On Wed, 28 Jan 2015 12:25:48 -0800 Andrej Podzimek
Well, version changes that require a non-trivial manual intervention are certainly not "routine". There have been many bugfix version updates of PostgreSQL that required no action at all. Those would definitely qualify as "routine". PostgreSQL minor version changes, on the other hand, may be tricky (often requiring a dump and restore) and should be, IMHO, always loudly announced.
They ARE routine, though. When dealing with databases anything more than a bugfix upgrade is suspect and you should be aware of such. Further, if an upgrade announcement wasn't necessary any time in the past (the only remotely related announcement was regarding a patched security vulnerability in Postgres in 2008), I don't see why one is necessary now. A post-install message is the right place for this. Regards, ~Celti