I don't know how to find out what version it is
It started out as 5.1 and is completely updated, does that make it 5.2?
Don't know if it's relevant or not either way but: It no longer shuts down by itself, it gets as far as 'unmounting filesystems' and hangs. This is after syslog-ng has been stopped so there's nothing in the logs about it, and I can't log in on another terminal to find out what's running.
The only workaround I have is Alt-SysReq (S,U,E) which presumably kills the hanging process and the shutdown seems to complete cleanly.
Anyone familiar with the shutdown process, or know how I might capture some logs?