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NEWS: reword a few sentences

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Zbigniew Jędrzejewski-Szmek 2024-04-22 10:49:09 +02:00
parent d714891f05
commit 2e8e26c32f
1 changed files with 42 additions and 37 deletions
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NEWS
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@ -26,7 +26,7 @@ CHANGES WITH 256-rc1:
or /efi/ hierarchies in /etc/fstab. This is to prevent the generator
from interfering with systems where the ESP is explicitly configured
to be mounted at some path, for example /boot/efi/ (this type of
setup is obsolete but still commonly found).
setup is obsolete, but still commonly found).
* The behavior of systemd-sleep and systemd-homed has been updated to
freeze user sessions when entering the various sleep modes or when
@ -78,17 +78,17 @@ CHANGES WITH 256-rc1:
protocol and allow the latest version to be selected automatically if
a "*.v/" directory is specified as the source.
* Encrypted service credentials may now be made accessible to
* Encrypted service credentials can now be made accessible to
unprivileged users. systemd-creds gained new options --user/--uid=
for encrypting/decrypting a credential for a specific user.
* New command-line tool 'importctl' to download, import, and export
disk images via systemd-importd is added with the following verbs:
pull-tar, pull-raw, import-tar, import-raw, import-fs, export-tar,
export-raw, list-transfers, cancel-transfer. This functionality was
previously available in "machinectl", where it was exclusively for
machine image. The new "importctl" generalizes this for sysext,
confext, portable service images, too.
export-raw, list-transfers, and cancel-transfer. This functionality
was previously available in "machinectl", where it was used
exclusively for machine images. The new "importctl" generalizes this
for sysext, confext, and portable service images.
Service Management:
@ -97,9 +97,9 @@ CHANGES WITH 256-rc1:
enabled by default in the initrd.
* New unit setting WantsMountsFor= has been added. It is analogous to
RequiresMountsFor=, but with a Wants= dependency instead of
Requires=. This new logic is used in various places where mounts were
added as dependencies for other settings (WorkingDirectory=-…,
RequiresMountsFor=, but creates a Wants= dependency instead of
Requires=. This new logic is now used in various places where mounts
were added as dependencies for other settings (WorkingDirectory=-…,
PrivateTmp=yes, cryptsetup lines with 'nofail').
* New unit setting MemoryZSwapWriteback= can be used to control the new
@ -107,9 +107,11 @@ CHANGES WITH 256-rc1:
* The manager gained a org.freedesktop.systemd1.StartAuxiliaryScope()
D-Bus method to devolve some processes from a service into a new
scope. This new scope will remain even if the original service unit
is restarted. Control group properties of the new scope are copied
from the originating unit, so various limits are retained.
scope. This new scope will remain running, even when the original
service unit is restarted or stopped. This allows a service unit to
split out some worker processes which need to continue running.
Control group properties of the new scope are copied from the
originating unit, so various limits are retained.
* Units now expose properties EffectiveMemoryMax=,
EffectiveMemoryHigh=, and EffectiveTasksMax=, which report the
@ -136,26 +138,27 @@ CHANGES WITH 256-rc1:
system credential.
* The systemd binary will no longer chainload sysvinit's "telinit"
binary when called under the init/telinit name on a system that
isn't booted with systemd. This previously has been supported to make
sure a distribution that has both init systems installed can be
reasonably switched from one to the other via a simple
reboot. Distributions apparently have lost interest in this, and the
functionality has not been supported on the primary distribution this
was still intended for for a longer time, and hence has been removed
now.
binary when called under the init/telinit name on a system that isn't
booted with systemd. This previously has been supported to make sure
a distribution that has both init systems installed can reasonably
switch from one to the other via a simple reboot. Distributions
apparently have lost interest in this, and the functionality has not
been supported on the primary distribution this was still intended
for for a long time, and hence has been removed now.
* A new concept called "capsules" has been introduced. "Capsules"
encapsulate additional per-user service managers, whose users are
transient and are only defined as long as the service manager
is running (implemented via DynamicUser=1). These service managers run
off home directories defined in /var/lib/capsules/<name>, where
<name> is a the capsule's name. These home directories can contain
regular per-user services and other units. A capsule is started via a
simple "systemctl start capsule@<name>.service". See the
capsule@.service(5) man page for further details. Various systemd
tools (including, and most importantly, systemctl and systemd-run)
have been updated to interact with capsules via the new
* A new concept called "capsules" has been introduced. "Capsules" wrap
additional per-user service managers, whose users are transient and
are only defined as long as the service manager is running. (This is
implemented via DynamicUser=1), allowing a user manager to be used to
manager a group of processes without needing to create an actual user
account. These service managers run with home directories of
/var/lib/capsules/<capsule-name> and can contain regular services and
other units. A capsule is started via a simple "systemctl start
capsule@<name>.service". See the capsule@.service(5) man page for
further details.
Various systemd tools (including, and most importantly, systemctl and
systemd-run) have been updated to interact with capsules via the new
"--capsule="/"-C" switch.
* .socket units gained a new setting PassFileDescriptorsToExec=, taking
@ -163,7 +166,8 @@ CHANGES WITH 256-rc1:
encapsulates are passed to the ExecStartPost=, ExecStopPre=,
ExecStopPost= using the usual $LISTEN_FDS interface. This may be used
for doing additional initializations on the sockets once they are
allocated (for example, install an additional eBPF program on them).
allocated. (For example, to install an additional eBPF program on
them).
* The .socket setting MaxConnectionsPerSource= (which so far put a
limit on concurrent connections per IP in Accept=yes socket units),
@ -173,13 +177,13 @@ CHANGES WITH 256-rc1:
services in a simple Accept=yes mode.
* The service manager will now maintain a counter of soft reboot cycles
the system went through so far. It may be queried via the D-Bus APIs.
the system went through. It may be queried via the D-Bus APIs.
* systemd's execution logic now supports the new pidfd_spawn() API
introduced by glibc 2.39, which allows us to invoke a subprocess in a
target cgroup and get a pidfd back in a single operation.
* systemd/PID 1 will now send an additional sd_notify() message to its
* systemd/PID 1 will now send an additional sd_notify() message to its
supervising VMM or container manager reporting the selected hostname
("X_SYSTEMD_HOSTNAME=") and machine ID ("X_SYSTEMD_MACHINE_ID=") at
boot. Moreover, the service manager will send additional sd_notify()
@ -189,9 +193,10 @@ CHANGES WITH 256-rc1:
reports "ssh-access.target" being reached a VMM/container manager
knows it can now connect to the system via SSH. Finally, a new
sd_notify() message ("X_SYSTEMD_SIGNALS_LEVEL=2") is sent the moment
PID 1 successfully completed installation of its various UNIX process
signal handlers (i.e. the moment where SIGRTMIN+4 sent to PID 1 will
start to have the effect of shutting down the system cleanly).
PID 1 has successfully completed installation of its various UNIX
process signal handlers (i.e. the moment where SIGRTMIN+4 sent to
PID 1 will start to have the effect of shutting down the system
cleanly).
Journal: