systemd is a system and service manager that runs as PID 1 and starts
the rest of the system. It provides aggressive parallelization
capabilities, uses socket and D-Bus activation for starting services,
offers on-demand starting of daemons, keeps track of processes using
Linux control groups, maintains mount and automount points, and
implements an elaborate transactional dependency-based service control
logic. systemd supports SysV and LSB init scripts and works as a
replacement for sysvinit. Other parts of this package are a logging daemon,
utilities to control basic system configuration like the hostname,
date, locale, maintain a list of logged-in users, system accounts,
runtime directories and settings, and daemons to manage simple network
configuration, network time synchronization, log forwarding, and name
resolution.
* Mon Dec 01 2025 systemd maintenance team <systemd-maint@redhat.com> - 252-55.7
- core: fix array size in unit_log_resources() (RHEL-132120)
* Mon Nov 24 2025 systemd maintenance team <systemd-maint@redhat.com> - 252-55.6
- timer: rebase last_trigger timestamp if needed (RHEL-127022)
* Tue Nov 18 2025 systemd maintenance team <systemd-maint@redhat.com> - 252-55.5
- test: rename TEST-53-ISSUE-16347 to TEST-53-TIMER (RHEL-127022)
- test: restarting elapsed timer shouldn't trigger the corresponding service (RHEL-127022)
- test: check the next elapse timer timestamp after deserialization (RHEL-127022)
- timer: don't run service immediately after restart of a timer (RHEL-127022)
- test: store and compare just the property value (RHEL-127022)
- timer: rebase the next elapse timestamp only if timer didn't already run (RHEL-127022)
- coredump: handle ENOBUFS and EMSGSIZE the same way (RHEL-126114)
* Thu Nov 06 2025 systemd maintenance team <systemd-maint@redhat.com> - 252-55.4
- cryptsetup: Add optional support for linking volume key in keyring. (RHEL-118294)
- cryptsetup: fix typo (RHEL-118294)
- cryptsetup: HAVE_CRYPT_SET_KEYRING_TO_LINK is always defined (RHEL-118294)
- basic: add PIDFS magic (#31709) (RHEL-118294)
- time-util: make USEC_TIMESTAMP_FORMATTABLE_MAX for 32bit system off by one day (RHEL-118294)
- coredump: make check that all argv[] meta data fields are passed strict (RHEL-104138)
- coredump: restore compatibility with older patterns (RHEL-104138)
- coredump: use %d in kernel core pattern (RHEL-104138)
- pidref: add structure that can reference a pid via both pidfd and pid_t (RHEL-104138)
- fd-util: introduce parse_fd() (RHEL-104138)
- coredump: add support for new %F PIDFD specifier (RHEL-104138)
* Fri Sep 12 2025 systemd maintenance team <systemd-maint@redhat.com> - 252-55.2
- Revert "test-time-util: disable failing tests" (RHEL-110954)
- test: use get_timezones() to iterate all known timezones (RHEL-110954)
- test-time-util: do not fail on DST change (RHEL-110954)
- test-time-util: suppress timestamp conversion failures for Africa/Khartoum timezone (RHEL-110954)
- test-time-util: do more suppression of time zone checks (RHEL-110954)
- test-time-util: fix truncation of usec to sec (RHEL-110954)
- test: unset TZ before timezone-sensitive unit tests are run (RHEL-110954)
- meson: extend timeout for test-time-util (RHEL-110954)
- time-util: use DEFINE_STRING_TABLE_LOOKUP_TO_STRING() macro (RHEL-110954)
- time-util: align string table (RHEL-110954)
- time-util: rename variables (RHEL-110954)
- time-util: add assertions (RHEL-110954)
- time-util: drop redundant else (RHEL-110954)
- time-util: do not use strdupa() (RHEL-110954)
- time-util: use result from startswith_no_case() (RHEL-110954)
- time-util: use usec_add() and usec_sub_unsigned() (RHEL-110954)
- time-util: shorten code a bit (RHEL-110954)
- time-util: rename variables (RHEL-110954)
- time-util: drop unnecessary assignment of timezone name (RHEL-110954)
- time-util: make parse_timestamp() use the RFC-822/ISO 8601 standard timezone spec (RHEL-110954)
- time-util: fix typo (RHEL-110954)
- ci: bump the tools tree to F42 (RHEL-110954)
* Fri Aug 29 2025 systemd maintenance team <systemd-maint@redhat.com> - 252-55.1
- meson: /etc/systemd/network is also used by udevd (RHEL-111611)
