Based on MySQL 5.5.36, including all the bug fixes in it, Percona Server 5.5.36-34.1 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 5.5.36-34.2 milestone at Launchpad.
Percona Server could fail to start after upgrade if the lc-messages-dir option was set in the my.cnf configuration file. Bug fixed #1294067.
Dependency on mysql-common package, introduced in Percona Server 5.5.36-34.0 could lead to wrongly chosen packages for upgrade, spurious removes and installs with some combination of packages installed which use the mysql libraries. Bug fixed #1294211.
These three bugs were fixed by removing the dependency on mysql-common package.
Percona Server installer will create the symlinks from libmysqlclient to libperconaserverclient during the installation on CentOS. This was implemented in order to provide the backwards compatibility after the libmysqlclient library has been renamed to libperconaserverclient .