The PostgreSQL Global Development Group has made available the second beta release of PostgreSQL 9.4. This beta contains previews of all of the features which will be available in version 9.4, plus corrections for many of the issues discovered by users who tested 9.4 Beta 1. Please download, test, and report what you find.
Among the changes made since 9.4 Beta 1 are:
Beta 2 includes changes to pg_control and to the system catalogs. As such, users who have been testing Beta 1 will need to upgrade in order to test Beta 2. We suggest using pg_upgrade for this upgrade in order to test that as well.
We depend on our community to help test the next version in order to guarantee that it is high-performance and bug-free. Please download PostgreSQL 9.4 Beta 2 and try it with your workloads and applications as soon as you can, and give feedback to the PostgreSQL developers. Features and APIs in Beta 2 will not change substantially before final release, so it is now safe to start building applications against the new features. More information on how to test and report issues
Get the PostgreSQL 9.4 Beta 2, including binaries and installers for Windows, Linux and Mac from our download page.
Full documentation of the new version is available online, and also installs with PostgreSQL.