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:
Percona has merged a contributed patch by Kostja Osipov implementing the Multiple user level locks per connection feature. This feature fixes the upstream bugs: #1118 and #67806. TokuDB storage 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 the Percona Server by following the instructions in the release documentation. Percona Server now supports the MTR --valgrind option for a server that is either statically or dynamically linked with jemalloc.
Bugs 修复:
The libperconaserverclient18.1 package was missing the library files. Bug fixed #1329911. Percona Server introduced a regression in 5.6.17-66.0 when support for TokuDB storage engine was initially introduced. This regression caused spurious “wrong table structure” errors for PERFORMANCE_SCHEMA tables. Bug fixed #1329772. Race condition in group commit code could lead to a race condition in PFS instrumentation code resulting in a server crash. Bug fixed #1309026 (upstream #72681).
其他 bug 修复：#1326348 和 #1167486。
注意：没有 Percona Server 5.6.18 版本，因为没有 MySQL Community 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。
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