+Overview of changes leading to 1.2.7
+Monday, May 2, 2016
+====================================
+
+- Blacklist another version of Times New Roman (Bold) Italic from Windows 7.
+- Fix Mongolian Free Variation Selectors shaping with certain fonts.
+- Fix Tibetan shorthand contractions shaping.
+- Improved list of language tag mappings.
+- Unbreak build on Windows CE.
+- Make 'glyf' table loading lazy in hb-ot-font.
+
+
+Overview of changes leading to 1.2.6
+Friday, April 8, 2016
+====================================
+
+- Blacklist GDEF table of another set of Times New Roman (Bold) Italic.
+- DirectWrite backend improvements. Note: DirectWrite backend is
+ exclusively for our internal testing and should NOT be used in any
+ production system whatsoever.
+
+
+Overview of changes leading to 1.2.5
+Monday, April 4, 2016
+====================================
+
+- Fix GDEF mark-filtering-set, which was broken in 1.2.3.
+
+
+Overview of changes leading to 1.2.4
+Thursday, March 17, 2016
+====================================
+
+- Synthesize GDEF glyph class for any glyph that does not have one in GDEF.
+ I really hope we don't discover broken fonts that shape badly with this
+ change.
+- Misc build and other minor fixes.
+- API changes:
+ - Added HB_NDEBUG. It's fine for production systems to define this to
+ disable high-overhead debugging checks. However, I also reduced the
+ overhead of those checks, so it's a non-issue right now. You can
+ forget it. Just not defining anything at all is fine.
+
+
+Overview of changes leading to 1.2.3
+Thursday, February 25, 2016
+====================================
+
+- Blacklist GDEF table of certain versions of Times New Roman (Bold) Italic,
+ due to bug in glyph class of ASCII double-quote character. This should
+ address "regression" introduced in 1.2.0 when we switched mark zeroing
+ in most shapers from BY_UNICODE_LATE to BY_GDEF_LATE.
+ This fourth release in a week should finally stablize things...
+
+- hb-ot-font's get_glyph() implementation saw some optimizations. Though,
+ might be really hard to measure in real-world situations.
+
+- Also, two rather small API changes:
+
+We now disable some time-consuming internal bookkeeping if built with NDEBUG
+defined. This is a first time that we use NDEBUG to disable debug code. If
+there exist production systems that do NOT want to enable NDEBUG, please let
+me know and I'll add HB_NDEBUG.
+
+Added get_nominal_glyph() and get_variation_glyph() instead of get_glyph()
+
+New API:
+- hb_font_get_nominal_glyph_func_t
+- hb_font_get_variation_glyph_func_t
+- hb_font_funcs_set_nominal_glyph_func()
+- hb_font_funcs_set_variation_glyph_func()
+- hb_font_get_nominal_glyph()
+- hb_font_get_variation_glyph()
+
+Deprecated API:
+- hb_font_get_glyph_func_t
+- hb_font_funcs_set_glyph_func()
+
+Clients that implement their own font-funcs are encouraged to replace
+their get_glyph() implementation with a get_nominal_glyph() and
+get_variation_glyph() pair. The variation version can assume that
+variation_selector argument is not zero. Old (deprecated) functions
+will continue working indefinitely using internal gymnastics; it is
+just more efficient to use the new functions.
+
+
+Overview of changes leading to 1.2.2
+Wednesday, February 24, 2016
+====================================
+
+- Fix regression with mark positioning with fonts that have
+ non-zero mark advances. This was introduced in 1.2.0 while
+ trying to make mark and cursive attachments to work together.
+ I have partially reverted that, so this version is much more
+ like what we had before. All clients who updated to 1.2.0
+ should update to this version.
+
+
+Overview of changes leading to 1.2.1
+Tuesday, February 23, 2016
+====================================
+
+- CoreText: Fix bug with wrong scale if font scale was changed later.
+ https://github.com/libass/libass/issues/212
+- CoreText: Drastically speed up font initialization.
+- CoreText: Fix tiny leak.
+- Group ZWJ/ZWNJ with previous syllable under cluster-level=0.
