Overview of changes in GLib 2.89.0, 2026-05-20

* Integrate better with the System Trash on macOS (#1161, work by Byoungchan Lee)

* Add `g_set_strv()`, `g_set_strv_take()` and `g_set_str_take()` convenience
  functions (#3907, !5118, work by Christian Hergert and Philip Withnall)
* Add support for `GTypeInstance`-derived types in generic marshaller (#3954,
  work by Christian Hergert)

* Change `g_get_num_processors()` to report number of performance cores, rather
  than number of performance+low-power cores on macOS (!5153, work by John Cupitt)

* Add support for `XDG_PROJECTS_DIR` special directory (!5141, work by
  Emmanuele Bassi and Jakub Steiner)

* Bugs fixed:
  - #1161 g_file_trash() Files not moved to System Trash on Mac OSX
  - #1853 DBus activated GApplications and G_APPLICATION_HANDLES_OPEN (Guido
    Günther)
  - #2173 g_ascii_strtod() spec doesn't match C99/C11 standard for underflow
    behavior (depuc8)
  - #3069 gio/trash test fails on macOS
  - #3791 g_error causes -Wanalyzer-infinite-loop warnings in downstream code
    (correctmost)
  - #3854 GRegex uses int for string length (Philip Withnall)
  - #3907 Add g_set_strv() helper similar to g_set_str() (Christian Hergert)
  - #3911 GMarkup chokes on BOM
  - #3932 (#YWH-PGM9867-204) Integer Underflow (CWE-191) on GLib through
    gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml" (Philip
    Withnall)
  - #3954 Generic marshaller lacks support for GTypeInstance derived types
    (Christian Hergert)
  - #3958 FTBFS for vs2019-arm64 in libcharset due to undefined _CountOneBits64
  - !4990 gdbusauthmechanismsha1: Ignore G_DBUS_COOKIE_SHA1_KEYRING_DIR when
    suid
  - !5094 gtestdbus: Keep config file around until bus daemon exits
  - !5099 liststore: Micro-optimize no-op bulk operations
  - !5102 g_base64_decode_step: fix documented type of in
  - !5103 gdbusmessage: Documentation improvements
  - !5106 gmarkup: Add api to get attribute locations
  - !5107 gmessages: Remove incorrect callback annotations
  - !5112 docs: Clarify default/user signal handlers
  - !5115 build: Post-release version bump
  - !5116 Update Slovenian translation
  - !5117 fuzzing: Add a fuzz test for g_markup_escape_text()
  - !5118 gstrfuncs: Add g_set_str_take() helper function
  - !5119 tests: Check that g_markup_escape_text() returns something parseable
  - !5120 Update Chinese (China) translation
  - !5121 gio: Apply property accessor annotations to GDBus types
  - !5123 Update Romanian translation
  - !5124 gvariant: Tweak GVariantIter heap allocation casting
  - !5125 gregex: Fix some missing Markdown formatting in docs
  - !5126 Add missing annotations
  - !5127 libffi: don't build testsuite when building as subproject
  - !5128 gmarkup: Swap the argument order for g_realloc_n()
  - !5136 docs: Clarify UTF-8 validity for functions which accept a length
  - !5138 Update Slovenian translation
  - !5140 Update Romanian translation
  - !5141 Support XDG_PROJECTS_DIR
  - !5142 gsocketconnection: Fix annotations for get_socket()
  - !5145 gvarianttype: use pure attribute, not inappropriate const
  - !5146 gmessages: Add missing stdlib.h include for abort()
  - !5148 registrysettingsbackend: Chain up vfuncs
  - !5149 gtype: Improve G_DEFINE and G_DECLARE docs
  - !5153 g_get_num_processors(): on macOS, report n_pcore
  - !5155 Update German translation
  - !5157 Update Dutch translation
  - !5158 gsocket: Fix g_socket_new_from_fd() on unbound sockets on windows
  - !5159 gvariant: Tweak GVariantIter heap allocation size
  - !5161 [docs] Gio.MenuModel: Fix bulleted list
  - !5162 gvariant: Match allocation size of g_slice_new to g_slice_free
  - !5163 gvariant test: Fix a leak
  - !5164 tests: Avoid undefined signed left-shift in bitlock test
  - !5167 docs: Add docs for G_GNUC_FLAG_ENUM
  - !5176 gnulib: Fix unused flags variable warning
  - !5177 gio/tests/pollable.c: Fix test on FreeBSD
  - !5180 meson: Add valgrind suppression file to VALGRIND_OPTS in devenv
  - !5182 Meson: Don't hardcode FFI_STATIC_BUILD / G_INTL_STATIC_COMPILATION
  - !5183 gio/tests/pollable.c: Conditionalize on FreeBSD version in the
    /dev/null test case
  - !5185 gio/gdesktopappinfo: Add precondition assertions
  - !5187 Add safety documentation regarding use of g_shell_quote()
  - !5188 Improve performance of g_array_maybe_expand()
  - Chinese (China) (luming zh)
  - Dutch (Nathan Follens)
  - Romanian (Antonio Marin)
  - Slovenian (Martin)