Based on MySQL 5.5.36, including all the bug fixes in it, Percona Server 5.5.36-34.0 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 5.5.36-34.0 milestone at Launchpad.
Debian and Ubuntu packaging has been reworked to meet the packaging standards.
Ability to change database for mysqlbinlog has been ported from Percona Server 5.1.
Percona Server has implemented Slow Query Log Rotation and Expiration feature to provide users with better control of slow query log disk space usage.
In order to comply with Linux distribution packaging standards Percona‘s version of libmysqlclient has been renamed to libperconaserver. The old name was conflicting with the upstream libmysqlclient. Except for packaging, libmysqlclient and libperconaserverclient of the same version do not have any differences. Users wishing to continue using libmysqlclient will have to install the corresponding package of their distribution, such as mysql-lib for CentOS and libmysqlclient18 for Ubuntu/Debian. Users wishing to build software against libperconaserverclient should install libperconaserverclient-dev package. An old version of Percona-built libmysqlclient will be available for download.
The XtraDB version number in univ.i was incorrect. Bug fixed #1277383.
Fix for bug #1227581, a buffer pool mutex split regression, was not complete, thus a combination of write workload and tablespace drop could crash the server if InnoDB compression was used. Bug fixed #1269352.
Binary RPM packages couldn’t be built from source tarballs on Fedora 19. Bug fixed #1229598.
Percona Server that was compiled from source package had different server version string from that of binary packages. Bug fixed #1244178.
Percona Server source tree has been reorganized to match the MySQL source tree layout closer. Bug fixed #1014477.
On Ubuntu Precise multiple architecture versions of libmysqlclient18 couldn’t be installed side by side. Bug fixed #1052636.
Database administrator password could be seen in plain text if when debconf-get-selections was executed. Bug fixed #1018291.
Other bugs fixed: #1005787.