The PostgreSQL Global Development Group announces the availability of our most eagerly awaited release. PostgreSQL 9.0 includes built-in, binary replication, and over a dozen other major features which will appeal to everyone from web developers to database hackers. 9.0 includes more major features than any release before it, including: hot standby, streaming replication, in-place upgrades, easy mass permissions management, anonymous blocks and named parameter calls for stored procedures, new windowing functions and ordered aggregates.