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
libjemalloclibrary. 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.