Percona Server 5.1.73-14.12 发布，此版本现已提供下载，同时也提供在 Percona 软件库。此版本是基于 MySQL 5.1.73，包括所有的 bug 修复，是 5.1 系列的稳定版本。
NOTE: Debian 7.0 (wheezy), Ubuntu
13.10 (saucy) 和 14.04 (trusty) 不提供这个版本，因为新的包跟这些版本有冲突。
Bugs 修复 Percona Server couldn’t be built with Bison 3.0. Bug fixed #1262439, upstream #71250. Ignoring Query Cache Comments feature could cause server crash. Bug fixed #705688. Database administrator password could be seen in plain text when debconf-get-selections was executed. Bug fixed #1018291. If XtraDB variable innodb_dict_size was set, the server could attempt to remove a used index from the in-memory InnoDB data dictionary, resulting in a server crash. Bugs fixed #1250018 and #758788. Ported a fix from MySQL 5.5 for upstream bug #71315 that could cause a server crash f a malformed GROUP_CONCAT function call was followed by another GROUP_CONCAT call. Bug fixed #1266980. MTR tests from binary tarball didn’t work out of the box. Bug fixed #1158036. InnoDB did not handle the cases of asynchronous and synchronous I/O requests completing partially or being interrupted. Bugs fixed #1262500 (upstream #54430). Percona Server version was reported incorrectly in Debian/Ubuntu packages. Bug fixed #1319670. Percona Server source files were referencing Maatkit instead of Percona Toolkit. Bug fixed #1174779. The XtraDB version number in univ.i was incorrect. Bug fixed #1277383.
其他 bug 修复： #1272732, #1167486 和 #1314568.
更多更新内容请看在线文档.
Percona 为 MySQL 数据库服务器进行了改进，在功能和性能上较 MySQL 有着很显著的提升。该版本提升了在高负载情况下的 InnoDB 的性能、为 DBA 提供一些非常有用的性能诊断工具；另外有更多的参数和命令来控制服务器行为。
Percona Server 只包含 MySQL 的服务器版，并没有提供相应对 MySQL 的 Connector 和 GUI 工具进行改进。
Percona Server 使用了一些 google-mysql-tools, Proven Scaling, Open Query 对 MySQL 进行改造。 | 
