Well, the previous prediction doesn't seem to have been quite accurate. A number of last-minute bug-fixes, including the solution for a hard-to-reproduce table definition problem (more info) have been added, bringing the Release Candidate total up to 5.

An initdb is not required.

• Release announcement: http://archives.postgresql.org/pgsql-announce/2005-01/msg00003.php
• Mirrors: http://wwwmaster.postgresql.org/download/mirrors-ftp
• Bittorrent: http://bt.postgresql.org