ReadOnly flag on indexed properties when using the API Set
7758 method. (issue 1470)
7760 Give the correct error message when Object.isExtensible is called on a
7761 non-object. (issue 1452)
7763 Added GetOwnPropertyNames method for Object in the API. Patch by Peter
7766 Do not redefine properties unneccesarily in seal and freeze. (issue
7769 IsExecutionTerminating has an Isolate parameter now.
7771 Distinguish keyed loads with a symbol key from fast elements loads,
7772 avoiding some useless deoptimizations. (issue 1471)
7775 2011-06-08: Version 3.4.3
7777 Clear the global thread table when an isolate is disposed
7780 Converted time zone name to UTF8 on Windows (issue 1290).
7782 Limited the number of arguments in a function call to 32766
7785 Compress sources of JS libraries in addition to the snapshot.
7787 Fixed a bug in Lithium environment iteration.
7789 Performance improvements on all platforms.
7792 2011-06-06: Version 3.4.2
7794 More work on ES-Harmony proxies. Still hidden behind a flag.
7796 Fixed some crash bugs and improved performance.
7798 Fixed building with gdb debugging support.
7800 Do not install SIGPROF handler until it is needed.
7802 Added DateTimeFormat to i18n API.
7804 Fixed compilation on OpenBSD.
7806 Take the ulimit into account when sizing the heap. OpenBSD users
7807 may still have to increase the default ulimit to run heavy pages in
7811 2011-06-01: Version 3.4.1
7813 Fixed JSON stringify issue with arrays.
7815 Changed calls to JS builtins to be passed undefined when called with
7818 Implemented the set trap for Harmony proxies. Proxies still need to
7819 be enabled with the --harmony-proxies flag.
7822 2011-05-30: Version 3.4.0
7824 Changed calls to undefined property setters to not throw (issue 1355).
7826 Made RegExp objects not callable.
7828 Fixed issues on special case large JSON strings in new json parser
7829 (issues http://crbug.com/83877 and http://crbug.com/84186).
7831 Performance improvements on all platforms.
7834 2011-05-25: Version 3.3.10
7836 Fixed calls of strict mode function with an implicit receiver.
7838 Fixed fast handling of arrays to properly deal with changes to the
7839 Object prototype (issue 1403).
7841 Changed strict mode poison pill to be the same type error function
7844 Fixed a debug crash in arguments object handling (issue 1227).
7846 Fixed a bug in deoptimization on x64 (issue 1404).
7848 Performance improvements and bug fixes on all platforms.
7851 2011-05-23: Version 3.3.9
7853 Added DateTimeFormat class to experimental i18n API.
7855 Extended preparser to give early errors for some strict mode
7858 Removed legacy execScript function from V8.
7860 Extended isolate API with the ability to add embedder-specific
7863 Added basic support for polymorphic loads from JS and external
7866 Fixed bug in handling of switch statements in the optimizing
7870 2011-05-18: Version 3.3.8
7872 Added MarkIndependent to the persistent handle API. Independent
7873 handles are independent of all other persistent handles and can be
7874 garbage collected more frequently.
7876 Implemented the get trap for Harmony proxies. Proxies are enabled
7877 with the --harmony-proxies flag.
7879 Performance improvements and bug fixes on all platforms.
7882 2011-05-16: Version 3.3.7
7884 Updated MIPS infrastructure files.
7886 Performance improvements and bug fixes on all platforms.
7889 2011-05-11: Version 3.3.6
7891 Updated MIPS infrastructure files.
7893 Added method IsCallable for Object to the API.
7894 Patch by Peter Varga.
7897 2011-05-09: Version 3.3.5
7899 Fixed build on FreeBSD. Patch by Akinori MUSHA.
7901 Added check that receiver is JSObject on API calls.
7903 Implemented CallAsConstructor method for Object in the API (Issue 1348).
7904 Patch by Peter Varga.
7906 Added CallAsFunction method to the Object class in the API (Issue 1336).
7907 Patch by Peter Varga.
7909 Added per-isolate locking and unlocking.
7911 Fixed bug in x64 >>> operator (Issue 1359).
7914 2011-05-04: Version 3.3.4
7916 Implemented API to disallow code generation from strings for a context
7919 Fixed bug with whitespaces in parseInt (issue 955).
7921 Fixed bug with == comparison of Date objects (issue 1356).
7923 Added GYP variables for ARM code generation:
7924 v8_can_use_vfp_instructions, v8_can_use_unaligned_accesses
7925 and v8_use_arm_eabi_hardfloat.
7928 2011-05-02: Version 3.3.3
7930 Added support for generating Visual Studio solution and project files
7933 Implemented support for ARM EABI calling convention variation where
7934 floating-point arguments are passed in registers (hardfloat).
7936 Added Object::HasOwnProperty() to the API.
7938 Added support for compressing startup data to reduce binary size. This
7939 includes build time support and an API for the embedder to decompress
7940 the startup data before initializing V8.
7942 Reduced the profiling hooks overhead from >400% to 25% when using
7945 Performance improvements and bug fixes on all platforms.
7948 2011-04-27: Version 3.3.2
7950 Fixed crash bug on ARM with no VFP3 hardware.
7952 Fixed compilation of V8 without debugger support.
7954 Improved performance on JSLint.
7956 Added support Float64 WebGL arrays.
7958 Fixed crash bug in regexp replace.
7961 2011-04-20: Version 3.3.1
7963 Reduced V8 binary size by removing virtual functions from hydrogen.
7965 Fixed crash bug on x64.
7967 Performance improvements on ARM and IA32.
7970 2011-04-18: Version 3.3.0
7972 Fixed bug in floating point rounding in Crankshaft on ARM
7975 Fixed a number of issues with running without VFPv3 support on ARM
7978 Introduced v8Locale.Collator, a partial implementation of Collator
7979 per last ECMAScript meeting + mailing list.
7981 Minor performance improvements and bug fixes.
7984 2011-04-13: Version 3.2.10
7986 Fixed bug in external float arrays on ARM (issue 1323).
7988 Minor performance improvements and bug fixes.
7991 2011-04-11: Version 3.2.9
7993 Removed support for ABI prior to EABI on ARM.
7995 Fixed multiple crash bugs.
7997 Added GCMole to the repository, a simple static analysis tool that
7998 searches for GC-unsafe evaluation order dependent callsites.
8000 Made preparser API be exported in shared libraries.
8002 Fixed multiple issues in EcmaScript 5 strict mode implementation.
8004 Fixed mutable __proto__ property if object is not extensible
8007 Fixed auto suspension of the sampler thread.
8010 2011-04-06: Version 3.2.8
8012 Exposed WebGL typed array constructors in the shell sample.
8014 Performance improvements on all platforms.
8017 2011-04-04: Version 3.2.7
8019 Disabled the original 'classic' V8 code generator. Crankshaft is
8020 now the default on all platforms.
8022 Changed the heap profiler to use more descriptive names.
8024 Performance and stability improvements to isolates on all platforms.
8027 2011-03-30: Version 3.2.6
8029 Fixed xcode build warning in shell.cc (out of order initialization).
8031 Fixed null-pointer dereference in the compiler when running without
8032 SSE3 support (Chromium issue 77654).
8034 Fixed x64 compilation error due to some dead code. (Issue 1286)
8036 Introduced scons target to build the preparser stand-alone example.
8038 Made FreeBSD build and pass all tests.
8041 2011-03-28: Version 3.2.5
8043 Fixed build with Irregexp interpreter (issue 1266).
8045 Added Crankshaft support for external arrays.
8047 Fixed two potential crash bugs.
8050 2011-03-23: Version 3.2.4
8052 Added isolates which allows several V8 instances in the same process.
8053 This is controlled through the new Isolate class in the API.
8055 Implemented more of EcmaScript 5 strict mode.
8057 Reduced the time it takes to make detailed heap snapshot.
8059 Added a number of commands to the ARM simulator and enhanced the ARM
8063 2011-03-17: Version 3.2.3
8065 Fixed a number of crash bugs.
8067 Fixed Array::New(length) to return an array with a length (issue 1256).
8069 Fixed FreeBSD build.
8071 Changed __defineGetter__ to not throw (matching the behavior of Safari).
8073 Implemented more of EcmaScript 5 strict mode.
8075 Improved Crankshaft performance on all platforms.
8078 2011-03-14: Version 3.2.2
8080 Fixed a number of crash and correctness bugs.
8082 Improved Crankshaft performance on all platforms.
8084 Fixed Crankshaft on Solaris/Illumos.
8087 2011-03-10: Version 3.2.1
8089 Fixed a number of crash bugs.
8091 Improved Crankshaft for x64 and ARM.
8093 Implemented more of EcmaScript 5 strict mode.
8096 2011-03-07: Version 3.2.0
8098 Fixed a number of crash bugs.
8100 Turned on Crankshaft by default on x64 and ARM.
8102 Improved Crankshaft for x64 and ARM.
8104 Implemented more of EcmaScript 5 strict mode.
8107 2011-03-02: Version 3.1.8
8109 Fixed a number of crash bugs.
8111 Improved Crankshaft for x64 and ARM.
8113 Implemented more of EcmaScript 5 strict mode.
8115 Fixed issue with unaligned reads and writes on ARM.
8117 Improved heap profiler support.
8120 2011-02-28: Version 3.1.7
8122 Fixed a number of crash bugs.
8124 Improved Crankshaft for x64 and ARM.
8126 Fixed implementation of indexOf/lastIndexOf for sparse
8127 arrays (http://crbug.com/73940).
