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NEWS: open for v255 business

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Luca Boccassi 2023-07-28 23:42:46 +01:00
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NEWS
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systemd System and Service Manager
CHANGES WITH 255 in spe:
Announcements of Future Feature Removals and Incompatible Changes:
* Support for split-usr (/usr/ mounted separately during late boot,
instead of being mounted by the initrd before switching to the rootfs)
and unmerged-usr (parallel directories /bin/ and /usr/bin/, /lib/ and
/usr/lib/, …) has been removed. For more details, see:
https://lists.freedesktop.org/archives/systemd-devel/2022-September/048352.html
* We intend to remove cgroup v1 support from a systemd release after
the end of 2023. If you run services that make explicit use of
cgroup v1 features (i.e. the "legacy hierarchy" with separate
hierarchies for each controller), please implement compatibility with
cgroup v2 (i.e. the "unified hierarchy") sooner rather than later.
Most of Linux userspace has been ported over already.
* Support for System V service scripts is now deprecated and will be
removed in a future release. Please make sure to update your software
*now* to include a native systemd unit file instead of a legacy
System V script to retain compatibility with future systemd releases.
* Support for the SystemdOptions EFI variable is deprecated.
'bootctl systemd-efi-options' will emit a warning when used. It seems
that this feature is little-used and it is better to use alternative
approaches like credentials and confexts. The plan is to drop support
altogether at a later point, but this might be revisited based on
user feedback.
* systemd-run's switch --expand-environment= which currently is disabled
by default when combined with --scope, will be changed in a future
release to be enabled by default.
CHANGES WITH 254:
Announcements of Future Feature Removals and Incompatible Changes: