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systemd System and Service Manager
+CHANGES WITH 212:
+
+ * When restoring the screen brightness at boot, stay away from
+ the darkest setting or from the lowest 5% of the available
+ range, depending on which is the larger value of both. This
+ should effectively protect the user from rebooting into a
+ black screen, should the brightness have been set to minimum
+ by accident.
+
+ * sd-login gained a new sd_machine_get_class() call to
+ determine the class ("vm" or "container") of a machine
+ registered with machined.
+
+ * sd-login gained new calls
+ sd_peer_get_{session,owner_uid,unit,user_unit,slice,machine_name}(),
+ to query the identity of the peer of a local AF_UNIX
+ connection. They operate similar to their sd_pid_get_xyz()
+ counterparts.
+
+ * PID 1 will now maintain a system-wide system state engine
+ with the states "starting", "running", "degraded",
+ "maintenance", "stopping". These states are bound to system
+ startup, normal runtime, runtime with at least one failed
+ service, rescue/emergency mode and system shutdown. This
+ state is shown in the "systemctl status" output when no unit
+ name is passed. It is useful to determine system state, in
+ particularly when doing so for many systems or containers at
+ once.
+
+ * A new command "list-machines" has been added to "systemctl"
+ that lists all local OS containers and shows their system
+ state (see above), if systemd runs inside of them.
+
+ * systemctl gained a new "-r" switch to recursively enumerate
+ units on all local containers, when used with the
+ "list-unit" command (which is the default one that is
+ executed when no parameters are specified).
+
+ * The GPT automatic partition discovery logic will now honour
+ two GPT partition flags: one may be set on a partition to
+ cause it to be mounted read-only, and the other may be set
+ on a partition to ignore it during automatic discovery.
+
+ * Two new GPT type UUIDs have been added for automatic root
+ partition discovery, for 32bit and 64bit ARM. This is not
+ particularly useful for discovering the root directory on
+ these architectures during bare-metal boots (since UEFI is
+ not common there), but still very useful to allow booting of
+ ARM disk images in nspawn with the -i option.
+
+ * MAC addresses of interfaces created with nspawn's
+ --network-interface= switch will now be generated from the
+ machine name, and thus be stable between multiple invocations
+ of the container.
+
+ * logind will now automatically remove all IPC objects owned
+ by a user if she or he fully logs out. This makes sure that
+ users who are logged out cannot continue to consume IPC
+ resources. This covers SysV memory, semaphores and message
+ queues as well as POSIX shared memory and message
+ queues. Traditionally SysV and POSIX IPC had no life-cycle
+ limits, with this functionality this is corrected. This may
+ be turned off using the RemoveIPC= switch of logind.conf.
+
+ * The systemd-machine-id-setup and tmpfiles tools gained a
+ --root= switch to operate on a specific root directory,
+ instead of /.
+
+ * journald can now forward logged messages to the TTYs of all
+ logged in users ("wall"). This is the default for all
+ emergency messages now.
+
+ * A new tool systemd-journal-remote has been added to stream
+ journal log messages across the network.
+
+ * /sys/fs/cgroup/ is now mounted read-only after all cgroup
+ controller trees are mounted into it. Note that the
+ directories mounted beneath it are not read-only. This is a
+ security measure and is particularly useful because glibc
+ actually includes a search logic to pick any tmpfs it can
+ find to implement shm_open() if /dev/shm is not available
+ (which it might very well be in namespaced setups).
+
+ * machinectl gained a new "poweroff" command to cleanly power
+ down a local OS container.
+
+ * The PrivateDevices= unit file setting will now also drop the
+ CAP_MKNOD capability from the capability bound set, and
+ imply DevicePolicy=closed.
+
+ * PrivateDevices=, PrivateNetwork= and PrivateTmp= is now used
+ comprehensively on all long-running systemd services where
+ this is appropriate.
+
+ * systemd-udevd will now run in a disassociated mount
+ namespace. To mount directories from udev rules make sure to
+ pull in mount units via SYSTEMD_WANTS properties.
+
+ * The kdbus support gained support for uploading policy into
+ the kernel. sd-bus gained support for creating "monitoring"
+ connections that can eavesdrop into all bus communication
+ for debugging purposes.
+
+ * Timestamps may now be specified in seconds since the UNIX
+ epoch Jan 1st, 1970 by specifying "@" followed by the value
+ in seconds.
+
+ * Native tcpwrap support in systemd has been removed. tcpwrap
+ is old code, not really maintained anymore and has serious
+ shortcomings, and better options such as firewalls
+ exist. For setups that require tcpwrap usage, please
+ consider invoking your socket-activated service via tcpd,
+ like on traditional inetd.
+
+ * A new system.conf configuration option
+ DefaultTimerAccuracySec= has been added that controls the
+ default AccuracySec= setting of .timer units.
+
+ * Timer units gained a new WakeSystem= switch. If enabled
+ timers configured this way will cause the system to resume
+ from system suspend (if the system supports that, which most
+ do these days).
+
+ * Timer units gained a new Persistent= switch. If enabled
+ timers configured this way will save to disk when they have
+ been last triggered. This information is then used on next
+ reboot to possible execute overdue timer events, that
+ couldn't take place because the system was powered off. This
+ enables simple anacron-like behaviour for timer units.
+
+ * systemctl's "list-timers" will now also list the time a
+ timer unit was last triggered in addition to the next time
+ it will be triggered.
+
+ * systemd-networkd will now assign predictable IPv4LL
+ addresses to its local interfaces.
+
+ Contributions from: Brandon Philips, Daniel Buch, Daniel Mack,
+ Dave Reisner, David Herrmann, Gerd Hoffmann, Greg
+ Kroah-Hartman, Hendrik Brueckner, Jason St. John, Josh
+ Triplett, Kay Sievers, Lennart Poettering, Marc-Antoine
+ Perennou, Michael Marineau, Michael Olbrich, Miklos Vajna,
+ Patrik Flykt, poma, Sebastian Thorarensen, Thomas Bächler,
+ Thomas Hindoe Paaboel Andersen, Tomasz Torcz, Tom Gundersen,
+ Umut Tezduyar Lindskog, Wieland Hoffmann, Zbigniew
+ Jędrzejewski-Szmek
+
+ -- Berlin, 2014-03-25
+
CHANGES WITH 211:
* A new unit file setting RestrictAddressFamilies= has been