8129 Fixed bug in map space compaction (http://crbug.com/59688).
8131 Added support for direct getter accessors calls on ARM.
8134 2011-02-24: Version 3.1.6
8136 Fixed a number of crash bugs.
8138 Added support for Cygwin (issue 64).
8140 Improved Crankshaft for x64 and ARM.
8142 Added Crankshaft support for stores to pixel arrays.
8144 Fixed issue in CPU profiler with Crankshaft.
8147 2011-02-16: Version 3.1.5
8149 Change RegExp parsing to disallow /(*)/.
8151 Added GDB JIT support for ARM.
8153 Fixed several crash bugs.
8155 Performance improvements on the IA32 platform.
8158 2011-02-14: Version 3.1.4
8160 Fixed incorrect compare of prototypes of the global object (issue
8163 Fixed a bug in optimizing calls to global functions (issue 1106).
8165 Made optimized Function.prototype.apply safe for non-JSObject first
8166 arguments (issue 1128).
8168 Fixed an error related to element accessors on Object.prototype and
8169 parser errors (issue 1130).
8171 Fixed a bug in sorting an array with large array indices (issue 1131).
8173 Properly treat exceptions thrown while compiling (issue 1132).
8175 Fixed bug in register requirements for function.apply (issue 1133).
8177 Fixed a representation change bug in the Hydrogen graph construction
8180 Fixed the semantics of delete on parameters (issue 1136).
8182 Fixed a optimizer bug related to moving instructions with side effects
8185 Added support for the global object in Object.keys (issue 1150).
8187 Fixed incorrect value for Math.LOG10E
8188 (issue http://code.google.com/p/chromium/issues/detail?id=72555)
8190 Performance improvements on the IA32 platform.
8192 Implement assignment to undefined reference in ES5 Strict Mode.
8195 2011-02-09: Version 3.1.3
8197 Fixed a bug triggered by functions with huge numbers of declared
8200 Fixed zap value aliasing a real object - debug mode only (issue 866).
8202 Fixed issue where Array.prototype.__proto__ had been set to null
8205 Fixed stability bugs in Crankshaft for x86.
8208 2011-02-07: Version 3.1.2
8210 Added better security checks when accessing properties via
8211 Object.getOwnPropertyDescriptor.
8213 Fixed bug in Object.defineProperty and related access bugs (issues
8214 992, 1083 and 1092).
8216 Added LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to ease
8217 copyright notice generation for embedders.
8220 2011-02-02: Version 3.1.1
8222 Perform security checks before fetching the value in
8223 Object.getOwnPropertyDescriptor.
8225 Fixed a bug in Array.prototype.splice triggered by passing no
8228 Fixed bugs in -0 in arithmetic and in Math.pow.
8230 Fixed bugs in the register allocator and in switching from optimized
8231 to unoptimized code.
8234 2011-01-31: Version 3.1.0
8236 Performance improvements on all platforms.
8239 2011-01-28: Version 3.0.12
8241 Added support for strict mode parameter and object property
8244 Fixed a couple of crash bugs.
8247 2011-01-25: Version 3.0.11
8249 Fixed a bug in deletion of lookup slots that could cause global
8250 variables to be accidentally deleted (http://crbug.com/70066).
8252 Added support for strict mode octal literal verification.
8254 Fixed a couple of crash bugs (issues 1070 and 1071).
8257 2011-01-24: Version 3.0.10
8259 Fixed External::Wrap for 64-bit addresses (issue 1037).
8261 Fixed incorrect .arguments variable proxy handling in the full
8262 code generator (issue 1060).
8264 Introduced partial strict mode support.
8266 Changed formatting of recursive error messages to match Firefox and
8267 Safari (issue http://crbug.com/70334).
8269 Fixed incorrect rounding for float-to-integer conversions for external
8270 array types, which implement the Typed Array spec
8271 (issue http://crbug.com/50972).
8273 Performance improvements on the IA32 platform.
8276 2011-01-19: Version 3.0.9
8278 Added basic GDB JIT Interface integration.
8280 Make invalid break/continue statements a syntax error instead of a
8284 2011-01-17: Version 3.0.8
8286 Exposed heap size limit to the heap statistics gathered by
8287 the GetHeapStatistics API.
8289 Wrapped external pointers more carefully (issue 1037).
8291 Hardened the implementation of error objects to avoid setters
8292 intercepting the properties set then throwing an error.
8294 Avoided trashing the FPSCR when calculating Math.floor on ARM.
8296 Performance improvements on the IA32 platform.
8299 2011-01-10: Version 3.0.7
8301 Stopped calling inherited setters when creating object literals
8304 Changed interpretation of malformed \c? escapes in RegExp to match
8307 Enhanced the command-line debugger interface and fixed some minor
8308 bugs in the debugger.
8310 Performance improvements on the IA32 platform.
8313 2011-01-05: Version 3.0.6
8315 Allowed getters and setters on JSArray elements (issue 900).
8317 Stopped JSON objects from hitting inherited setters (part of
8320 Allowed numbers and strings as names of getters/setters in object
8321 initializer (issue 820).
8323 Added use_system_v8 option to gyp (off by default), to make it easier
8324 for Linux distributions to ship with system-provided V8 library.
8326 Exported external array data accessors (issue 1016).
8328 Added labelled thread names to help with debugging (on Linux).
8331 2011-01-03: Version 3.0.5
8333 Fixed a couple of cast errors for gcc-3.4.3.
8335 Performance improvements in GC and IA32 code generator.
8338 2010-12-21: Version 3.0.4
8340 Added Date::ResetCache() to the API so that the cached values in the
8341 Date object can be reset to allow live DST / timezone changes.
8343 Extended existing support for printing (while debugging) the contents
8344 of objects. Added support for printing objects from release builds.
8346 Fixed V8 issues 989, 1006, and 1007.
8349 2010-12-17: Version 3.0.3
8351 Reapplied all changes for version 3.0.1.
8353 Improved debugger protocol for remote debugging.
8355 Added experimental support for using gyp to generate build files
8358 Fixed implementation of String::Write in the API (issue 975).
8361 2010-12-15: Version 3.0.2
8363 Revert version 3.0.1 and patch 3.0.1.1.
8366 2010-12-13: Version 3.0.1
8368 Added support for an experimental internationalization API as an
8369 extension. This extension is disabled by default but can be enabled
8370 when building V8. The ECMAScript internationalization strawman is
8371 at http://wiki.ecmascript.org/doku.php?id=strawman:i18n_api.
8373 Made RegExp character class parsing stricter. This mirrors a change
8374 to RegExp parsing in WebKit.
8376 Fixed a bug in Object.defineProperty when used to change attributes
8377 of an existing property. It incorrectly set the property value to
8378 undefined (issue 965).
8380 Fixed several different compilation failures on various platforms
8381 caused by the 3.0.0 release.
8383 Optimized Math.pow so it can work on unboxed doubles.
8385 Sped up quoting of JSON strings by removing one traversal of the
8389 2010-12-07: Version 3.0.0
8391 Improved performance by (partially) addressing issue 957 on
8392 IA-32. Still needs more work for the other architectures.
8395 2010-11-29: Version 2.5.9
8397 Fixed crashes during GC caused by partially initialize heap
8400 Fixed bug in process sample that caused memory leaks.
8402 Improved performance on ARM by implementing missing stubs and
8405 Improved heap profiler support.
8407 Added separate seeding on Windows of the random number generator
8408 used internally by the compiler (issue 936).
8410 Exposed API for getting the name of the function used to construct
8413 Fixed date parser to handle one and two digit millisecond
8416 Fixed number parsing to disallow space between sign and
8420 2010-11-23: Version 2.5.8
8422 Removed dependency on Gay's dtoa.
8424 Improved heap profiler precision and speed.
8426 Reduced overhead of callback invocations on ARM.
8429 2010-11-18: Version 2.5.7
8431 Fixed obscure evaluation order bug (issue 931).
8433 Split the random number state between JavaScript and the private API.
8435 Fixed performance bug causing GCs when generating stack traces on
8436 code from very large scripts.
8438 Fixed bug in parser that allowed (foo):42 as a labelled statement
8441 Provide more accurate results about used heap size via
8444 Allow build-time customization of the max semispace size.
8446 Made String.prototype.split honor limit when separator is empty
8449 Added missing failure check after expecting an identifier in
8450 preparser (Chromium issue 62639).
8453 2010-11-10: Version 2.5.6
8455 Added support for VFP rounding modes to the ARM simulator.
8457 Fixed multiplication overflow bug (issue 927).
8459 Added a limit for the amount of executable memory (issue 925).
8462 2010-11-08: Version 2.5.5
8464 Added more aggressive GC of external objects in near out-of-memory
8467 Fixed a bug that gave the incorrect result for String.split called
8468 on the empty string (issue 924).
8471 2010-11-03: Version 2.5.4
8473 Improved V8 VFPv3 runtime detection to address issue 914.
8476 2010-11-01: Version 2.5.3
8478 Fixed a bug that prevents constants from overwriting function values
8479 in object literals (issue 907).
8481 Fixed a bug with reporting of impossible nested calls of DOM functions
8482 (issue http://crbug.com/60753).
8485 2010-10-27: Version 2.5.2
8487 Improved sampler resolution on Linux.
8489 Allowed forcing the use of a simulator from the build script
8490 independently of the host architecture.
8492 Fixed FreeBSD port (issue 912).
8494 Made windows-tick-processor respect D8_PATH.
8496 Implemented --noinline-new flag fully on IA32, X64 and ARM platforms.
8499 2010-10-20: Version 2.5.1
8501 Fixed bug causing spurious out of memory exceptions
8502 (issue http://crbug.com/54580).