+ https://github.com/behdad/harfbuzz/issues/217
+- Add test/shaping/README.md about how to add tests to the suite.
+
+
+Overview of changes leading to 1.2.0
+Friday, February 19, 2016
+====================================
+
+- Fix various issues (hangs mostly) in case of memory allocation failure.
+- Change mark zeroing types of most shapers from BY_UNICODE_LATE to
+ BY_GDEF_LATE. This seems to be what Uniscribe does.
+- Change mark zeroing of USE shaper from NONE to BY_GDEF_EARLY. That's
+ what Windows does.
+- Allow GPOS cursive connection on marks, and fix the interaction with
+ mark attachment. This work resulted in some changes to how mark
+ attachments work. See:
+ https://github.com/behdad/harfbuzz/issues/211
+ https://github.com/behdad/harfbuzz/commit/86c68c7a2c971efe8e35b1f1bd99401dc8b688d2
+- Graphite2 shaper: improved negative advance handling (eg. Nastaliq).
+- Add nmake-based build system for Windows.
+- Minor speedup.
+- Misc. improvements.
+
+
+Overview of changes leading to 1.1.3
+Monday, January 11, 2016
+====================================
+
+- Ported Indic shaper to Unicode 8.0 data.
+- Universal Shaping Engine fixes.
+- Speed up CoreText shaper when font fallback happens in CoreText.
+- Documentation improvements, thanks to Khaled Hosny.
+- Very rough directwrite shaper for testing, thanks to Ebrahim Byagowi.
+- Misc bug fixes.
+- New API:
+
+ * Font extents:
+ hb_font_extents_t
+ hb_font_get_font_extents_func_t
+ hb_font_get_font_h_extents_func_t
+ hb_font_get_font_v_extents_func_t
+ hb_font_funcs_set_font_h_extents_func
+ hb_font_funcs_set_font_v_extents_func
+ hb_font_get_h_extents
+ hb_font_get_v_extents
+ hb_font_get_extents_for_direction
+
+ * Buffer message (aka debug):
+ hb_buffer_message_func_t
+ hb_buffer_set_message_func()
+ Actual message protocol to be fleshed out later.
+
+
+Overview of changes leading to 1.1.2
+Wednesday, November 26, 2015
+====================================
+
+- Fix badly-broken fallback shaper that affected terminology.
+ https://github.com/behdad/harfbuzz/issues/187
+- Fix y_scaling in Graphite shaper.
+- API changes:
+ * An unset glyph_h_origin() function in font-funcs now (sensibly)
+ implies horizontal origin at 0,0. Ie, the nil callback returns
+ true instead of false. As such, implementations that have a
+ glyph_h_origin() that simply returns true, can remove that function
+ with HarfBuzz >= 1.1.2. This results in a tiny speedup.
+
+
+Overview of changes leading to 1.1.1
+Wednesday, November 24, 2015
+====================================
+
+- Build fixes, specially for hb-coretext.
+
+
+Overview of changes leading to 1.1.0
+Wednesday, November 18, 2015
+====================================
+
+- Implement 'stch' stretch feature for Syriac Abbreviation Mark.
+ https://github.com/behdad/harfbuzz/issues/141
+- Disable use of decompose_compatibility() callback.
+- Implement "shaping" of various Unicode space characters, even
+ if the font does not support them.
+ https://github.com/behdad/harfbuzz/issues/153
+- If font does not support U+2011 NO-BREAK HYPHEN, fallback to
+ U+2010 HYPHEN.
+- Changes resulting from libFuzzer continuous fuzzing:
+ * Reject font tables that need more than 8 edits,
+ * Bound buffer growth during shaping to 32x,
+ * Fix assertions and other issues at OOM / buffer max-growth.
+- Misc fixes and optimizations.
+- API changes:
+ * All fonts created with hb_font_create() now inherit from
+ (ie. have parent) hb_font_get_empty().
+
+
+Overview of changes leading to 1.0.6
+Thursday, October 15, 2015
+====================================
+
+- Reduce max nesting level in OT lookups from 8 to 6.
