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PostgreSQL 9.1 Beta 3 Released

Posted on July 11, 2011

The third beta release of PostgreSQL 9.1 is now available. This beta fixes several issues reported with 9.1 beta 2. All users should help the project by downloading and testing PostgreSQL 9.1 beta 3 as soon as they can.

Many users have already helped us by testing Beta 2 and reporting issues they encountered with it. This included several issues with the new, innovative Serializable Snapshot Isolation feature.

Among the other issues fixed in the beta3 release are:

  • PL/Python build issues
  • Poor grammar for NOT VALID CONSTRAINT declaration
  • Problems with FOREIGN TABLE documentation
  • Broken Btree_GiST operators
  • Unsafe weakening of ALTER TABLE locks

Our thanks to users who reported the problems which led to these fixes.

If you tested 9.1 features earlier and reported bugs with Beta 2 or earlier alphas, please download Beta 3 and test that these issues are resolved. Users who are able to help with testing version 9.1 should please read the Beta Testing HOWTO.

Since this is a beta version, it is not considered ready for production use. However, the list of features and the APIs is now stable, so application developers can begin developing applications against 9.1. This beta may be followed by more beta releases and one or more release candidates before final release.

This beta is being released in source form and in one-click installers for Windows, Mac OSX and Linux. Native Linux packages and binaries for other operating systems may follow in the next couple weeks.

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