1 D-Bus 1.6.4 (2012-07-18)
4 • Detect that users are "at the console" correctly when configured with
5 a non-default path such as --enable-console-auth-dir=/run/console
6 (fd.o #51521, Dave Reisner)
8 • Remove an incorrect assertion from DBusTransport (fd.o #51657,
11 • Make --enable-developer default to "no" (regression in 1.6.2;
12 fd.o #51657, Simon McVittie)
15 · Launch dbus-daemon correctly if its path contains a space
16 (fd.o #49450, Wolfgang Baron)
18 D-Bus 1.6.2 (2012-06-27)
21 The "Ice Cabbage" release.
23 • Change how we create /var/lib/dbus so it works under Automake >= 1.11.4
24 (fd.o #51406, Simon McVittie)
26 • Don't return from dbus_pending_call_set_notify with a lock held on OOM
27 (fd.o #51032, Simon McVittie)
29 • Disconnect "developer mode" (assertions, verbose mode etc.) from
30 Automake maintainer mode. D-Bus developers should now configure with
31 --enable-developer. Automake maintainer mode is now on by default;
32 distributions can disable it with --disable-maintainer-mode.
33 (fd.o #34671, Simon McVittie)
35 • Automatically define DBUS_STATIC_BUILD in static-only Autotools builds,
36 fixing linking when targeting Windows (fd.o #33973; william, Simon McVittie)
39 · Check for libpthread under CMake on Unix (fd.o #47237, Simon McVittie)
41 D-Bus 1.6.0 (2012-06-05)
44 The “soul of this machine has improved” release.
46 This version starts a new stable branch of D-Bus: only bug fixes will
47 be accepted into 1.6.x. Other changes will now go to the 1.7.x branch.
49 Summary of changes since 1.4.x:
52 · PTHREAD_MUTEX_RECURSIVE on Unix
53 · compiler support for 64-bit integers (int64_t or equivalent)
55 • D-Bus Specification v0.19
57 • New dbus-daemon features
58 · <allow own_prefix="com.example.Service"/> rules allow the service to
59 own names like com.example.Service.Instance3
60 · optional systemd integration when checking at_console policies
61 · --nopidfile option, mainly for use by systemd
62 · path_namespace and arg0namespace may appear in match rules
63 · eavesdropping is disabled unless the match rule contains eavesdrop=true
66 · functions to validate various string types (dbus_validate_path() etc.)
67 · dbus_type_is_valid()
68 · DBusBasicValue, a union of every basic type
71 · removed an unsafe reimplementation of recursive mutexes
72 · dbus-daemon no longer busy-loops if it has far too many file descriptors
73 · dbus-daemon.exe --print-address works on Windows
74 · all the other bug fixes from 1.4.20
76 • Other major implementation changes
77 · on Linux, dbus-daemon uses epoll if supported, for better scalability
78 · dbus_threads_init() ignores its argument and behaves like
79 dbus_threads_init_default() instead
80 · removed the per-connection link cache, improving dbus-daemon performance
83 · optional Valgrind instrumentation (--with-valgrind)
84 · optional Stats interface on the dbus-daemon (--enable-stats)
85 · optionally abort whenever malloc() fails (--enable-embedded-tests
86 and export DBUS_MALLOC_CANNOT_FAIL=1)
90 • Be more careful about monotonic time vs. real time, fixing DBUS_COOKIE_SHA1
91 spec-compliance (fd.o #48580, David Zeuthen)
93 • Don't use install(1) within the source/build trees, fixing the build as
94 non-root when using OpenBSD install(1) (fd.o #48217, Antoine Jacoutot)
96 • Add missing commas in some tcp and nonce-tcp addresses, and remove
97 an unused duplicate copy of the nonce-tcp transport in Windows builds
98 (fd.o #45896, Simon McVittie)