8504 Fixed compilation error on Solaris platform (issue 901).
8506 Fixed error in strtod (string to floating point number conversion)
8507 due to glibc's use of 80-bit floats in the FPU on 32-bit linux.
8509 Adjusted randomized allocations of executable memory to have 64k
8510 granularity (issue http://crbug.com/56036).
8512 Supported profiling using kernel perf_events on linux. Added ll_prof
8513 script to tools and --ll-prof flag to V8.
8516 2010-10-18: Version 2.5.0
8518 Fixed bug in cache handling of lastIndex on global regexps
8519 (issue http://crbug.com/58740).
8521 Added USE_SIMULATOR macro that explicitly indicates that we wish to use
8522 the simulator as the execution engine (by Mark Lam <mark.lam@palm.com>
8523 from Hewlett-Packard Development Company, LP).
8525 Fixed compilation error on ARM with gcc 4.4 (issue 894).
8528 2010-10-13: Version 2.4.9
8530 Fixed a bug in the handling of conditional expressions in test
8531 contexts in compiler for top-level code.
8533 Added "//@ sourceURL" information to the StackTrace API.
8535 Exposed RegExp construction through the API.
8538 2010-10-04: Version 2.4.8
8540 Fixed a bug in ResumeProfilerEx causing it to not always write out the
8541 whole snapshot (issue 868).
8543 Performance improvements on all platforms.
8546 2010-09-30: Version 2.4.7
8548 Changed the command-line flag --max-new-space-size to be in kB and the
8549 flag --max-old-space-size to be in MB (previously they were in bytes).
8551 Added Debug::CancelDebugBreak to the debugger API.
8553 Fixed a bug in getters for negative numeric property names
8554 (https://bugs.webkit.org/show_bug.cgi?id=46689).
8556 Performance improvements on all platforms.
8559 2010-09-27: Version 2.4.6
8561 Fixed assertion failure related to copy-on-write arrays (issue 876).
8563 Fixed build failure of 64-bit V8 on Windows.
8565 Fixed a bug in RegExp (issue http://crbug.com/52801).
8567 Improved the profiler's coverage to cover more functions (issue 858).
8569 Fixed error in shift operators on 64-bit V8
8570 (issue http://crbug.com/54521).
8573 2010-09-22: Version 2.4.5
8575 Changed the RegExp benchmark to exercise the regexp engine on different
8576 inputs by scrambling the input strings.
8578 Fixed a bug in keyed loads on strings.
8580 Fixed a bug with loading global function prototypes.
8582 Fixed a bug with profiling RegExp calls (issue http://crbug.com/55999).
8584 Performance improvements on all platforms.
8587 2010-09-15: Version 2.4.4
8589 Fixed bug with hangs on very large sparse arrays.
8591 Now tries harder to free up memory when running out of space.
8593 Added heap snapshots to JSON format to API.
8595 Recalibrated benchmarks.
8598 2010-09-13: Version 2.4.3
8600 Made Date.parse properly handle TZ offsets (issue 857).
8602 Performance improvements on all platforms.
8605 2010-09-08: Version 2.4.2
8609 Fixed stack corruption bug.
8611 Fixed compilation for newer C++ compilers that found Operand(0)
8615 2010-09-06: Version 2.4.1
8617 Added the ability for an embedding application to receive a callback
8618 when V8 allocates (V8::AddMemoryAllocationCallback) or deallocates
8619 (V8::RemoveMemoryAllocationCallback) from the OS.
8621 Fixed several JSON bugs (including issue 855).
8623 Fixed memory overrun crash bug triggered during V8's tick-based
8626 Performance improvements on all platforms.
8629 2010-09-01: Version 2.4.0
8631 Fixed bug in Object.freeze and Object.seal when Array.prototype or
8632 Object.prototype are changed (issue 842).
8634 Updated Array.splice to follow Safari and Firefox when called
8635 with zero arguments.
8637 Fixed a missing live register when breaking at keyed loads on ARM.
8639 Performance improvements on all platforms.
8642 2010-08-25: Version 2.3.11
8644 Fixed bug in RegExp related to copy-on-write arrays.
8646 Refactored tools/test.py script, including the introduction of
8647 VARIANT_FLAGS that allows specification of sets of flags with which
8648 all tests should be run.
8650 Fixed a bug in the handling of debug breaks in CallIC.
8652 Performance improvements on all platforms.
8655 2010-08-23: Version 2.3.10
8657 Fixed bug in bitops on ARM.
8659 Build fixes for unusual compilers.
8661 Track high water mark for RWX memory.
8663 Performance improvements on all platforms.
8666 2010-08-18: Version 2.3.9
8668 Fixed compilation for ARMv4 on OpenBSD/FreeBSD.
8670 Removed specialized handling of GCC 4.4 (issue 830).
8672 Fixed DST cache to take into account the suspension of DST in
8673 Egypt during the 2010 Ramadan (issue http://crbug.com/51855).
8675 Performance improvements on all platforms.
8678 2010-08-16: Version 2.3.8
8680 Fixed build with strict aliasing on GCC 4.4 (issue 463).
8682 Fixed issue with incorrect handling of custom valueOf methods on
8683 string wrappers (issue 760).
8685 Fixed compilation for ARMv4 (issue 590).
8687 Improved performance.
8690 2010-08-11: Version 2.3.7
8692 Reduced size of heap snapshots produced by heap profiler (issue 783).
8694 Introduced v8::Value::IsRegExp method.
8696 Fixed CPU profiler crash in start / stop sequence when non-existent
8697 name is passed (issue http://crbug.com/51594).
8699 Introduced new indexed property query callbacks API (issue 816). This
8700 API is guarded by USE_NEW_QUERY_CALLBACK define and is disabled
8703 Removed support for object literal get/set with number/string
8706 Fixed handling of JSObject::elements in CalculateNetworkSize
8709 Allowed compiling with strict aliasing enabled on GCC 4.4 (issue 463).
8712 2010-08-09: Version 2.3.6
8714 RegExp literals create a new object every time they are evaluated
8717 Object.seal and Object.freeze return the modified object (issue 809).
8719 Fixed building using GCC 4.4.4.
8722 2010-08-04: Version 2.3.5
8724 Added support for ES5 property names. Object initialisers and
8725 dot-notation property access now allows keywords. Also allowed
8726 non-identifiers after "get" or "set" in an object initialiser.
8728 Randomized the addresses of allocated executable memory on Windows.
8731 2010-08-02: Version 2.3.4
8733 Fixed problems in implementation of ES5 function.prototype.bind.
8735 Fixed error when using apply with arguments object on ARM (issue 784).
8737 Added setting of global flags to debugger protocol.
8739 Fixed an error affecting cached results of sin and cos (issue 792).
8741 Removed memory leak from a boundary case where V8 is not initialized.
8743 Fixed issue where debugger could set breakpoints outside the body
8746 Fixed issue in debugger when using both live edit and step in features.
8748 Added Number-letter (Nl) category to Unicode tables. These characters
8749 can now be used in identifiers.
8751 Fixed an assert failure on X64 (issue 806).
8753 Performance improvements on all platforms.
8756 2010-07-26: Version 2.3.3
8758 Fixed error when building the d8 shell in a fresh checkout.
8760 Implemented Function.prototype.bind (ES5 15.3.4.5).
8762 Fixed an error in inlined stores on ia32.
8764 Fixed an error when setting a breakpoint at the end of a function
8765 that does not end with a newline character.
8767 Performance improvements on all platforms.
8770 2010-07-21: Version 2.3.2
8772 Fixed compiler warnings when building with LLVM.
8774 Fixed a bug with for-in applied to strings (issue 785).
8776 Performance improvements on all platforms.
8779 2010-07-19: Version 2.3.1
8781 Fixed compilation and linking with V8_INTERPRETED_REGEXP flag.
8783 Fixed bug related to code flushing while compiling a lazy
8784 compilable function (issue http://crbug.com/49099).
8786 Performance improvements on all platforms.
8789 2010-07-15: Version 2.3.0
8791 Added ES5 Object.seal and Object.isSealed.
8793 Added debugger API for scheduling debugger commands from a
8797 2010-07-14: Version 2.2.24
8799 Added API for capturing stack traces for uncaught exceptions.
8801 Fixed crash bug when preparsing from a non-external V8 string
8804 Fixed JSON.parse bug causing input not to be converted to string
8807 Added ES5 Object.freeze and Object.isFrozen.
8809 Performance improvements on all platforms.
8812 2010-07-07: Version 2.2.23
8814 API change: Convert Unicode code points outside the basic multilingual
8815 plane to the replacement character. Previous behavior was to silently
8816 truncate the value to 16 bits.
8818 Fixed crash: handle all flat string types in regexp replace.
8820 Prevent invalid pre-parsing data passed in through the API from
8823 Performance improvements on all platforms.
8826 2010-07-05: Version 2.2.22
8828 Added ES5 Object.isExtensible and Object.preventExtensions.
8830 Enabled building V8 as a DLL.
8832 Fixed a bug in date code where -0 was not interpreted as 0
8835 Performance improvements on all platforms.
8838 2010-06-30: Version 2.2.21
8840 Fixed bug in externalizing some ASCII strings (Chromium issue 47824).
8842 Updated JSON.stringify to floor the space parameter (issue 753).
8844 Updated the Mozilla test expectations to the newest version.
8846 Updated the ES5 Conformance Test expectations to the latest version.
8848 Updated the V8 benchmark suite.
8850 Provide actual breakpoints locations in response to setBreakpoint
8851 and listBreakpoints requests.
