Based on MySQL 5.5.22, including all the bug fixes in it, Percona Server 5.5.22-25.2 is now the current stable release in the 5.5 series. All of Percona‘s software is open-source and free, all the details of the release can be found in the 5.5.22-25.2 milestone at Launchpad.
- While running the test case found that MEMORY engine may return rows in non-deterministic order for equal keys. Bug fixed #892951 (Laurynas Biveinis).
Release notes for Percona Server 5.5.22-25.2 are available in our online documentation.