100 D-Bus 1.5.12 (2012-03-27)
103 The “Big Book of Science” release.
105 • Add public API to validate various string types:
106 dbus_validate_path(), dbus_validate_interface(), dbus_validate_member(),
107 dbus_validate_error_name(), dbus_validate_bus_name(), dbus_validate_utf8()
108 (fd.o #39549, Simon McVittie)
110 • Turn DBusBasicValue into public API so bindings don't need to invent their
111 own "union of everything" type (fd.o #11191, Simon McVittie)
113 • Enumerate data files included in the build rather than using find(1)
114 (fd.o #33840, Simon McVittie)
116 • Add support for policy rules like <allow own_prefix="com.example.Service"/>
117 in dbus-daemon (fd.o #46273, Alban Crequy)
120 · make dbus-daemon.exe --print-address (and --print-pid) work again
121 on Win32, but not on WinCE (fd.o #46049, Simon McVittie)
122 · fix duplicate case value when compiling against mingw-w64
123 (fd.o #47321, Andoni Morales Alastruey)
125 D-Bus 1.5.10 (2012-02-21)
128 The "fire in Delerium" release.
130 On Unix platforms, PTHREAD_MUTEX_RECURSIVE (as specified in POSIX 2008 Base
131 and SUSv2) is now required.
133 • D-Bus Specification 0.19:
134 · Formally define unique connection names and well-known bus names,
135 and document best practices for interface, bus, member and error names,
136 and object paths (fd.o #37095, Simon McVittie)
137 · Document the search path for session and system services on Unix, and
138 where they should be installed by build systems (fd.o #21620, fd.o #35306;
140 · Document the systemd transport (fd.o #35232, Lennart Poettering)
142 • Make dbus_threads_init() use the same built-in threading implementation
143 as dbus_threads_init_default(); the user-specified primitives that it
144 takes as a parameter are now ignored (fd.o #43744, Simon McVittie)
146 • Allow all configured auth mechanisms, not just one (fd.o #45106,
149 • Improve cmake build system (Ralf Habacker):
150 · simplify XML parser dependencies (fd.o #41027)
151 · generate build timestamp (fd.o #41029)
152 · only create batch files on Windows
153 · fix option and cache syntax
154 · add help-options target
155 · share dbus-arch-deps.h.in with autotools rather than having our
156 own version (fd.o #41033)
158 • Build tests successfully with older GLib, as found in e.g. Debian 6
159 (fd.o #41219, Simon McVittie)
161 • Avoid use of deprecated GThread API (fd.o #44413, Martin Pitt)
163 • Build documentation correctly if man2html doesn't support filenames on
164 its command-line (fd.o #43875, Jack Nagel)
166 • Improve test coverage. To get even more coverage, run the tests with
167 DBUS_TEST_SLOW=1 (fd.o #38285, #42811; Simon McVittie)
169 • Reduce the size of the shared library by moving functionality only used
170 by dbus-daemon, tests etc. into their internal library and deleting
171 unused code (fd.o #34976, #39759; Simon McVittie)
173 • Add dbus-daemon --nopidfile option, overriding the configuration, for
174 setups where the default configuration must include <pidfile/> to avoid
175 breaking traditional init, but the pid file is in fact unnecessary; use
176 it under systemd to improve startup time a bit (fd.o #45520,
179 • Optionally (if configured --with-valgrind) add instrumentation to debug
180 libdbus and associated tools more meaningfully under Valgrind
181 (fd.o #37286, Simon McVittie)
183 • Improve the dbus-send(1) man page (fd.o #14005, Simon McVittie)
185 • Make dbus-protocol.h compatible with C++11 (fd.o #46147, Marc Mutz)
187 • If tests are enabled and DBUS_MALLOC_CANNOT_FAIL is set in the environment,
188 abort on failure to malloc() (like GLib does), to turn runaway memory leaks
189 into a debuggable core-dump if a resource limit is applied (fd.o #41048,
192 • Don't crash if realloc() returns NULL in a debug build (fd.o #41048,
196 · Replace our broken reimplementation of recursive mutexes, which has
197 been broken since 2006, with an ordinary pthreads recursive mutex
198 (fd.o #43744; Sigmund Augdal, Simon McVittie)
199 · Use epoll(7) for a more efficient main loop in Linux; equivalent patches
200 welcomed for other OSs' equivalents like kqueue, /dev/poll, or Solaris
201 event ports (fd.o #33337; Simon McVittie, Ralf Habacker)
202 · When running under systemd, use it instead of ConsoleKit to check
203 whether to apply at_console policies (fd.o #39609, Lennart Poettering)
204 · Avoid a highly unlikely fd leak (fd.o #29881, Simon McVittie)
205 · Don't close invalid fd -1 if getaddrinfo fails (fd.o #37258, eXeC001er)
206 · Don't touch ~/.dbus and ~/.dbus-keyrings when running 'make installcheck'
207 (fd.o #41218, Simon McVittie)
208 · Stop pretending we respect XDG_DATA_DIRS for system services: the launch
209 helper doesn't obey environment variables to avoid privilege escalation
210 attacks, so make the system bus follow the same rules
211 (fd.o #21620, Simon McVittie)
214 · Find the dbus-daemon executable next to the shared library (fd.o #41558;
