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21/02/2014
The PostgreSQL developers have released the important updates for their DBMS

The PostgreSQL Global Development Group has released an important update to all supported versions of the PostgreSQL database system, which includes minor versions 9.3.3, 9.2.7, 9.1.12, 9.0.16, and 8.4.20. This update contains fixes for multiple security issues, as well as several fixes for replication and data integrity issues. All users are urged to update their installations at the earliest opportunity, especially those using binary replication or running a high-security application.

This update also fixes some issues which affect binary replication and row locking, and can cause recoverable data corruption in some cases. There are several fixes to index page locking issue during replication which can cause indexes on the replica to be corrupted. There is a fix to a transaction freezing bug in version 9.3 which could cause databases which cycled through transaction ID wraparound several times to have old row versions reappear.

As with other minor releases, users are not required to dump and reload their database or use pg_upgrade in order to apply this update release; you may simply shut down PostgreSQL and update its binaries. Users who have skipped multiple update releases may need to perform additional post-update steps; see the Release Notes for details.

News source: postgresql.org

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