+ Should not affect any real font as far as I know.
+- Fix memory access issue in ot-font.
+- Revert default load-flags of fonts created using hb_ft_font_create()
+ back to FT_LOAD_DEFAULT|FT_LOAD_NO_HINTING. This was changed in
+ last release (1.0.5), but caused major issues, so revert.
+ https://github.com/behdad/harfbuzz/issues/143
+
+
+Overview of changes leading to 1.0.5
+Tuesday, October 13, 2015
+====================================
+
+- Fix multiple memory access bugs discovered using libFuzzer.
+ https://github.com/behdad/harfbuzz/issues/139
+ Everyone should upgrade to this version as soon as possible.
+ We now have continuous fuzzing set up, to avoid issues like
+ these creeping in again.
+- Misc fixes.
+
+- New API:
+ * hb_font_set_parent().
+ * hb_ft_font_[sg]et_load_flags()
+ The default flags for fonts created using hb_ft_font_create()
+ has changed to default to FT_LOAD_DEFAULT now. Previously it
+ was defaulting to FT_LOAD_DFEAULT|FT_LOAD_NO_HINTING.
+
+- API changes:
+ * Fonts now default to units-per-EM as their scale, instead of 0.
+ * hb_font_create_sub_font() does NOT make parent font immutable
+ anymore. hb_font_make_immutable() does.
+
+
+Overview of changes leading to 1.0.4
+Wednesday, September 30, 2015
+====================================
+
+- Fix minor out-of-bounds read error.
+
+
+Overview of changes leading to 1.0.3
+Tuesday, September 1, 2015
+====================================
+
+- Start of user documentation, from Simon Cozens!
+- Implement glyph_extents() for TrueType fonts in hb-ot-font.
+- Improve GPOS cursive attachments with conflicting lookups.
+- More fixes for cluster-level = 1.
+- Uniscribe positioning fix.
+
+
+Overview of changes leading to 1.0.2
+Wednesday, August 19, 2015
+====================================
+
+- Fix shaping with cluster-level > 0.
+- Fix Uniscribe backend font-size scaling.
+- Declare dependencies in harfbuzz.pc.
+ FreeType is not declared though, to avoid bugs in pkg-config
+ 0.26 with recursive dependencies.
+- Slightly improved debug infrastructure. More to come later.
+- Misc build fixes.
+
+
+Overview of changes leading to 1.0.1
+Monday, July 27, 2015
+====================================
+
+- Fix out-of-bounds access in USE shaper.
+
+
+Overview of changes leading to 1.0.0
+Sunday, July 26, 2015
+====================================
+
+- Implement Universal Shaping Engine:
+ https://www.microsoft.com/typography/OpenTypeDev/USE/intro.htm
+ http://blogs.windows.com/bloggingwindows/2015/02/23/windows-shapes-the-worlds-languages/
+- Bump version to 1.0.0. The soname was NOT bumped.
+
+
+Overview of changes leading to 0.9.42
+Thursday, July 26, 2015
+=====================================
+
+- New API to allow for retrieving finer-grained cluster
+ mappings if the client desires to handle them. Default
+ behavior is unchanged.
+- Fix cluster merging when removing default-ignorables.
+- Update to Unicode 8.0
+- hb-graphite2 fixes.
+- Misc fixes.
+- Removed HB_NO_MERGE_CLUSTERS hack.
+- New API:
+ hb_buffer_cluster_level_t enum
+ hb_buffer_get_cluster_level()
+ hb_buffer_set_cluster_level()
+ hb-shape / hb-view --cluster-level
+
+
+Overview of changes leading to 0.9.41
+Thursday, June 18, 2015
+=====================================
+
+- Fix hb-coretext with trailing whitespace in right-to-left.
+- New API: hb_buffer_reverse_range().
+- Allow implementing atomic ops in config.h.
+- Fix hb_language_t in language bindings.
+- Misc fixes.
+
+
Overview of changes leading to 0.9.40
Friday, March 20, 2015
=====================================
projects / platform / upstream / harfbuzz.git / blobdiff