215 Jesper Dam, Ralf Habacker)
216 · Remove the faulty implementation of _dbus_condvar_wake_all (fd.o #44609,
219 D-Bus 1.5.8 (2011-09-21)
222 The "cross-metering" release.
224 In addition to dead code removal and refactoring, this release contains all
225 of the bugfixes from 1.4.16.
227 • Clean up dead code, and make more warnings fatal in development builds
228 (fd.o #39231, fd.o #41012; Simon McVittie)
230 • If full test coverage is requested via --enable-tests, strictly require
231 Python, pygobject and dbus-python, which are required by some tests; if not,
232 and Python is missing, skip those tests rather than failing
233 (fd.o #37847, Simon McVittie)
235 • When using cmake, provide the same version-info API in the installed headers
236 as for autotools (DBUS_VERSION, etc.) (fd.o #40905, Ralf Habacker)
238 • Add a regression test for fd.o #38005 (fd.o #39836, Simon McVittie)
240 • Make "NOCONFIGURE=1 ./autogen.sh" not run configure (Colin Walters)
242 • Add _DBUS_STATIC_ASSERT and use it to check invariants (fd.o #39636,
245 • Fix duplicates in authors list (Ralf Habacker)
247 • Fix broken links from dbus-tutorial.html if $(htmldir) != $(docdir)
248 (fd.o #39879, Chris Mayo)
250 • Fix a small memory leak, and a failure to report errors, when updating
251 a service file entry for activation (fd.o #39230, Simon McVittie)
254 · Clean up (non-abstract) Unix sockets on bus daemon exit (fd.o #38656;
255 Brian Cameron, Simon McVittie)
256 · On systems that use libcap-ng but not systemd, drop supplemental groups
257 when switching to the daemon user (Red Hat #726953, Steve Grubb)
258 · Make the cmake build work again on GNU platforms (fd.o #29228,
260 · Fix compilation on non-C99 systems that have inttypes.h but not stdint.h,
261 like Solaris (fd.o #40313, Dagobert Michelsen)
262 · Define CMSG_ALIGN, CMSG_LEN, CMSG_SPACE on Solaris < 10
263 (fd.o #40235, Simon McVittie)
264 · Cope with Unixes that don't have LOG_PERROR, like Solaris 10
265 (fd.o #39987, Simon McVittie)
266 · Cope with platforms whose vsnprintf violates both POSIX and C99, like
267 Tru64, IRIX and HP-UX (fd.o #11668, Simon McVittie)
270 · Fix compilation on MSVC, which doesn't understand "inline" with its
271 C99 meaning (fd.o #40000; Ralf Habacker, Simon McVittie)
272 · Fix misuse of GPid in test/dbus-daemon.c (fd.o #40003, Simon McVittie)
273 · Fix cross-compilation to Windows with Automake (fd.o #40003, Simon McVittie)
275 D-Bus 1.5.6 (2011-07-29)
278 The "weird, gravy-like aftertaste" release.
280 In addition to new features and refactoring, this release contains all of the
281 bugfixes from 1.4.14.
