systemd 235 released

Version 235 of the systemd service manager is out; it includes a long listof new features. See this blogpost for a description of the dynamic user feature in particular."One major benefit of dynamic user IDs is that running aprivilege-separated service leaves no artifacts in the system. A systemuser is allocated and made use of, but it is discarded automatically in asafe and secure way after use, in a fashion that is safe for laterrecycling. Thus, quickly invoking a short-lived service for processing somejob can be protected properly through a user ID without having topre-allocate it and without this draining the available UID pool any longerthan necessary."