+ * When sending a file descriptor (fd) to the service manager to keep
+ track of, using the sd_notify() mechanism, a new parameter FDPOLL=0
+ may be specified. If passed the service manager will refrain from
+ poll()ing on the file descriptor. Traditionally (and when the
+ parameter is not specified), the service manager will poll it for
+ POLLHUP or POLLERR events, and immediately close the fds in that
+ case.
+
+ * The service manager (PID1) gained a new D-Bus method call
+ SetShowStatus() which may be used to control whether it shall show
+ boot-time status output on the console. This method has a similar
+ effect to sending SIGRTMIN+20/SIGRTMIN+21 to PID 1.
+
+ * The sd-bus API gained a number of convenience functions that take
+ va_list arguments rather than "...". For example, there's now
+ sd_bus_call_methodv() to match sd_bus_call_method(). Those calls make
+ it easier to build wrappers that accept variadic arguments and want
+ to pass a ready va_list structure to sd-bus.
+
+ * sd-bus vtable entries can have a new SD_BUS_VTABLE_ABSOLUTE_OFFSET
+ flag which alters how the userdata pointer to pass to the callbacks
+ is determined. When the flag is set, the offset field is converted
+ as-is into a pointer, without adding it to the object pointer the
+ vtable is associated with.
+
+ * sd-bus now exposes four new functions:
+ sd_bus_interface_name_is_valid() + sd_bus_service_name_is_valid() +
+ sd_bus_member_name_is_valid() + sd_bus_object_path_is_valid() will
+ validate strings to check if they qualify as various D-Bus concepts.
+
+ * The sd-bus API gained the SD_BUS_METHOD_WITH_ARGS(),
+ SD_BUS_METHOD_WITH_ARGS_OFFSET() and SD_BUS_SIGNAL_WITH_ARGS() macros
+ that simplify adding argument names to D-Bus methods and signals.
+
+ * The man pages for the sd-bus and sd-hwdb APIs have been completed.
+
+ * Various D-Bus APIs of systemd daemons now have man pages that
+ document the methods, signals and properties.
+
+ * The expectations on user/group name syntax are now documented in
+ detail; documentation on how classic home directories may be
+ converted into home directories managed by homed has been added;
+ documentation regarding integration of homed/userdb functionality in
+ desktops has been added:
+
+ https://systemd.io/USER_NAMES
+ https://systemd.io/CONVERTING_TO_HOMED
+ https://systemd.io/USERDB_AND_DESKTOPS
+
+ * Documentation for the on-disk Journal file format has been updated
+ and has now moved to:
+
+ https://systemd.io/JOURNAL_FILE_FORMAT
+
+ * The interface for containers (https://systemd.io/CONTAINER_INTERFACE)
+ has been extended by a set of environment variables that expose
+ select fields from the host's os-release file to the container
+ payload. Similarly, host's os-release files can be mounted into the
+ container underneath /run/hosts. Together, those mechanisms provide a
+ standardized way to expose information about the host to the
+ container payload. Both interfaces are implemented in systemd-nspawn.
+
+ * All D-Bus services shipped in systemd now implement the generic
+ LogControl1 D-Bus API which allows clients to change log level +
+ target of the service during runtime.
+
+ Contributions from: 24bisquitz, Adam Nielsen, Alan Perry, Alexander
+ Malafeev, Alin Popa, Amos Bird, Andreas Rammhold, AndreRH, Andrew
+ Doran, Anita Zhang, Ankit Jain, antznin, Arnaud Ferraris, Arthur Moraes
+ do Lago, Arusekk, Balaji Punnuru, Balint Reczey, Bastien Nocera,
+ bemarek, Benjamin Berg, Benjamin Dahlhoff, Benjamin Robin, Chris Down,
+ Chris Kerr, Christian Göttsche, Christian Hesse, Christian Oder,
+ Ciprian Hacman, codicodi, Corey Hinshaw, Daan De Meyer, Dana Olson, Dan
+ Callaghan, Daniel Fullmer, Daniel Rusek, Dan Streetman, Dave Reisner,
+ David Edmundson, David Wood, Denis Pronin, Diego Escalante Urrelo,
+ Dimitri John Ledkov, dolphrundgren, duguxy, Einsler Lee, Elisei Roca,
+ Emmanuel Garette, Eric Anderson, Eric DeVolder, Evgeny Vereshchagin,
+ ExtinctFire, fangxiuning, Ferran Pallarès Roca, Filipe Brandenburger,
+ Finn, Florian Klink, Franck Bui, Frantisek Sumsal, Gaoyi, gaurav, Georg
+ Müller, Gergely Polonkai, Giedrius Statkevičius, Gigadoc2, gogogogi,
+ gzjsgdsb, Hans de Goede, Haochen Tong, ianhi, ignapk, Jakov Smolic,
+ James T. Lee, Jan Janssen, Jan Klötzke, Jan Palus, Jay Burger, Jeremy
+ Cline, Jérémy Rosen, Jian-Hong Pan, Jiri Slaby, Joel Shapiro, Joerg
+ Behrmann, Jörg Thalheim, Jouke Witteveen, Kai-Heng Feng, Kenny
+ Levinsen, Kevin Kuehler, Kumar Kartikeya Dwivedi, layderv, laydervus,
+ Lénaïc Huard, Lennart Poettering, Lidong Zhong, Luca Boccassi, Luca
+ BRUNO, Lucas Werkmeister, Lukas Klingsbo, Lukáš Nykrýn, Łukasz
+ Stelmach, Maciej S. Szmigiero, MadMcCrow, Marc-André Lureau, Marcel
+ Holtmann, Marc Kleine-Budde, Martin Hundebøll, Matthew Leeds, Matt
+ Ranostay, Maxim Fomin, MaxVerevkin, Michael Biebl, Michael Chapman,
+ Michael Gubbels, Michael Marley, Michał Bartoszkiewicz, Michal Koutný,
+ Michal Sekletar, Michal Sekletár, Mike Gilbert, Mike Kazantsev, ml,
+ Motiejus Jakštys, nabijaczleweli, nerdopolis, Niccolò Maggioni, Niklas
+ Hambüchen, Norbert Lange, Paul Cercueil, pelzvieh, Peter Hutterer,
+ Piero La Terza, Pieter Lexis, Piotr Drąg, Rafael Fontenelle, Richard
+ Petri, Ronan Pigott, Ross Lagerwall, Rubens Figueiredo, satmandu,
+ Sean-StarLabs, Sebastian Jennen, sterlinghughes, Susant Sahani, Thomas
+ Haller, Tobias Hunger, Tom, Tomáš Pospíšek, Tomer Shechner, Tom Hughes,
+ Topi Miettinen, Tudor Roman, Uwe Kleine-König, Valery0xff, Vito Caputo,
+ Vladimir Panteleev, Vladyslav Tronko, Wen Yang, Yegor Vialov, Yigal
+ Korman, YmrDtnJu, Yuri Chornoivan, Yu Watanabe, Zbigniew
+ Jędrzejewski-Szmek, Zhu Li, Дамјан Георгиевски, наб
+
+ – Warsaw, 2020-07-09