283 Potentially incompatible (Bustle and similar debugging tools will need
284 changes to work as intended):
286 • Do not allow match rules to "eavesdrop" (receive messages intended for a
287 different recipient) by mistake: eavesdroppers must now opt-in to this
288 behaviour by putting "eavesdrop='true'" in the match rule, which will
289 not have any practical effect on buses where eavesdropping is not allowed
290 (fd.o #37890, Cosimo Alfarano)
294 • D-Bus Specification version 0.18 (fd.o #37890, fd.o #39450, fd.o #38252;
295 Cosimo Alfarano, Simon McVittie)
296 · add the "eavesdrop" keyword to match rules
297 · define eavesdropping, unicast messages and broadcast messages
298 · stop claiming that match rules are needed to match unicast messages to you
299 · promote the type system to be a top-level section
301 • Use DBUS_ERROR_OBJECT_PATH_IN_USE if dbus_connection_try_register_object_path
302 or dbus_connection_try_register_fallback fails, not ...ADDRESS_IN_USE,
303 and simplify object-path registration (fd.o #38874, Jiří Klimeš)
305 • Consistently use atomic operations on everything that is ever manipulated
306 via atomic ops, as was done for changes to DBusConnection's refcount in
307 1.4.12 (fd.o #38005, Simon McVittie)
309 • Fix a file descriptor leak when connecting to a TCP socket (fd.o #37258,
312 • Make "make check" in a clean tree work, by not running tests until
313 test data has been set up (fd.o #34405, Simon McVittie)
315 • The dbus-daemon no longer busy-loops if it has a very large number of file
316 descriptors (fd.o #23194, Simon McVittie)
318 • Refactor message flow through dispatching to avoid locking violations if
319 the bus daemon's message limit is hit; remove the per-connection link cache,
320 which was meant to improve performance, but now reduces it (fd.o #34393,
323 • Some cmake fixes (Ralf Habacker)
325 • Remove dead code, mainly from DBusString (fd.o #38570, fd.o #39610;
326 Simon McVittie, Lennart Poettering)
328 • Stop storing two extra byte order indicators in each D-Bus message
329 (fd.o #38287, Simon McVittie)
331 • Add an optional Stats interface which can be used to get statistics from
332 a running dbus-daemon if enabled at configure time with --enable-stats
333 (fd.o #34040, Simon McVittie)
335 • Fix various typos (fd.o #27227, fd.o #38284; Sascha Silbe, Simon McVittie)
337 • Documentation (fd.o #36156, Simon McVittie):
338 · let xsltproc be overridden as usual: ./configure XSLTPROC=myxsltproc
339 · install more documentation automatically, including man2html output
340 · put dbus.devhelp in the right place (it must go in ${htmldir})
343 · look for system services in /lib/dbus-1/system-services in addition to all
344 the other well-known locations; note that this should always be /lib,
345 even on platforms where shared libraries on the root FS would go in /lib64,
346 /lib/x86_64-linux-gnu or similar (fd.o #35229, Lennart Poettering)
347 · opt-in to fd passing on Solaris (fd.o #33465, Simon McVittie)
349 • Windows-specific (Ralf Habacker):
350 · fix use of a mutex for autolaunch server detection
351 · don't crash on malloc failure in _dbus_printf_string_upper_bound
353 D-Bus 1.5.4 (2011-06-10)
356 Security (local denial of service):
358 • Byte-swap foreign-endian messages correctly, preventing a long-standing
359 local DoS if foreign-endian messages are relayed through the dbus-daemon
360 (backporters: this is git commit c3223ba6c401ba81df1305851312a47c485e6cd7)
361 (CVE-2011-2200, fd.o #38120, Debian #629938; Simon McVittie)
365 • The constant to use for an infinite timeout now has a name,
366 DBUS_TIMEOUT_INFINITE. It is numerically equivalent to 0x7fffffff (INT32_MAX)
367 which can be used for source compatibility with older versions of libdbus.
369 • If GLib and DBus-GLib are already installed, more tests will be built,
370 providing better coverage. The new tests can also be installed via
371 ./configure --enable-installed-tests
372 for system integration testing, if required. (fd.o #34570, Simon McVittie)
376 • Consistently use atomic operations for the DBusConnection's refcount,
377 fixing potential threading problems (fd.o #38005, Simon McVittie)
379 • Don't use -Wl,--gc-sections by default: in practice the size decrease is
380 small (300KiB on x86-64) and it frequently doesn't work in unusual
381 toolchains. To optimize for minimum installed size, you should benchmark
382 various possibilities for CFLAGS and LDFLAGS, and set the best flags for
383 your particular toolchain at configure time. (fd.o #33466, Simon McVittie)
385 • Use #!/bin/sh for run-with-tmp-session-bus.sh, making it work on *BSD
386 (fd.o #35880, Timothy Redaelli)
388 • Use ln -fs to set up dbus for systemd, which should fix reinstallation
389 when not using a DESTDIR (fd.o #37870, Simon McVittie)
391 • Windows-specific changes:
392 · don't try to build dbus-daemon-launch-helper (fd.o #37838, Mark Brand)
394 D-Bus 1.5.2 (2011-06-01)
397 The "Boar Hunter" release.
399 Notes for distributors:
401 This version of D-Bus no longer uses -fPIE by default. Distributions wishing
402 to harden the dbus-daemon and dbus-launch-helper can re-enable this if their
403 toolchain supports it reliably, via something like:
405 ./configure CFLAGS=-fPIE LDFLAGS="-pie -Wl,-z,relro"
407 or by using distribution-specific wrappers such as Debian's hardening-wrapper.