8854 2010-06-28: Version 2.2.20
8856 Fixed bug with for-in on x64 platform (issue 748).
8858 Fixed crash bug on x64 platform (issue 756).
8860 Fixed bug in Object.getOwnPropertyNames. (chromium issue 41243).
8862 Fixed a bug on ARM that caused the result of 1 << x to be
8863 miscalculated for some inputs.
8865 Performance improvements on all platforms.
8868 2010-06-23: Version 2.2.19
8870 Fixed bug that causes the build to break when profillingsupport=off
8873 Added expose-externalize-string flag for testing extensions.
8875 Resolve linker issues with using V8 as a DLL causing a number of
8876 problems with unresolved symbols.
8878 Fixed build failure for cctests when ENABLE_DEBUGGER_SUPPORT is not
8881 Performance improvements on all platforms.
8884 2010-06-16: Version 2.2.18
8886 Added API functions to retrieve information on indexed properties
8887 managed by the embedding layer. Fixes bug 737.
8889 Made ES5 Object.defineProperty support array elements. Fixes bug 619.
8891 Added heap profiling to the API.
8893 Removed old named property query from the API.
8895 Incremental performance improvements.
8898 2010-06-14: Version 2.2.17
8900 Improved debugger support for stepping out of functions.
8902 Incremental performance improvements.
8905 2010-06-09: Version 2.2.16
8907 Removed the SetExternalStringDiposeCallback API. Changed the
8908 disposal of external string resources to call a virtual Dispose
8909 method on the resource.
8911 Added support for more precise break points when debugging and
8914 Memory usage improvements on all platforms.
8917 2010-06-07: Version 2.2.15
8919 Added an API to control the disposal of external string resources.
8921 Added missing initialization of a couple of variables which makes
8922 some compilers complaint when compiling with -Werror.
8924 Improved performance on all platforms.
8927 2010-06-02: Version 2.2.14
8929 Fixed a crash in code generated for String.charCodeAt.
8931 Fixed a compilation issue with some GCC versions (issue 727).
8933 Performance optimizations on x64 and ARM platforms.
8936 2010-05-31: Version 2.2.13
8938 Implemented Object.getOwnPropertyDescriptor for element indices and
8939 strings (issue 599).
8941 Fixed bug for windows 64 bit C calls from generated code.
8943 Added new scons flag unalignedaccesses for arm builds.
8945 Performance improvements on all platforms.
8948 2010-05-26: Version 2.2.12
8950 Allowed accessors to be defined on objects rather than just object
8953 Changed the ScriptData API.
8956 2010-05-21: Version 2.2.11
8958 Fixed crash bug in liveedit on 64 bit.
8960 Use 'full compiler' when debugging is active. This should increase
8961 the density of possible break points, making single step more fine
8962 grained. This will only take effect for functions compiled after
8963 debugging has been started, so recompilation of all functions is
8964 required to get the full effect. IA32 and x64 only for now.
8966 Misc. fixes to the Solaris build.
8968 Added new flags --print-cumulative-gc-stat and --trace-gc-nvp.
8970 Added filtering of CPU profiles by security context.
8972 Fixed crash bug on ARM when running without VFP2 or VFP3.
8974 Incremental performance improvements in all backends.
8977 2010-05-17: Version 2.2.10
8979 Performance improvements in the x64 and ARM backends.
8982 2010-05-10: Version 2.2.9
8984 Allowed Object.create to be called with a function (issue 697).
8986 Fixed bug with Date.parse returning a non-NaN value when called on a
8987 non date string (issue 696).
8989 Allowed unaligned memory accesses on ARM targets that support it (by
8990 Subrato K De of CodeAurora <subratokde@codeaurora.org>).
8992 C++ API for retrieving JavaScript stack trace information.
8995 2010-05-05: Version 2.2.8
8997 Performance improvements in the x64 and ARM backends.
9000 2010-05-03: Version 2.2.7
9002 Added support for ES5 date time string format to Date.parse.
9004 Performance improvements in the x64 backend.
9007 2010-04-28: Version 2.2.6
9009 Added "amd64" as recognized architecture in scons build script
9010 (by Ryan Dahl <coldredlemur@gmail.com>).
9012 Fixed bug in String search and replace with very simple RegExps.
9014 Fixed bug in RegExp containing "\b^".
9016 Performance improvements on all platforms.
9019 2010-04-26: Version 2.2.5
9021 Various performance improvements (especially for ARM and x64)
9023 Fixed bug in CPU profiling (http://crbug.com/42137)
9025 Fixed a bug with the natives cache.
9027 Fixed two bugs in the ARM code generator that can cause
9030 Fixed a bug that may cause a wrong result for shift operations.
9033 2010-04-21: Version 2.2.4
9035 Fixed warnings on arm on newer GCC versions.
9037 Fixed a number of minor bugs.
9039 Performance improvements on all platforms.
9042 2010-04-14: Version 2.2.3
9044 Added stack command and mem command to ARM simulator debugger.
9046 Fixed scons snapshot and ARM build, and Windows X64 build issues.
9048 Performance improvements on all platforms.
9051 2010-04-12: Version 2.2.2
9053 Introduced new profiler API.
9055 Fixed random number generator to produce full 32 random bits.
9058 2010-04-06: Version 2.2.1
9060 Debugger improvements.
9065 2010-03-29: Version 2.2.0
9067 Fixed a few minor bugs.
9069 Performance improvements for string operations.
9072 2010-03-26: Version 2.1.10
9074 Fixed scons build issues.
9076 Fixed a couple of minor bugs.
9079 2010-03-25: Version 2.1.9
9081 Added API support for reattaching a global object to a context.
9083 Extended debugger API with access to the internal debugger context.
9085 Fixed Chromium crashes (issues http://crbug.com/39128 and
9086 http://crbug.com/39160)
9089 2010-03-24: Version 2.1.8
9091 Added fine-grained garbage collection callbacks to the API.
9093 Performance improvements on all platforms.
9096 2010-03-22: Version 2.1.7
9100 Fixed a bug where __proto__ was sometimes enumerated (issue 646).
9102 Performance improvements for arithmetic operations.
9104 Performance improvements for string operations.
9106 Print script name and line number information in stack trace.
9109 2010-03-17: Version 2.1.6
9111 Performance improvements for arithmetic operations.
9113 Performance improvements for string operations.
9116 2010-03-10: Version 2.1.4
9118 Fixed code cache lookup for keyed IC's (issue http://crbug.com/37853).
9120 Performance improvements on all platforms.
9123 2010-03-10: Version 2.1.3
9125 Added API method for context-disposal notifications.
9127 Added API method for accessing elements by integer index.
9129 Added missing implementation of Uint32::Value and Value::IsUint32
9132 Added IsExecutionTerminating API method.
9134 Disabled strict aliasing for GCC 4.4.
9136 Fixed string-concatenation bug (issue 636).
9138 Performance improvements on all platforms.
9141 2010-02-23: Version 2.1.2
9143 Fixed a crash bug caused by wrong assert.
9145 Fixed a bug with register names on 64-bit V8 (issue 615).
9147 Performance improvements on all platforms.
9150 2010-02-19: Version 2.1.1
9152 [ES5] Implemented Object.defineProperty.
9154 Improved profiler support.
9156 Added SetPrototype method in the public V8 API.
9158 Added GetScriptOrigin and GetScriptLineNumber methods to Function
9161 Performance improvements on all platforms.
9164 2010-02-03: Version 2.1.0
9166 Values are now always wrapped in objects when used as a receiver.
9169 [ES5] Implemented Object.getOwnPropertyNames.
9171 [ES5] Restrict JSON.parse to only accept strings that conforms to the
9174 Improvement of debugger agent (issue 549 and 554).
9176 Fixed problem with skipped stack frame in profiles (issue 553).
9178 Solaris support by Erich Ocean <erich.ocean@me.com> and Ryan Dahl
9179 <ry@tinyclouds.org>.
9181 Fixed a bug that Math.round() returns incorrect results for huge
9184 Fixed enumeration order for objects created from some constructor
9185 functions (isue http://crbug.com/3867).
9187 Fixed arithmetic on some integer constants (issue 580).
9189 Numerous performance improvements including porting of previous IA-32
9190 optimizations to x64 and ARM architectures.
9193 2010-01-14: Version 2.0.6
9195 Added ES5 Object.getPrototypeOf, GetOwnPropertyDescriptor,
9196 GetOwnProperty, FromPropertyDescriptor.
9198 Fixed Mac x64 build errors.
9200 Improved performance of some math and string operations.
9202 Improved performance of some regexp operations.
9204 Improved performance of context creation.
9206 Improved performance of hash tables.
9209 2009-12-18: Version 2.0.5
9211 Extended to upper limit of map space to allow for 7 times as many map
9212 to be allocated (issue 524).
9214 Improved performance of code using closures.
9216 Improved performance of some binary operations involving doubles.
9219 2009-12-16: Version 2.0.4
9221 Added ECMAScript 5 Object.create.
9223 Improved performance of Math.max and Math.min.
9225 Optimized adding of strings on 64-bit platforms.
9227 Improved handling of external strings by using a separate table
9228 instead of weak handles. This improves garbage collection
9229 performance and uses less memory.
9231 Changed code generation for object and array literals in toplevel
9232 code to be more compact by doing more work in the runtime.
9234 Fixed a crash bug triggered when garbage collection happened during
9235 generation of a callback load inline cache stub.
9237 Fixed crash bug sometimes triggered when local variables shadowed
9238 parameters in functions that used the arguments object.
9241 2009-12-03: Version 2.0.3
9243 Optimized handling and adding of strings, for-in and Array.join.
9245 Heap serialization is now non-destructive.
9247 Improved profiler support with information on time spend in C++
9248 callbacks registered through the API.
9250 Added commands to the debugger protocol for starting/stopping
9253 Enabled the non-optimizing compiler for top-level code.
9255 Changed the API to only allow strings to be set as data objects on
9256 Contexts and scripts to avoid potentially keeping global objects
9257 around for too long (issue 528).
9259 OpenBSD support patch by Peter Valchev <pvalchev@gmail.com>.
9264 2009-11-24: Version 2.0.2
9266 Improved profiler support.
9268 Fixed bug that broke compilation of d8 with readline support.
9271 2009-11-20: Version 2.0.1
9273 Fixed crash bug in String.prototype.replace.
9275 Reverted a change which caused Chromium interactive ui test
9279 2009-11-18: Version 2.0.0
9281 Added support for VFP on ARM.
9283 Added TryCatch::ReThrow method to the API.
9285 Reduced the size of snapshots and improved the snapshot load time.
9287 Improved heap profiler support.
9289 64-bit version now supported on Windows.
9291 Fixed a number of debugger issues.
9296 2009-10-29: Version 1.3.18
9298 Reverted a change which caused crashes in RegExp replace.
9300 Reverted a change which caused Chromium ui_tests failure.
9303 2009-10-28: Version 1.3.17
9305 Added API method to get simple heap statistics.
9307 Improved heap profiler support.
9309 Fixed the implementation of the resource constraint API so it
9310 works when using snapshots.
9312 Fixed a number of issues in the Windows 64-bit version.
9314 Optimized calls to API getters.
9316 Added valgrind notification on code modification to the 64-bit version.
9318 Fixed issue where we logged shared library addresses on Windows at
9319 startup and never used them.
9322 2009-10-16: Version 1.3.16
9324 X64: Convert smis to holding 32 bits of payload.
9326 Introduced v8::Integer::NewFromUnsigned method.
9328 Added missing null check in Context::GetCurrent.
9330 Added trim, trimLeft and trimRight methods to String
9331 Patch by Jan de Mooij <jandemooij@gmail.com>
9333 Implement ES5 Array.isArray
9334 Patch by Jan de Mooij <jandemooij@gmail.com>
9336 Skip access checks for hidden properties.
9338 Added String::Concat(Handle<String> left, Handle<String> right) to the
9341 Fixed GYP-based builds of V8.
9344 2009-10-07: Version 1.3.15
9346 Expanded the maximum size of the code space to 512MB for 64-bit mode.
9348 Fixed a crash bug happening when starting profiling (issue
9349 http://crbug.com/23768).
9352 2009-10-07: Version 1.3.14
9354 Added GetRealNamedProperty to the API to lookup real properties
9355 located on the object or in the prototype chain skipping any
9358 Fixed the stack limits setting API to work correctly with threads. The
9359 stack limit now needs to be set to each thread thich is used with V8.
9361 Removed the high-priority flag from IdleNotification()
9363 Ensure V8 is initialized before locking and unlocking threads.
9365 Implemented a new JavaScript minifier for compressing the source of
9366 the built-in JavaScript. This removes non-Open Source code from Douglas
9367 Crockford from the project.
9369 Added a missing optimization in StringCharAt.
9371 Fixed some flaky socket tests.
9373 Change by Alexander Botero-Lowry to fix profiler sampling on FreeBSD
9376 Fixed memory leaks in the thread management code.
9378 Fixed the result of assignment to a pixel array. The assigned value
9381 Error reporting for invalid left-hand sides in for-in statements, pre-
9382 and postfix count expressions, and assignments now matches the JSC
9383 behavior in Safari 4.
9385 Follow the spec in disallowing function declarations without a name.
9387 Always allocate code objects within a 2 GB range. On x64 architecture
9388 this is used to use near calls (32-bit displacement) in Code objects.
9390 Optimized array construction ported to x64 and ARM architectures.
9392 [ES5] Changed Object.keys to return strings for element indices.
9395 2009-09-23: Version 1.3.13
9397 Fixed uninitialized memory problem.
9399 Improved heap profiler support.
9402 2009-09-22: Version 1.3.12
9404 Changed behavior of |function|.toString() on built-in functions to
9405 be compatible with other implementations. Patch by Jan de Mooij.
9407 Added Object::IsDirty in the API.
9409 Optimized array construction; it is now handled purely in native
9412 [ES5] Made properties of the arguments array enumerable.
9414 [ES5] Added test suite adapter for the es5conform test suite.
9416 [ES5] Added Object.keys function.
9419 2009-09-15: Version 1.3.11
9421 Fixed crash in error reporting during bootstrapping.
9423 Optimized generated IA32 math code by using SSE2 instructions when
9426 Implemented missing pieces of debugger infrastructure on ARM. The
9427 debugger is now fully functional on ARM.
9429 Made 'hidden' the default visibility for gcc.
9432 2009-09-09: Version 1.3.10
9434 Fixed profiler on Mac in 64-bit mode.
9436 Optimized creation of objects from simple constructor functions on
9439 Fixed a number of debugger issues.
9441 Reduced the amount of memory consumed by V8.
9444 2009-09-02: Version 1.3.9
9446 Optimized stack guard checks on ARM.
9448 Optimized API operations by inlining more in the API.
9450 Optimized creation of objects from simple constructor functions.
9452 Enabled a number of missing optimizations in the 64-bit port.
9454 Implemented native-code support for regular expressions on ARM.
9456 Stopped using the 'sahf' instruction on 64-bit machines that do
9459 Fixed a bug in the support for forceful termination of JavaScript
9463 2009-08-26: Version 1.3.8
9465 Changed the handling of idle notifications to allow idle
9466 notifications when V8 has not yet been initialized.
9468 Fixed ARM simulator compilation problem on Windows.
9471 2009-08-25: Version 1.3.7
9473 Reduced the size of generated code on ARM platforms by reducing
9474 the size of constant pools.
9476 Changed build files to not include the 'ENV' user environment
9477 variable in the build environment.
9479 Changed the handling of idle notifications.
9482 2009-08-21: Version 1.3.6
9484 Added support for forceful termination of JavaScript execution.
9486 Added low memory notification to the API. The embedding host can signal
9487 a low memory situation to V8.
9489 Changed the handling of global handles (persistent handles in the API
9490 sense) to avoid issues regarding allocation of new global handles
9491 during weak handle callbacks.
9493 Changed the growth policy of the young space.
9495 Fixed a GC issue introduced in version 1.3.5.
9498 2009-08-19: Version 1.3.5
9500 Optimized initialization of some arrays in the builtins.
9502 Fixed mac-nm script to support filenames with spaces.
9504 Support for using the V8 profiler when V8 is embedded in a Windows DLL.
9506 Changed typeof RegExp from 'object' to 'function' for compatibility.
9507 Fixed bug where regexps were not callable across contexts.
9509 Added context independent script compilation to the API.
9511 Added API call to get the stack trace for an exception.
9513 Added API for getting object mirrors.
9515 Made sure that SSE3 instructions are used whenever possible even when
9516 running off a snapshot generated without using SSE3 instructions.
9518 Tweaked the handling of the initial size and growth policy of the heap.
9520 Added native code generation for RegExp to 64-bit version.
9522 Added JavaScript debugger support to 64-bit version.
9525 2009-08-13: Version 1.3.4
9527 Added a readline() command to the d8 shell.
9529 Fixed bug in json parsing.
9531 Added idle notification to the API and reduced memory on idle
9535 2009-08-12: Version 1.3.3
9537 Fixed issue 417: incorrect %t placeholder expansion.
9539 Added .gitignore file similar to Chromium's one.
9541 Fixed SConstruct file to build with new logging code for Android.
9543 API: added function to find instance of template in prototype
9544 chain. Inlined Object::IsInstanceOf.
9546 Land change to notify valgrind when we modify code on x86.
9548 Added api call to determine whether a string can be externalized.
9550 Added a write() command to d8.
9553 2009-08-05: Version 1.3.2
9555 Started new compiler infrastructure for two-pass compilation using a
9556 control flow graph constructed from the AST.
9558 Profiler stack sampling for X64.
9560 Safe handling of NaN to Posix platform-dependent time functions.
9562 Added a new profiler control API to unify controlling various aspects
9568 2009-07-30: Version 1.3.1
9570 Speed improvements to accessors and interceptors.
9572 Added support for capturing stack information on custom errors.
9574 Added support for morphing an object into a pixel array where its
9575 indexed properties are stored in an external byte array. Values written
9576 are always clamped to the 0..255 interval.
9578 Profiler on x64 now handles C/C++ functions from shared libraries.
9580 Changed the debugger to avoid stepping into function.call/apply if the
9581 function is a built-in.
9583 Initial implementation of constructor heap profile for JS objects.
9585 More fine grained control of profiling aspects through the API.
9587 Optimized the called as constructor check for API calls.
9590 2009-07-27: Version 1.3.0
9592 Allowed RegExp objects to be called as functions (issue 132).
9594 Fixed issue where global property cells would escape after
9595 detaching the global object; see http://crbug.com/16276.
9597 Added support for stepping into setters and getters in the
9600 Changed the debugger to avoid stopping in its own JavaScript code
9601 and in the code of built-in functions.
9603 Fixed issue 345 by avoiding duplicate escaping labels.
9605 Fixed ARM code generator crash in short-circuited boolean
9606 expressions and added regression tests.
