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Percona XtraDB Cluster 5.5.30-23.7.4 for MySQL 发布了，包含如下新特：
Percona XtraDB Cluster has implemented initial implementation of weighted quorum. Weight for node can be assigned via pc.weight option in the wsrep_provider_options variable. Accepted values are in the range [0, 255] (inclusive). Quorum is computed using weighted sum over group members.Percona XtraDB Cluster will now be shipped with the libjemalloc library. Benchmark showing the impact of memory allocators on MySQL performance can be found in this blogpost.This release of Percona XtraDB Cluster has fixed number of foreign key and packaging bugs.此外还修复了大量的bug，详细列表请看这里。
Percona XtraDB Cluster是针对MySQL用户的高可用性和扩展性解决方案，基于Percona Server 。其包括了Write Set REPlication补丁，使用Galera 2.0库，这是一个针对事务性应用程序的同步多主机复制插件。
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