- test: add tests for format_timestamp() and parse_timestamp() with various timezone (RHEL-110954)
- test-time-util: disable failing tests (RHEL-110954)
- test: test parse_timestamp() in various timezone (RHEL-110954)
- systemctl: logind: add missing asserts (RHEL-110954)
- systemctl: logind: make logind_schedule_shutdown accept action as param (RHEL-110954)
- systemctl: add option --when for scheduled shutdown (RHEL-110954)
- test-time-util: add test cases to invalidate "show" and "cancel" (RHEL-110954)
- sd-bus: make bus_add_match_full accept timeout (RHEL-111630)
- core/unit: add get_timeout_start_usec in UnitVTable and define it for service (RHEL-111630)
- core/unit: increase the NameOwnerChanged/GetNameOwner timeout to the unit's start timeout (RHEL-111630)
- core,sd-bus: drop empty lines between function call and error check (RHEL-111630)
- core: do not disconnect from bus when failed to install signal match (RHEL-111630)
- dbus: stash the subscriber list when we disconenct from the bus (RHEL-111630)
- manager: s/deserialized_subscribed/subscribed_as_strv (RHEL-111630)
- bus-util: do not reset the count returned by sd_bus_track_count_name() (RHEL-111630)
- core/manager: restore bus track deserialization cleanup in manager_reload() (RHEL-111630)
- core/manager: drop duplicate bus track deserialization (RHEL-111630)
- sd-bus/bus-track: use install_callback in sd_bus_track_add_name() (RHEL-111630)
* Fri Aug 15 2025 systemd maintenance team <systemd-maint@redhat.com> - 252-55
- tree-wide: check more log message format in log_struct() and friends (RHEL-100353)
- build: add some coloring to --version output (RHEL-100353)
- core: output log cycle path in one log message, not many (RHEL-100353)
- core: make log cycle messages recognizable via message IDs (RHEL-100353)
- core: change ordering cycle log message log levels (RHEL-100353)
- core: cast log_oom() got void (RHEL-100353)
- core: when removing a job from a transaction, include in structured log message which (RHEL-100353)
- catalog: add entries for the order cycle log messages (RHEL-100353)
- tree-wide: check more log message format in log_struct() and friends (RHEL-100353)
- core/transaction: do not attempt to log "n/a" as a journal field (RHEL-100353)
* Wed Aug 13 2025 systemd maintenance team <systemd-maint@redhat.com> - 252-54
- unit: add conditions and deps to make oomd.socket and .service consistent (RHEL-90417)
- udev/net_id: introduce naming scheme for RHEL-9.7 (RHEL-25516)
- Add a set of assertion macros to tests.h (ASSERT_OK(), ASSERT_EQ(), ASSERT_GE(), ASSERT_LE()) that log the failed condition before crashing and convert test-gpt.c test file to use them (RHEL-103753)
- Follow up with the PR #31819 (RHEL-103753)
- Added more ASSERT macro and also make some test file to use them (RHEL-103753)
- sd-event: drop inotify event from buffer when no event source is triggered (RHEL-103753)
- test: add test case for issue #38265 (RHEL-103753)
- test: answer 2nd mdadm --create question for compat with new version (RHEL-79977)
- sysusers: cross-check user and group names too (RHEL-72572)
- test-sysusers: check group creation with matching user entry (RHEL-72572)
- user-sessions: do not remove /etc/nologin (RHEL-85467)
- hwdb: f20 → micmute (RHEL-72697)
- hwdb: f21 → touchpad_toggle (RHEL-72697)
- hwdb: f22 → touchpad_on (RHEL-72697)
- hwdb: f23 → touchpad_off (RHEL-72697)
- hwdb: drop some now redundant mappings (RHEL-72697)
- hwdb: Add micmute for System76 (RHEL-72697)
- hwdb: Add newer System76 Pangolins (RHEL-72697)
- hwdb: WALTOP International Corp. Slim Tablet Stylus (RHEL-72697)
- hwdb: add MSI Claw 8 AT Keyboard Scancodes (#36180) (RHEL-72697)
- Adds asus T103HAF rotation matrix to 60-sensor.hwdb (#36177) (RHEL-72697)
- hwdb: fix screen rotation for EXO Wings 2in1 w1125 (#36283) (RHEL-72697)
- hwdb: XBox Series Elite controller modalias entry has been added. (#36305) (RHEL-72697)
- hwdb: add front button support for MSI Claw 7 AI+ A2VM (RHEL-72697)
- hwdb: add accel orientation and location for the BMAX Y14 (RHEL-72697)
- hwdb.d: add support for Akoya P15645 (RHEL-72697)