9608 Added an external allocation limit to avoid issues where small V8
9609 objects would hold on to large amounts of external memory without
9610 causing garbage collections.
9612 Finished more of the inline caching stubs for x64 targets.
9615 2009-07-13: Version 1.2.14
9617 Added separate paged heap space for global property cells and
9618 avoid updating the write barrier when storing into them.
9620 Improved peep-hole optimization on ARM platforms by not emitting
9621 unnecessary debug information.
9623 Re-enabled ICs for loads and calls that skip a global object
9624 during lookup through the prototype chain.
9626 Allowed access through global proxies to use ICs.
9631 2009-07-09: Version 1.2.13
9633 Fixed issue 397, issue 398, and issue 399.
9635 Added support for breakpoint groups.
9637 Fixed bugs introduced with the new global object representation.
9639 Fixed a few bugs in the ARM code generator.
9642 2009-07-06: Version 1.2.12
9644 Added stack traces collection to Error objects accessible through
9645 the e.stack property.
9647 Changed RegExp parser to use a recursive data structure instead of
9648 stack-based recursion.
9650 Optimized Date object construction and string concatenation.
9652 Improved performance of div, mod, and mul on ARM platforms.
9655 2009-07-02: Version 1.2.11
9657 Improved performance on IA-32 and ARM.
9659 Fixed profiler sampler implementation on Mac OS X.
9661 Changed the representation of global objects to improve
9662 performance of adding a lot of new properties.
9665 2009-06-29: Version 1.2.10
9667 Improved debugger support.
9669 Fixed bug in exception message reporting (issue 390).
9671 Improved overall performance.
9674 2009-06-23: Version 1.2.9
9676 Improved math performance on ARM.
9678 Fixed profiler name-inference bug.
9680 Fixed handling of shared libraries in the profiler tick processor
9683 Fixed handling of tests that time out in the test scripts.
9685 Fixed compilation on MacOS X version 10.4.
9687 Fixed two bugs in the regular expression engine.
9689 Fixed a bug in the string type inference.
9691 Fixed a bug in the handling of 'constant function' properties.
9693 Improved overall performance.
9696 2009-06-16: Version 1.2.8
9698 Optimized math on ARM platforms.
9700 Fixed two crash bugs in the handling of getters and setters.
9702 Improved the debugger support by adding scope chain information.
9704 Improved the profiler support by compressing log data transmitted
9707 Improved overall performance.
9710 2009-06-08: Version 1.2.7
9712 Improved debugger and profiler support.
9714 Reduced compilation time by improving the handling of deferred
9717 Optimized interceptor accesses where the property is on the object
9718 on which the interceptors is attached.
9720 Fixed compilation problem on GCC 4.4 by changing the stack
9721 alignment to 16 bytes.
9723 Fixed handle creation to follow stric aliasing rules.
9725 Fixed compilation on FreeBSD.
9727 Introduced API for forcing the deletion of a property ignoring
9728 interceptors and attributes.
9731 2009-05-29: Version 1.2.6
9733 Added a histogram recording hit rates at different levels of the
9736 Added stack overflow check for the RegExp analysis phase. Previously a
9737 very long regexp graph could overflow the stack with recursive calls.
9739 Use a dynamic buffer when collecting log events in memory.
9741 Added start/stop events to the profiler log.
9743 Fixed infinite loop which could happen when setting a debug break while
9744 executing a RegExp compiled to native code.
9746 Fixed handling of lastIndexOf called with negative index (issue 351).
9748 Fixed irregular crash in profiler test (issue 358).
9750 Fixed compilation issues with some versions of gcc.
9753 2009-05-26: Version 1.2.5
9755 Fixed bug in initial boundary check for Boyer-Moore text
9758 Fixed compilation issues with MinGW and gcc 4.3+ and added support
9759 for armv7 and cortex-a8 architectures. Patches by Lei Zhang and
9762 Added a script cache to the debugger.
9764 Optimized compilation performance by improving internal data
9765 structures and avoiding expensive property load optimizations for
9766 code that's infrequently executed.
9768 Exposed the calling JavaScript context through the static API
9769 function Context::GetCalling().
9772 2009-05-18: Version 1.2.4
9774 Improved performance of floating point number allocation for ARM
9777 Fixed crash when using the instanceof operator on functions with
9778 number values in their prototype chain (issue 341).
9780 Optimized virtual frame operations in the code generator to speed
9781 up compilation time and allocated the frames in the zone.
9783 Made the representation of virtual frames and jump targets in the
9784 code generator much more compact.
9786 Avoided linear search for non-locals in scope code when resolving
9787 variables inside with and eval scopes.
9789 Optimized lexical scanner by dealing with whitespace as part of
9790 the token scanning instead of as a separate step before it.
9792 Changed the scavenging collector so that promoted objects do not
9793 reside in the old generation while their remembered set is being
9794 swept for pointers into the young generation.
9796 Fixed numeric overflow handling when compiling count operations.
9799 2009-05-11: Version 1.2.3
9801 Fixed bug in reporting of out-of-memory situations.
9803 Introduced hidden prototypes on certain builtin prototype objects
9804 such as String.prototype to emulate JSC's behavior of restoring
9805 the original function when deleting functions from those prototype
9808 Fixed crash bug in the register allocator.
9811 2009-05-04: Version 1.2.2
9813 Fixed bug in array sorting for sparse arrays (issue 326).
9815 Added support for adding a soname when building a shared library
9816 on Linux (issue 151).
9818 Fixed bug caused by morphing internal ASCII strings to external
9819 two-byte strings. Slices over ASCII strings have to forward ASCII
9820 checks to the underlying buffer string.
9822 Allowed API call-as-function handlers to be called as
9825 Fixed a crash bug where an external string was disposed but a
9826 slice of the external string survived as a symbol.
9829 2009-04-27: Version 1.2.1
9831 Added EcmaScript 5 JSON object.
9833 Fixed bug in preemption support on ARM.
9836 2009-04-23: Version 1.2.0
9838 Optimized floating-point operations on ARM.
9840 Added a number of extensions to the debugger API.
9842 Changed the enumeration order for unsigned integer keys to always
9845 Added a "read" extension to the shell sample.
9847 Added support for Array.prototype.reduce and
9848 Array.prototype.reduceRight.
9850 Added an option to the SCons build to control Microsoft Visual C++
9851 link-time code generation.
9853 Fixed a number of bugs (in particular issue 315, issue 316,
9854 issue 317 and issue 318).
9857 2009-04-15: Version 1.1.10
9859 Fixed crash bug that occurred when loading a const variable in the
9862 Allowed using with and eval in registered extensions in debug mode
9863 by fixing bogus assert.
9865 Fixed the source position for function returns to enable the
9866 debugger to break there.
9869 2009-04-14: Version 1.1.9
9871 Made the stack traversal code in the profiler robust by avoiding
9872 to look into the heap.
9874 Added name inferencing for anonymous functions to facilitate
9875 debugging and profiling.
9877 Re-enabled stats timers in the developer shell (d8).
9879 Fixed issue 303 by avoiding to shortcut cons-symbols.
9882 2009-04-11: Version 1.1.8
9884 Changed test-debug/ThreadedDebugging to be non-flaky (issue 96).
9886 Fixed step-in handling for Function.prototype.apply and call in
9887 the debugger (issue 269).
9889 Fixed v8::Object::DeleteHiddenValue to not bail out when there
9890 are no hidden properties.
9892 Added workaround for crash bug, where external symbol table
9893 entries with deleted resources would lead to NPEs when looking
9894 up in the symbol table.
9897 2009-04-07: Version 1.1.7
9899 Added support for easily importing additional environment
9900 variables into the SCons build.
9902 Optimized strict equality checks.
9904 Fixed crash in indexed setters on objects without a corresponding
9907 Re-enabled script compilation cache.
9910 2009-04-01: Version 1.1.6
9912 Reverted an unsafe code generator change.
9915 2009-04-01: Version 1.1.5
9917 Fixed bug that caused function literals to not be optimized as
9918 much as other functions.
9920 Improved profiler support.
9922 Fixed a crash bug in connection with debugger unloading.
9924 Fixed a crash bug in the code generator caused by losing the
9925 information that a frame element was copied.
9927 Fixed an exception propagation bug that could cause non-null
9928 return values when exceptions were thrown.
9931 2009-03-30: Version 1.1.4
9933 Optimized String.prototype.match.
9935 Improved the stack information in profiles.
9937 Fixed bug in ARM port making it possible to compile the runtime
9938 system for thumb mode again.
9940 Implemented a number of optimizations in the code generator.
9942 Fixed a number of memory leaks in tests.
9944 Fixed crash bug in connection with script source code and external
9948 2009-03-24: Version 1.1.3
9950 Fixed assertion failures in compilation of loop conditions.
9952 Removed STL dependency from developer shell (d8).
9954 Added infrastructure for protecting the V8 heap from corruption
9955 caused by memory modifications from the outside.
9958 2009-03-24: Version 1.1.2
9960 Improved frame merge code generated by the code generator.
9962 Optimized String.prototype.replace.
9964 Implemented __defineGetter__ and __defineSetter__ for properties
9965 with integer keys on non-array objects.
9967 Improved debugger and profiler support.
9969 Fixed a number of portability issues to allow compilation for
9970 smaller ARM devices.
9972 Exposed object cloning through the API.
9974 Implemented hidden properties. This is used to expose an identity
9975 hash for objects through the API.
9977 Implemented restarting of regular expressions if their input
9978 string changes representation during preemption.
