Percona XtraDB Cluster 5.7.17-27.20 发布了，二进制文件可在 下载区 或 软件仓库 中下载。（注意：你也可以从 Docker Hub 仓库中的镜像运行 Docker 容器）
Percona XtraDB Cluster 5.7.17-27.20 基于以下这些项目：
Percona Server 5.7.17-11
Galera Replication library 3.20
wsrep API version 27
该版本除了上游更改和相关包的修复外，对主要组件没有新功能或错误修复：
Fixed startup of garbd on Ubuntu 16.04.2 LTS (Xenial Xerus).
Added the garbd debug package to the repository.
Fixed grabd script to return non-zero if it fails to start.
Fixed service script for garbd on Ubuntu 16.04.2 LTS (Xenial Xerus) and Ubuntu 16.10 (Yakkety Yak).
Limited the use of rm and chown by mysqld_safe to avoid exploits of the CVE-2016-5617 vulnerability. For more information, Credit to Dawid Golunski (https://legalhackers.com).
Added version number to the dependency requirements of the full RPM package.
Fixed systemctl to mark mysql process as inactive after it fails to start and not attempt to start it again. For more information
Added the which package to PXC dependencies on CentOS 7. For more information
Fixed mysqld_safe to support options with a forward slash (/). For more information
Fixed systemctl to show correct status for mysql on CentOS 7. For more information
软件详情：https://www.percona.com/blog/2017/03/17/percona-xtradb-cluster-5-7-17-27-20-now-available/
来自:开源中国社区