411 • D-Bus Specification v0.17
412 · Reserve the extra characters used in signatures by GVariant
413 (fd.o #34529, Simon McVittie)
414 · Define the ObjectManager interface (fd.o #34869, David Zeuthen)
415 • Don't force -fPIE: distributions and libtool know better than we do whether
416 it's desirable (fd.o #16621, fd.o #27215; Simon McVittie)
417 • Allow --disable-gc-sections, in case your toolchain offers the
418 -ffunction-sections, -fdata-sections and -Wl,--gc-sections options
419 but they're broken, as seen on Solaris (fd.o #33466, Simon McVittie)
420 • Install dbus-daemon and dbus-daemon-launch-helper in a more normal way
421 (fd.o #14512; Simon McVittie, loosely based on a patch from Luca Barbato)
422 • Ensure that maintainers upload documentation with the right permissions
423 (fd.o #36130, Simon McVittie)
424 • Don't force users of libdbus to be linked against -lpthread, -lrt
425 (fd.o #32827, Simon McVittie)
426 • Log system-bus activation information to syslog (fd.o #35705,
428 • Log messages dropped due to quotas to syslog (fd.o #35358,
430 • Make the nonce-tcp transport work on Unix (fd.o #34569, Simon McVittie)
431 • On Unix, if /var/lib/dbus/machine-id cannot be read, try /etc/machine-id
432 (fd.o #35228, Lennart Poettering)
433 • In the regression tests, don't report fds as "leaked" if they were open
434 on startup (fd.o #35173, Simon McVittie)
435 • Make dbus-monitor bail out if asked to monitor more than one bus,
436 rather than silently using the last one (fd.o #26548, Will Thompson)
437 • Clarify documentation (fd.o #35182, Simon McVittie)
438 • Clean up minor dead code and some incorrect error handling
439 (fd.o #33128, fd.o #29881; Simon McVittie)
440 • Check that compiler options are supported before using them (fd.o #19681,
443 • Remove obsolete workaround for winioctl.h (fd.o #35083, Ralf Habacker)
445 D-Bus 1.5.0 (2011-04-11)
448 The "you never know when you need to tow something from your giant
449 flying shark" release.
451 • D-Bus Specification v0.16
452 · Add support for path_namespace and arg0namespace in match rules
453 (fd.o #24317, #34870; Will Thompson, David Zeuthen, Simon McVittie)
454 · Make argNpath support object paths, not just object-path-like strings,
455 and document it better (fd.o #31818, Will Thompson)
456 • Let the bus daemon implement more than one interface (fd.o #33757,
458 • Optimize _dbus_string_replace_len to reduce waste (fd.o #21261,
460 • Require user intervention to compile with missing 64-bit support
461 (fd.o #35114, Simon McVittie)
462 • Add dbus_type_is_valid as public API (fd.o #20496, Simon McVittie)
463 • Raise UnknownObject instead of UnknownMethod for calls to methods on
464 paths that are not part of the object tree, and UnknownInterface for calls
465 to unknown interfaces in the bus daemon (fd.o #34527, Lennart Poettering)
