Percona Server 5.6.19-67.0 发布，此版本现已提供下载。此版本是基于 MySQL 5.6.19，包括了其中所有的 bug 修复，是当前 Percona Server 的稳定版本。
新特性:
Perconahas merged a contributed patch byKostja Osipovimplementing theMultiple user level locks per connectionfeature. This feature fixes the upstream bugs:#1118and#67806.
TokuDBstorage engine support is now considered general availability (GA) quality. The TokuDB storage engine from Tokutek improves scalability and the operational efficiency of MySQL with faster performance and increased compression. It is available as a separate package and can be installed along with thePercona Serverby followingthe instructionsin the release documentation.
Percona Servernow supports the MTR--valgrindoption for a server that is either statically or dynamically linked withjemalloc.
Bugs 修复:
Thelibperconaserverclient18.1package was missing the library files. Bug fixed#1329911.
Percona Serverintroduced a regression in5.6.17-66.0when support forTokuDBstorage engine was initially introduced. This regression caused spurious “wrong table structure” errors forPERFORMANCE_SCHEMAtables. Bug fixed#1329772.
Race condition in group commit code could lead to a race condition inPFSinstrumentation code resulting in a server crash. Bug fixed#1309026(upstream#72681).
其他 bug 修复：#1326348和#1167486。
注意：没有Percona Server5.6.18 版本，因为没有MySQLCommunity Server 5.6.18 版本。
更多内容请看在线文档。
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。
Percona Server 的详细介绍：请点这里
Percona Server 的下载地址：请点这里
