Percona is glad to announce the release of Percona Server 5.1.73-14.11 on December 20th, 2013 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.1.73, including all the bug fixes in it, Percona Server 5.1.73-14.11 is now the current stable release in the 5.1 series. All of Percona‘s software is open-source and free, all the details of the release can be found in the 5.1.73-14.11 milestone at Launchpad.
INSTALL PLUGINstatement would crash server if User Statistics were enabled. Bug fixed #1011047.
UDFsubdirectory if the Automake version was 1.13. Bug fixed #1244110.
Other bug fixes: #1082333.