9980 Fixed a code generator bug that could cause assignments in loops
9981 to be ignored if using continue to break out of the loop (issue
9985 2009-03-12: Version 1.1.1
9987 Fixed an assertion in the new compiler to take stack overflow
9988 exceptions into account.
9990 Removed exception propagation code that could cause crashes.
9992 Fixed minor bug in debugger line number computations.
9994 8-byte align the C stack on Linux and Windows to speed up floating
9998 2009-03-12: Version 1.1.0
10000 Improved code generation infrastructure by doing simple register
10001 allocation and constant folding and propagation.
10003 Optimized regular expression matching by avoiding to create
10004 intermediate string arrays and by flattening nested array
10005 representations of RegExp data.
10007 Traverse a few stack frames when recording profiler samples to
10008 include partial call graphs in the profiling output.
10010 Added support for using OProfile to profile generated code.
10012 Added remote debugging support to the D8 developer shell.
10014 Optimized creation of nested literals like JSON objects.
10016 Fixed a bug in garbage collecting unused maps and turned it on by
10017 default (--collect-maps).
10019 Added support for running tests under Valgrind.
10022 2009-02-27: Version 1.0.3
10024 Optimized double-to-integer conversions in bit operations by using
10025 SSE3 instructions if available.
10027 Optimized initialization sequences that store to multiple
10028 properties of the same object.
10030 Changed the D8 debugger frontend to use JSON messages.
10032 Force garbage collections when disposing contexts.
10034 Align code objects at 32-byte boundaries.
10037 2009-02-25: Version 1.0.2
10039 Improved profiling support by performing simple call stack
10040 sampling for ticks and by fixing a bug in the logging of code
10043 Fixed a number of debugger issues.
10045 Optimized code that uses eval.
10047 Fixed a couple of bugs in the regular expression engine.
10049 Reduced the size of generated code for certain regular expressions.
10051 Removed JSCRE completely.
10053 Fixed issue where test could not be run if there was a dot in the
10057 2009-02-13: Version 1.0.1
10059 Fixed two crash-bugs in irregexp (issue 231 and 233).
10061 Fixed a number of minor bugs (issue 87, 227 and 228).
10063 Added support for morphing strings to external strings on demand
10064 to avoid having to create copies in the embedding code.
10066 Removed experimental support for external symbol callbacks.
10069 2009-02-09: Version 1.0.0
10071 Fixed crash-bug in the code generation for case independent 16 bit
10074 Made shells more robust in the presence of string conversion
10075 failures (issue 224).
10077 Fixed a potential infinite loop when attempting to resolve
10080 Miscellaneous fixes to the new regular expression engine.
10082 Reduced binary by stripping unneeded text from JavaScript library and
10083 minifying some JavaScript files.
10086 2009-01-27: Version 0.4.9
10088 Enabled new regular expression engine.
10090 Made a number of changes to the debugger protocol.
10092 Fixed a number of bugs in the preemption support.
10094 Added -p option to the developer shell to run files in parallel
10097 Fixed a number of minor bugs (including issues 176, 187, 189, 192,
10100 Fixed a number of bugs in the serialization/deserialization
10101 support for the ARM platform.
10104 2009-01-19: Version 0.4.8.1
10106 Minor patch to debugger support.
10109 2009-01-16: Version 0.4.8
10111 Fixed string length bug on ARM (issue 171).
10113 Made most methods in the API const.
10115 Optimized object literals by improving data locality.
10117 Fixed bug that caused incomplete functions to be cached in case of
10118 stack overflow exceptions.
10120 Fixed bugs that caused catch variables and variables introduced by
10121 eval to behave incorrectly when using accessors (issues 186, 190
10125 2009-01-06: Version 0.4.7
10127 Minor bugfixes and optimizations.
10129 Added command line debugger to D8 shell.
10131 Fixed subtle bug that caused the wrong 'this' to be used when
10132 calling a caught function in a catch clause.
10134 Inline array loads within loops directly in the code instead of
10135 always calling a stub.
10138 2008-12-11: Version 0.4.6
10140 Fixed exception reporting bug where certain exceptions were
10141 incorrectly reported as uncaught.
10143 Improved the memory allocation strategy used during compilation to
10144 make running out of memory when compiling huge scripts less
10147 Optimized String.replace by avoiding the construction of certain
10150 Fixed bug in code generation for large switch statements on ARM.
10152 Fixed bug that caused V8 to change the global object template
10153 passed in by the user.
10155 Changed the API for creating object groups used during garbage
10156 collection. Entire object groups are now passed to V8 instead of
10157 individual members of the groups.
10160 2008-12-03: Version 0.4.5
10162 Added experimental API support for allocating V8 symbols as
10165 Fixed bugs in debugging support on ARM.
10167 Changed eval implementation to correctly detect whether or not a
10168 call to eval is aliased.
10170 Fixed bug caused by a combination of the compilation cache and
10171 dictionary probing in native code. The bug caused us to sometimes
10172 call functions that had not yet been compiled.
10174 Added platform support for FreeBSD.
10176 Added support for building V8 on Windows with either the shared or
10177 static version of MSVCRT
10179 Added the v8::jscre namespace around the jscre functions to avoid
10180 link errors (duplicate symbols) when building Google Chrome.
10182 Added support for calling a JavaScript function with the current
10183 debugger execution context as its argument to the debugger
10186 Changed the type of names of counters from wchar_t to char.
10188 Changed the Windows system call used to compute daylight savings
10189 time. The system call that we used to use became four times
10190 slower on WinXP SP3.
10192 Added support in the d8 developer shell for memory-mapped counters
10193 and added a stats-viewer tool.
10195 Fixed bug in upper/lower case mappings (issue 149).
10198 2008-11-17: Version 0.4.4
10200 Reduced code size by using shorter instruction encoding when
10203 Added a --help option to the shell sample and to the d8 shell.
10205 Added visual studio project files for building the ARM simulator.
10207 Fixed a number of ARM simulator issues.
10209 Fixed bug in out-of-memory handling on ARM.
10211 Implemented shell support for passing arguments to a script from
10214 Fixed bug in date code that made certain date functions return -0
10215 instead of 0 for dates before the epoch.
10217 Restricted applications of eval so it can only be used in the
10218 context of the associated global object.
10220 Treat byte-order marks as whitespace characters.
10223 2008-11-04: Version 0.4.3
10225 Added support for API accessors that prohibit overwriting by
10226 accessors defined in JavaScript code by using __defineGetter__ and
10229 Improved handling of conditionals in test status files.
10231 Introduced access control in propertyIsEnumerable.
10233 Improved performance of some string operations by caching
10234 information about the type of the string between operations.
10236 Fixed bug in fast-case code for switch statements that only have
10240 2008-10-30: Version 0.4.2
10242 Improved performance of Array.prototype.concat by moving the
10243 implementation to C++ (issue 123).
10245 Fixed heap growth policy to avoid growing old space to its maximum
10246 capacity before doing a garbage collection and fixed issue that
10247 would lead to artificial out of memory situations (issue 129).
10249 Fixed Date.prototype.toLocaleDateString to return the date in the
10250 same format as WebKit.
10252 Added missing initialization checks to debugger API.
10254 Added removing of unused maps during GC.
10257 2008-10-28: Version 0.4.1
10259 Added caching of RegExp data in compilation cache.
10261 Added Visual Studio project file for d8 shell.
10263 Fixed function call performance regression introduced in version
10264 0.4.0 when splitting the global object in two parts (issue 120).
10266 Fixed issue 131 by checking for empty handles before throwing and
10267 reporting exceptions.
10270 2008-10-23: Version 0.4.0
10272 Split the global object into two parts: The state holding global
10273 object and the global object proxy.
10275 Fixed bug that affected the value of an assignment to an element
10276 in certain cases (issue 116).
10278 Added GetPropertyNames functionality (issue 33) and extra Date
10279 functions (issue 77) to the API.
10281 Changed WeakReferenceCallback to take a Persistent<Value> instead
10282 of a Persistent<Object> (issue 101).
10284 Fixed issues with message reporting for exceptions in try-finally
10285 blocks (issues 73 and 75).
10287 Optimized flattening of strings and string equality checking.
10289 Improved Boyer-Moore implementation for faster indexOf operations.
10291 Added development shell (d8) which includes counters and
10292 completion support.
10294 Fixed problem with the receiver passed to functions called from
10298 2008-10-16: Version 0.3.5
10300 Improved string hash-code distribution by excluding bit-field bits
10301 from the hash-code.
10303 Changed string search algorithm used in indexOf from KMP to
10306 Improved the generated code for the instanceof operator.
10308 Improved performance of slow-case string equality checks by
10309 specializing the code based on the string representation.
10311 Improve the handling of out-of-memory situations (issue 70).
10313 Improved performance of strict equality checks.
10315 Improved profiler output to make it easier to see anonymous
10318 Improved performance of slow-case keyed loads.
10320 Improved property access performance by allocating a number of
10321 properties in the front object.
10323 Changed the toString behavior on the built-in object constructors
10324 to print [native code] instead of the actual source. Some web
10325 applications do not like constructors with complex toString
10329 2008-10-06: Version 0.3.4
10331 Changed Array.prototype.sort to use quick sort.
10333 Fixed code generation issue where leaving a finally block with
10334 break or continue would accumulate elements on the expression
10337 Made sure that the name accessor on functions returns the expected
10338 names for builtin JavaScript functions and C++ callback functions.
10340 Added fast case code for extending the property storage array of
10341 JavaScript objects.
10343 Ported switch statement optimizations introduced in version 0.3.3
10344 to the ARM code generator.
