Comment 6 for bug 1390138

PostgreSQL 9.2 should be usable as well, though I have no direct experience myself. I have only used PG 9.3 recently. As for PG 9.4beta, I would probably not recommend use of beta software for the database in production use. Certainly I'd be curious to try it out later as a developer and to test future compatibility needs (thus far subsequently new versions of PostgreSQL tend to require some changes in Evergreen to support properly).

Squeeze backports instructions will only be needed as long as squeeze is supported. We can always switch to suggesting the PostgreSQL apt repos, they seem well tended by their community. That said, when next Debian (Jessie?) is released, I expect Squeeze support to go away from Evergreen. Latest and immediate past versions, etc.

If others have input/suggestions, this is good.