Announcing dbus 1.13.20

This is essentially a beta for 1.14.0; please test, but please do not
upgrade to this version in stable distributions right now.
Details of what we expect to be in 1.14.0 can be found here:
https://gitlab.freedesktop.org/dbus/dbus/-/blob/master/NEWS

<http://dbus.freedesktop.org/releases/dbus/dbus-1.13.20.tar.xz>
<http://dbus.freedesktop.org/releases/dbus/dbus-1.13.20.tar.xz.asc>
git tag: dbus-1.13.20

The “not how anyone wanted to learn the Greek alphabet” release.

Dependencies:

• Building using CMake now requires CMake 3.4.

Enhancements:

• D-Bus Specification 0.37:
  · Update recommendations for DBUS_COOKIE_SHA1 timeouts
    (dbus!171, Simon McVittie)
  · Clarify padding requirements for arrays and variants
    (dbus!203, Zeeshan Ali)
  · Describe where the interoperable machine ID comes from
    (dbus!198, Thomas Kluyver)
  · Clarify use of dictionary (array of dict-entry) types
    (dbus#347, Ralf Habacker)

• When using the "user bus" (--enable-user-session), put the dbus-daemon
  in the session slice (dbus!219, David Redondo)

Feature removal:

• Disable the experimental Containers1 interface that was added in 1.13.0.
  It is incomplete and not ready for production use, so we're disabling it
  in preparation for a new 1.14.x stable branch; the code remains present
  and will be re-enabled later, but there is no longer a build-time
  configuration option to enable it. (dbus!236, Simon McVittie)

Bug fixes:

• Avoid malloc() after fork on non-GNU libc (dbus!181, Jean-Louis Fuchs)

• Don't return successfully from RemoveMatch if the match rule didn't
  exist (dbus#351, Simon McVittie)

• On Windows, fix a race condition where dbus-run-session could start the
  wrapped application before the dbus-daemon was ready
  (dbus#297, Ralf Habacker)

• Fix build with clang 13 by using Standard C offsetof where available
  (dbus!237, Simon McVittie)

• Fix build of tests on FreeBSD (dbus!167, Simon McVittie)

• Various CMake build improvements
  (dbus#310, dbus!213, dbus#319, dbus!217, dbus#346, dbus#356;
  Ralf Habacker)

• Set IMPORTED_IMPLIB property in CMake metadata installed via Autotools
  with mingw toolchain
  (dbus!172, Julien Schueller)

• Make documentation build more reproducible
  (dbus!189, dbus!238; Arnout Engelen, Simon McVittie)

• On Unix, make X11 autolaunch cope with slashes in DISPLAY
  (dbus#8, dbus#311; William Earley)

• Don't try to raise RLIMIT_NOFILE beyond OPEN_MAX on macOS
  (dbus#309, William Earley)

• Improve SELinux audit messages (dbus!173, Chris PeBenito)

• Validate various strings in dbus-send to avoid client-side assertion
  failures on invalid input (dbus#338, Simon McVittie)

• Fix a memory leak in a unit test (dbus!208, David King)

• In Autotools builds, use pkg-config in preference to AC_PATH_XTRA
  (dbus!212, Scott Hamilton)

• On Windows, prevent (theoretical?) stack buffer overflow with very
  long paths (dbus!221, Ralf Habacker)

• Fix build with newer mingw compilers (dbus#355, Ralf Habacker)

• Various Windows error-handling fixes
  (dbus!229, dbus#357, dbus#279, dbus#360, dbus#365;
  Ralf Habacker, Simon McVittie)

• Clearer diagnostics when tests are skipped (dbus#363, Simon McVittie)

• CI improvements
  (dbus#318, dbus!197, dbus!187, dbus!196, dbus!201, dbus#359;
  Simon McVittie, Ralf Habacker, Arnout Engelen, Marc-André Lureau)

• Typo fixes, etc.
  (dbus!183, dbus!182; Chigozirim Chukwu, Samy Mahmoudi)