10346 Allowed GCC to use strict-aliasing rules when compiling.
10348 Improved performance of arguments object allocation by taking care
10349 of arguments adaptor frames in the generated code.
10351 Updated the V8 benchmark suite to version 2.
10354 2008-09-25: Version 0.3.3
10356 Improved handling of relocation information to enable more
10357 peep-hole optimizations.
10359 Optimized switch statements where all labels are constant small
10362 Optimized String.prototype.indexOf for common cases.
10364 Fixed more build issues (issue 80).
10366 Fixed a couple of profiler issues.
10368 Fixed bug where the body of a function created using the Function
10369 constructor was not allowed to end with a single-line comment
10372 Improved handling of object literals by canonicalizing object
10373 literal maps. This will allow JSON objects with the same set of
10374 properties to share the same map making inline caching work better
10378 2008-09-17: Version 0.3.2
10380 Generalized the EvalCache into a CompilationCache and enabled it
10381 for scripts too. The current strategy is to retire all entries
10382 whenever a mark-sweep collection is started.
10384 Fixed bug where switch statements containing only a default case
10385 would lead to an unbalanced stack (issue 69).
10387 Fixed bug that made access to the function in a named function
10388 expression impossible in certain situations (issue 24).
10390 Fixed even more build issues.
10392 Optimized calling conventions on ARM. The conventions on ARM and
10395 Removed static initializers for flags and counters.
10397 Improved inline caching behavior for uncommon cases where lazily
10398 loading Date and RegExp code could force certain code paths go
10401 Removed arguments adaption for builtins written in C++. This
10402 makes Array.prototype.push and Array.prototype.pop slightly
10406 2008-09-11: Version 0.3.1
10408 Fixed a number of build issues.
10410 Fixed problem with missing I-cache flusing on ARM.
10412 Changed space layout in memory management by splitting up
10413 code space into old data space and code space.
10415 Added utf-8 conversion support to the API (issue 57).
10417 Optimized repeated calls to eval with the same strings. These
10418 repeated calls are common in web applications.
10420 Added Xcode project file.
10422 Optimized a couple of Array operation.
10424 Fixed parser bug by checking for end-of-string when parsing break
10425 and continue (issue 35).
10427 Fixed problem where asian characters were not categorized as
10430 Fixed bug that disallowed calling functions fetched from an array
10431 using a string as an array index (issue 32).
10433 Fixed bug where the internal field count on object templates were
10434 sometimes ignored (issue 54).
10436 Added -f option to the shell sample for compatibility with other
10437 engines (issue 18).
10439 Added source info to TryCatches in the API.
10441 Fixed problem where the seed for the random number generator was
10442 clipped in a double to unsigned int conversion.
10444 Fixed bug where cons string symbols were sometimes converted to
10445 non-symbol flat strings during GC.
10447 Fixed bug in error reporting when attempting to convert null to an
10451 2008-09-04: Version 0.3.0
10453 Added support for running tests on the ARM simulator.
10455 Fixed bug in the 'in' operator where negative indices were not
10458 Fixed build issues on gcc-4.3.1.
10460 Changed Date.prototype.toLocaleTimeString to not print the
10461 timezone part of the time.
10463 Renamed debug.h to v8-debug.h to reduce the risk of name conflicts
10467 2008-09-02: Version 0.2.5
10469 Renamed the top level directory 'public' to 'include'.
10471 Added 'env' option to the SCons build scripts to support
10472 overriding the ENV part of the build environment. This is mostly
10473 to support Windows builds in cases where SCons cannot find the
10474 correct paths to the Windows SDK, as these paths cannot be passed
10475 through shell environment variables.
10477 Enabled "Buffer Security Check" on for the Windows SCons build and
10478 added the linker option /OPT:ICF as an optimization.
10480 Added the V8 benchmark suite to the repository.
10483 2008-09-01: Version 0.2.4
10485 Included mjsunit JavaScript test suite and C++ unit tests.
10487 Changed the shell sample to not print the result of executing a
10488 script provided on the command line.
10490 Fixed issue when building samples on Windows using a shared V8
10491 library. Added visibility option on Linux build which makes the
10492 generated library 18% smaller.
10494 Changed build system to accept multiple build modes in one build
10495 and generate separate objects, libraries and executables for each
10498 Removed deferred negation optimization (a * -b => -(a * b)) since
10499 this visibly changes operand conversion order.
10501 Improved parsing performance by introducing stack guard in
10502 preparsing. Without a stack guard preparsing always bails out
10503 with stack overflow.
10505 Changed shell sample to take flags directly from the command-line.
10506 Added API call that implements this.
10508 Added load, quit and version functions to the shell sample so it's
10509 easier to run benchmarks and tests.
10511 Fixed issue with building samples and cctests on 64-bit machines.
10513 Fixed bug in the runtime system where the prototype chain was not
10514 always searched for a setter when setting a property that does not
10518 2008-08-14: Version 0.2.3
10520 Improved performance of garbage collection by moving the
10521 function that updates pointers during compacting collection
10522 into the updating visitor. This gives the compiler a better
10523 chance to inline and avoid a function call per (potential)
10526 Extended the shell sample with a --runtime-flags option.
10528 Added Visual Studio project files for the shell.cc and
10529 process.cc samples.
10532 2008-08-13: Version 0.2.2
10534 Improved performance of garbage collection by changing the way
10535 we use the marking stack in the event of stack overflow during
10536 full garbage collection and by changing the way we mark roots.
10538 Cleaned up ARM version by removing top of stack caching and by
10539 introducing push/pop elimination.
10541 Cleaned up the way runtime functions are called to allow
10542 runtime calls with no arguments.
10544 Changed Windows build options to make sure that exceptions are
10545 disabled and that optimization flags are enabled.
10547 Added first version of Visual Studio project files.
10550 2008-08-06: Version 0.2.1
10552 Improved performance of unary addition by avoiding runtime calls.
10554 Fixed the handling of '>' and '<=' to use right-to-left conversion
10555 and left-to-right evaluation as specified by ECMA-262.
10557 Fixed a branch elimination bug on the ARM platform where incorrect
10558 code was generated because of overly aggressive branch
10561 Improved performance of code that repeatedly assigns the same
10562 function to the same property of different objects with the same
10565 Untangled DEBUG and ENABLE_DISASSEMBLER defines. The disassembler
10566 no longer expects DEBUG to be defined.
10568 Added platform-nullos.cc to serve as the basis for new platform
10572 2008-07-30: Version 0.2.0
10574 Changed all text files to have native svn:eol-style.
10576 Added a few samples and support for building them. The samples
10577 include a simple shell that can be used to benchmark and test V8.
10579 Changed V8::GetVersion to return the version as a string.
10581 Added source for lazily loaded scripts to snapshots and made
10582 serialization non-destructive.
10584 Improved ARM support by fixing the write barrier code to use
10585 aligned loads and stores and by removing premature locals
10586 optimization that relied on broken support for callee-saved
10587 registers (removed).
10589 Refactored the code for marking live objects during garbage
10590 collection and the code for allocating objects in paged
10591 spaces. Introduced an abstraction for the map word of a heap-
10592 allocated object and changed the memory allocator to allocate
10593 executable memory only for spaces that may contain code objects.
10595 Moved StringBuilder to utils.h and ScopedLock to platform.h, where
10596 they can be used by debugging and logging modules. Added
10597 thread-safe message queues for dealing with debugger events.
10599 Fixed the source code reported by toString for certain builtin
10600 empty functions and made sure that the prototype property of a
10601 function is enumerable.
10603 Improved performance of converting values to condition flags in
10606 Merged disassembler-{arch} files.
10609 2008-07-28: Version 0.1.4
10611 Added support for storing JavaScript stack traces in a stack
10612 allocated buffer to make it visible in shallow core dumps.
10613 Controlled by the --preallocate-message-memory flag which is
10614 disabled by default.
10617 2008-07-25: Version 0.1.3
10619 Fixed bug in JSObject::GetPropertyAttributePostInterceptor where
10620 map transitions would count as properties.
10622 Allowed aliased eval invocations by treating them as evals in the
10623 global context. This may change in the future.
10625 Added support for accessing the last entered context through the
10626 API and renamed Context::Current to Context::GetCurrent and
10627 Context::GetSecurityContext to Context::GetCurrentSecurityContext.
10629 Fixed bug in the debugger that would cause the debugger scripts to
10630 be recursively loaded and changed all disabling of interrupts to
10631 be block-structured.
10633 Made snapshot data read-only to allow it to be more easily shared
10634 across multiple users of V8 when linked as a shared library.
10637 2008-07-16: Version 0.1.2
10639 Fixed building on Mac OS X by recognizing i386 and friends as
10642 Added propagation of stack overflow exceptions that occur while
10643 compiling nested functions.
10645 Improved debugger with support for recursive break points and
10646 handling of exceptions that occur in the debugger JavaScript code.
10648 Renamed GetInternal to GetInternalField and SetInternal to
10649 SetInternalField in the API and moved InternalFieldCount and
10650 SetInternalFieldCount from FunctionTemplate to ObjectTemplate.
10653 2008-07-09: Version 0.1.1
10655 Fixed bug in stack overflow check code for IA-32 targets where a
10656 non-tagged value in register eax was pushed to the stack.
10658 Fixed potential quadratic behavior when converting strings to
10661 Fixed bug where the return value from Object::SetProperty could
10662 end up being the property holder instead of the written value.
10664 Improved debugger support by allowing nested break points and by
10665 dealing with stack-overflows when compiling functions before
10666 setting break points in them.
10669 2008-07-03: Version 0.1.0