Release Notes: In this release, vacuuming no longer locks tables, there is no longer a problem with installations that exceed four billion transactions, OIDs are now optional, a new MD5 encryption option allows more secure storage and transfer of passwords, and program and library messages can now be displayed in several languages.
Release Notes: There are several major new features in this release, including synchronous replication and other replication features, per-column collations, unlogged tables, extensions, K-Nearest-Neighbor indexing, Serializable Snapshot Isolation, Writeable Common Table Expressions, SE-Postgres (Military-grade security), the PostgreSQL Extension Network, and SQL/MED (Management of External Data), with foreign data wrappers for Oracle, MySQL, CouchDB, Redis, CSV, Twitter, and more. There have also been improvements in performance and database administration, and several SQL and PL/PgSQL features.
Release Notes: This is a bugfix release that fixes issues with pg_upgrade, non-hot-standby recovery, deadlock issues with catalog cache initialization, updates to time zone data files, and several other minor bugs.
Release Notes: Built-in replication based on log shipping. Easier database object permissions management. pg_upgrade to support in-place upgrades. Multiple performance enhancements for specific types of queries. Full support for 64-bit Windows.
Release Notes: This is a security release, plus 48 minor bugfixes.
Release Notes: This is a bugfix release.