About This ReleasePostgreSQL User's GuidePrevChapter 1. IntroductionNextAbout This Release PostgreSQL is available without cost. This manual describes version 6.4 of PostgreSQL. We will use Postgres to mean the version distributed as PostgreSQL. Check the Administrator's Guide for a list of currently supported machines. In general, Postgres is portable to any Unix/Posix-compatible system with full libc library support. PrevHomeNextA Short History of PostgresUpResources