467 D-Bus 1.4.8 (2011-04-08)
470 The "It's like the beginning of a lobster" release.
472 • Rename configure.in to configure.ac, and update it to modern conventions
473 (fd.o #32245; Javier Jardón, Simon McVittie)
474 • Correctly give XDG_DATA_HOME priority over XDG_DATA_DIRS (fd.o #34496,
476 • Prevent X11 autolaunching if $DISPLAY is unset or empty, and add
477 --disable-x11-autolaunch configure option to prevent it altogether
478 in embedded environments (fd.o #19997, NB#219964; Simon McVittie)
479 • Install the documentation, and an index for Devhelp (fd.o #13495,
480 Debian #454142; Simon McVittie, Matthias Clasen)
481 • If checks are not disabled, check validity of string-like types and
482 booleans when sending them (fd.o #16338, NB#223152; Simon McVittie)
483 • Add UnknownObject, UnknownInterface, UnknownProperty and PropertyReadOnly
484 errors to dbus-shared.h (fd.o #34527, Lennart Poettering)
485 • Break up a huge conditional in config-parser so gcov can produce coverage
486 data (fd.o #10887, Simon McVittie)
487 • List which parts of the Desktop Entry specification are applicable to
488 .service files (fd.o #19159, Sven Herzberg)
489 • Don't suppress service activation if two services have the same Exec=
490 (fd.o #35750, Colin Walters)
492 · Avoid the name ELEMENT_TYPE due to namespace-pollution from winioctl.h
494 · Include _dbus_path_is_absolute in libdbus on Windows, fixing compilation
495 (fd.o #32805, Mark Brand)
497 D-Bus 1.4.6 (2010-02-17)
500 The "1, 2, miss a few, 99, 100" release.
502 • Remove unfinished changes intended to support GTest-based tests,
503 which were mistakenly included in 1.4.4
505 D-Bus 1.4.4 (2010-02-17)
508 • Switch back to using even micro versions for stable releases; 1.4.1
509 should have been called 1.4.2, so skip that version number
510 • Don't leave bad file descriptors being watched when spawning processes,
511 which could result in a busy-loop (fd.o #32992, NB#200248; possibly
512 also LP#656134, LP#680444, LP#713157)
513 • Check for MSG_NOSIGNAL correctly
514 • Fix failure to detect abstract socket support (fd.o #29895)
515 • Make _dbus_system_logv actually exit with DBUS_SYSTEM_LOG_FATAL
516 (fd.o #32262, NB#180486)
517 • Improve some error code paths (fd.o #29981, fd.o #32264, fd.o #32262,
518 fd.o #33128, fd.o #33277, fd.o #33126, NB#180486)
519 • Avoid possible symlink attacks in /tmp during compilation (fd.o #32854)
520 • Tidy up dead code (fd.o #25306, fd.o #33128, fd.o #34292, NB#180486)
521 • Improve gcc malloc annotations (fd.o #32710)
522 • If the system bus is launched via systemd, protect it from the OOM killer
523 • Documentation improvements (fd.o #11190)
524 • Avoid readdir_r, which is difficult to use correctly (fd.o #8284,
525 fd.o #15922, LP#241619)
526 • Cope with invalid files in session.d, system.d (fd.o #19186,
528 • Don't distribute generated files that embed our builddir (fd.o #30285,
530 • Raise the system bus's fd limit to be sufficient for its configuration
531 (fd.o #33474, LP#381063)
532 • Fix syslog string processing
534 • Remove broken gcov parsing code and --enable-gcov, and replace them
535 with lcov HTML reports and --enable-compiler-coverage (fd.o #10887)
537 · avoid live-lock in Windows CE due to unfair condition variables
539 · support credentials-passing (fd.o #32542)
541 · opt-in to thread safety (fd.o #33464)
543 D-Bus 1.4.1 (20 December 2010)
546 • Fix for CVE-2010-4352: sending messages with excessively-nested variants can
547 crash the bus. The existing restriction to 64-levels of nesting previously
548 only applied to the static type signature; now it also applies to dynamic
549 nesting using variants. Thanks to Rémi Denis-Courmont for discoving this
551 • OS X portability fixes, including launchd support.
552 • Windows autolaunch improvements.
555 D-Bus 1.4.0 (6 Sep 2010)
559 D-Bus 1.3.1 (23 June 2010)
561 - New standardized PropertiesChanged signal in the properties interface
562 - Various portability fixes, in particular to Windows platforms
563 - Support forking bus services, for compatibility
565 D-Bus 1.3.0 (29 July 2009)
567 - ability for dbus-send to send to any bus (--address)
568 - file descriptor passing on Unix socket transports
569 - use of GCC atomic intrinsics for better processor support
570 (requires -march=i486 or above for x86 compilation)
571 - thread-safe FD_CLOEXEC setting on recent Linux kernels (2.6.24-27 and up)
572 and glibc (2.9 for pipe2 and 2.10 for accept4)
573 - feature negotiation in the bus daemon