November 21, 2014

Percona Server 5.5.12-20.3 Stable Release

Percona is glad to announce the release of Percona Server 5.5.12-20.3 on June 9, 2011 (Downloads are available here and from the Percona Software Repositories).

Based on MySQL 5.5.12, Percona Server 5.5.12-20.3 is now the current stable release in the 5.5 series.

Other Changes

  • The list of authors of the plugins used have been corrected. Bug Fixes:#723050 (Y. Kinoshita)

For more information, please see the following links:

ERRATA: Due to misconceptions, bugs already fixed in the past release (5.5.11-20.2) were included in the Release Notes of this version. They have been removed for consistency, I apologize for any inconvenience.


  1. Rodrigo Gadea says:

    Percona Server 5.5.12 is based on MySQL 5.5.12, so you should expect all the improvements of MySQL 5.5 plus the features and improvements from Percona Server.

    A quick comparison between the two servers can be found in

    An introduction to Percona Server can be found in

    A more detailed explanation of the main features of Percona Server can be found in

  2. shenglin says:

    Since Mysql 5.5 has a lot of performance improvement, what the advantage of Percona Server 5.5.12? I can’t find any latest documents or data to say that.

  3. Rodrigo Gadea says:

    Currently Microsoft Windows is not a supported platform by Percona Server. This will be addressed in a future but not in the short-term.

  4. Bret Ferrier says:

    Looking everywhere I see mention in the instructions of how to install using Windows .msi but I can not find a Windows .msi to download. Am I just looking in the wrong places?

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