Arch updates Postgresql & PostGIS
Postgresql 9.2.1 and PostGIS 2.0.1 just hit Arch’s repositories. Going from Postgres 9.1 to 9.2 is a major upgrade and will require your 9.1 databases to be migrated. For steps on how to upgrade your data see this post in the Arch Wiki. If you want to postpone updating your databases add postgresql and postgresql-libs to your IgnorePkg line in your /etc/pacman.conf file.
Boring Nerdy Stuff 