[systemd-devel] [ANNOUNCE] systemd 234

Heya! Here we go: https://github.com/systemd/systemd/releases/tag/v234 CHANGES WITH 234: * Meson is now supported as build system in addition to Automake. It is our plan to remove Automake in one of our next releases, so that Meson becomes our exclusive build system. Hence, please start using the Meson build system in your downstream packaging. There's plenty of documentation around how to use Meson, the extremely brief summary: ./autogen.sh && ./configure && make && sudo make install becomes: meson build && ninja -C build && sudo ninja -C build install * Unit files gained support for a new JobRunningTimeoutUSec= setting, which permits configuring a timeout on the time a job is running. This is particularly useful for setting timeouts on jobs for .device units. * Unit files gained two new options ConditionUser= and ConditionGroup= for conditionalizing units based on the identity of the user/group running a systemd user instance. * systemd-networkd now understands a new FlowLabel= setting in the [VXLAN] section of .network files, as well as a Priority= in [Bridge], GVRP= + MVRP= + LooseBinding= + ReorderHeader= in [VLAN] and GatewayOnlink= + IPv6Preference= + Protocol= in [Route]. It also gained support for configuration of GENEVE links, and IPv6 address labels. The [Network] section gained the new IPv6ProxyNDP= setting. * .link files now understand a new Port= setting. * systemd-networkd's DHCP support gained support for DHCP option 119 (domain search list). * systemd-networkd gained support for serving IPv6 address ranges using the Router Advertisment protocol. The new .network configuration section [IPv6Prefix] may be used to configure the ranges to serve. This is implemented based on a new, minimal, native server implementation of RA. * journalctl's --output= switch gained support for a new parameter "short-iso-precise" for a mode where timestamps are shown as precise ISO date values. * systemd-udevd's "net_id" builtin may now generate stable network interface names from IBM PowerVM VIO devices as well as ACPI platform devices. * MulticastDNS support in systemd-resolved may now be explicitly enabled/disabled using the new MulticastDNS= configuration file option. * systemd-resolved may now optionally use libidn2 instead of the libidn for processing internationalized domain names. Support for libidn2 should be considered experimental and should not be enabled by default yet. * "machinectl pull-tar" and related call may now do verification of downloaded images using SUSE-style .sha256 checksum files in addition to the already existing support for validating using Ubuntu-style SHA256SUMS files. * sd-bus gained support for a new sd_bus_message_appendv() call which is va_list equivalent of sd_bus_message_append(). * sd-boot gained support for validating images using SHIM/MOK. * The SMACK code learnt support for "onlycap". * systemd-mount --umount is now much smarter in figuring out how to properly unmount a device given its mount or device path. * The code to call libnss_dns as a fallback from libnss_resolve when the communication with systemd-resolved fails was removed. This fallback was redundant and interfered with the [!UNAVAIL=return] suffix. See nss-resolve(8) for the recommended configuration. * systemd-logind may now be restarted without losing state. It stores the file descriptors for devices it manages in the system manager using the FDSTORE= mechanism. Please note that further changes in other components may be required to make use of this (for example Xorg has code to listen for stops of systemd-logind and terminate itself when logind is stopped or restarted, in order to avoid using stale file descriptors for graphical devices, which is now counterproductive and must be reverted in order for restarts of systemd-logind to be safe. See https://cgit.freedesktop.org/xorg/xserver/commit/?id=dc48bd653c7e101.) * All kernel install plugins are called with the environment variable KERNEL_INSTALL_MACHINE_ID which is set to the machine ID given by /etc/machine-id. If the file is missing or empty, the variable is empty and BOOT_DIR_ABS is the path of a temporary directory which is removed after all the plugins exit. So, if KERNEL_INSTALL_MACHINE_ID is empty, all plugins should not put anything in BOOT_DIR_ABS. Contributions from: Adrian Heine né Lang, Aggelos Avgerinos, Alexander Kurtz, Alexandros Frantzis, Alexey Brodkin, Alex Lu, Amir Pakdel, Amir Yalon, Anchor Cat, Anthony Parsons, Bastien Nocera, Benjamin Gilbert, Benjamin Robin, Boucman, Charles Plessy, Chris Chiu, Chris Lamb, Christian Brauner, Christian Hesse, Colin Walters, Daniel Drake, Danielle Church, Daniel Molkentin, Daniel Rusek, Daniel Wang, Davide Cavalca, David Herrmann, David Michael, Dax Kelson, Dimitri John Ledkov, Djalal Harouni, Dušan Kazik, Elias Probst, Evgeny Vereshchagin, Federico Di Pierro, Felipe Sateler, Felix Zhang, Franck Bui, Gary Tierney, George McCollister, Giedrius Statkevičius, Hans de Goede, hecke, Hendrik Westerberg, Hristo Venev, Ian Wienand, Insun Pyo, Ivan Shapovalov, James Cowgill, James Hemsing, Janne Heß, Jan Synacek, Jason Reeder, João Paulo Rechi Vita, John Paul Adrian Glaubitz, Jörg Thalheim, Josef Andersson, Josef Gajdusek, Julian Mehne, Kai Krakow, Krzysztof Jackiewicz, Lars Karlitski, Lennart Poettering, Lluís Gili, Lucas Werkmeister, Lukáš Nykrýn, Łukasz Stelmach, Mantas Mikulėnas, Marcin Bachry, Marcus Cooper, Mark Stosberg, Martin Pitt, Matija Skala, Matt Clarkson, Matthew Garrett, Matthias Greiner, Matthijs van Duin, Max Resch, Michael Biebl, Michal Koutný, Michal Sekletar, Michal Soltys, Michal Suchanek, Mike Gilbert, Nate Clark, Nathaniel R. Lewis, Neil Brown, Nikolai Kondrashov, Pascal S. de Kloe, Pat Riehecky, Patrik Flykt, Paul Kocialkowski, Peter Hutterer, Philip Withnall, Piotr Szydełko, Rafael Fontenelle, Ray Strode, Richard Maw, Roelf Wichertjes, Ronny Chevalier, Sarang S. Dalal, Sjoerd Simons, slodki, Stefan Schweter, Susant Sahani, Ted Wood, Thomas Blume, Thomas Haller, Thomas H. P. Andersen, Timothée Ravier, Tobias Jungel, Tobias Stoeckmann, Tom Gundersen, Tom Yan, Torstein Husebø, Umut Tezduyar Lindskog, userwithuid, Vito Caputo, Waldemar Brodkorb, WaLyong Cho, Yu, Li-Yu, Yusuke Nojima, Yu Watanabe, Zbigniew Jędrzejewski-Szmek, Дамјан Георгиевски — Berlin, 2017-07-12 Lennart -- Lennart Poettering, Red Hat