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Percona Server 5.5.42-37.1 发布，此版本是基于 MySQL 5.5.42 版本，包括其所有 bug 修复，是 5.5. 系列最新的稳定版本。
此版本现已提供在这里和 Percona Software Repositories，详情请看 5.5.42-37.1 milestone。
Bugs 修复
RPMpre-install script assumed that thePIDfile was always located in thedatadir. If it was not, during installation, wrong assumption could be made if the server was running or not. Bug fixed #1201896.SHOW GRANTSdisplayed only the privileges granted explicitly to the named account. Other effectively available privileges were not displayed. Fixed by implementing Extended SHOW GRANTS feature. Bug fixed #1354988 (upstream #53645).- InnoDB lock monitor output was printed even if it was not requested. Bug fixed #1418996.
- The stored procedure key was made consistent with other keys in the Slow Query Log by replacing space with an underscore. Bug fixed #1419230.
其他 bug 修复：#1408232, #1415843 (upstream #75642), bug fixed #1407941, and bug fixed#1424568 (upstream #75868).
同时发布的还有 Percona Server 5.6.23-72.1
发行说明请看在线文档。
Percona 为 mysql”>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”>google-mysql-tools, Proven Scaling, Open Query 对 MySQL 进行改造。
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