- hwdb.d: add ANP09 Intel n100 tablet sensor configuration (#36390) (RHEL-72697)
- hwdb: add axis range corrections for the Lenovo Yoga Slim 7 14ARE05 (RHEL-72697)
- hwdb: add GOLD WARRIOR SIM PhoenixRC 10411R (RHEL-72697)
- hwdb: add Code Mercenaries Hard- und Software GmbH Virtual RC USB (RHEL-72697)
- hwdb: Add accel orientation quirk for the GPD Pocket 4 (RHEL-72697)
- hwdb: add rotation profile matrix for Rog Ally X (2024) (#36591) (RHEL-72697)
- hwdb: fix backspace not working on HP Pavilion laptop (#36777) (RHEL-72697)
- hwdb/keyboard: Map FN key on TUXEDO NB02 devices (RHEL-72697)
- hwdb: add G-Mode key support (#37175) (RHEL-72697)
- hwdb/keyboard: Map FN key on TUXEDO InfinityFlex 14 Gen1 (RHEL-72697)
- hwdb: add HP 150 Wired Mouse (#37341) (RHEL-72697)
- Add emulated release to G-Mode key (RHEL-72697)
- hwdb: keyboard: Add Alienware special keys (RHEL-72697)
- hwdb: add bladeRF SDR devices (RHEL-72697)
- hwdb: append ID_SOFTWARE_RADIO to hwdb parser (RHEL-72697)
- hwdb.d: reword and simplify boilerplate texts (RHEL-72697)
- hwdb.d: update/expand boilerplate on various hwdb files (RHEL-72697)
- hwdb: say that settings can be also set to 0 (RHEL-72697)
- hwdb: add Analog Devices PLUTO SDR (RHEL-72697)
- hwdb: append ID_MM_DEVICE_IGNORE to hwdb parser (RHEL-72697)
- hwdb: run "update-hwdb" (RHEL-72697)
- hwdb: run "update-hwdb-autosuspend" (RHEL-72697)
- hwdb: add missing PLUTO SDR vendor name (RHEL-72697)
- hwdb: add Ettus Research SDR devices (RHEL-72697)
- hwdb: add RTL-SDR devices (RHEL-72697)
- hwdb: merge entries for Ettus Research B200 (RHEL-72697)
- hwdb: make Saitek PLC Pro Flight Rudder Pedals a joystick (#37601) (RHEL-72697)
- hwdb: fix touchpad for ASUS X1504ZA (#37696) (RHEL-72697)
- hwdb: add support for Loupedeck devices (RHEL-72697)
- hwdb: Acer Nitro ANV15-51 Mic Toggle (RHEL-72697)
- hwdb: Added Beacn and TC-Helicon Audio controllers (#37798) (RHEL-72697)
- hwdb: Add support for Lenovo IdeaPad Slim 5 series (RHEL-72697)
- hwdb: Add hwbd definitions for maker tools (RHEL-72697)
- hwdb: Add accel orientation quirk for the Microtech e-tab Pro (RHEL-72697)
- hwdb: add 70-maker-tools.hwdb to meson.build (RHEL-72697)
- hwdb: fix typo in 70-maker-tools.hwdb (RHEL-72697)
- hwdb: update (RHEL-72697)
- Fix Positivo K116J search key and www shortcut (RHEL-72697)
- hwdb: Acer Nitro ANV15-51 Nitro Sense Toggle (RHEL-72697)
- hwdb: several cleanups (RHEL-72697)
- hwdb: disable Asus ROG keyboards sending poweroff (RHEL-72697)
- hwdb: update (RHEL-72697)
- hwdb: update autosuspend rules (RHEL-72697)
- hwdb: set touchpad resolution for ThinkPad T14 Gen2a (RHEL-72697)
- Revert "hwdb: disable Asus ROG keyboards sending poweroff" (RHEL-72697)
- hwdb: Add launch emoji keyboard mapping for Asus M1607KA (RHEL-72697)
- Enable KEY_PERFORMANCE key present on Linux 6.17 (RHEL-72697)
- flush_ports: flush POSIX message queues properly (RHEL-90860)
- kernel-install: add --entry-type=type1|type2 option to kernel-install (RHEL-83932)
- kernel-install: add --entry-type=type1|type2 option to kernel-install.in (RHEL-83932)
- kernel-install: do not mix || and && (RHEL-83932)
- man/kernel-install: mention --entry-type= option in the man page (RHEL-83932)
- cgroup: add support for memory.peak (RHEL-95797)
- core: include peak memory in unit_log_resources() (RHEL-95797)
- run: include peak memory in output (RHEL-95797)
- core: ensure init.scope is realized after drop-ins have been loaded (RHEL-103488)
- core: add possibility to not track certain unit types (RHEL-89796)
* Tue Apr 15 2025 systemd maintenance team <systemd-maint@redhat.com> - 252-53
- man: mention that rhel-9.0 net naming scheme is the same as v251 (RHEL-86891)
- backlight: Drop support for actual_brightness (RHEL-86714)
* Wed Apr 09 2025 systemd maintenance team <systemd-maint@redhat.com> - 252-52
- man: be even clearer that tmpfiles user/group/mode are applied on existing inodes (RHEL-15051)
- unit: always return 1 in log_kill (RHEL-78170)
- ci: enable mkosi workflow for z-stream branches (RHEL-79977)
- ci(mkosi): bump fedora version from 39 to 41 (RHEL-79977)
