Percona Playback 0.4 发布，与 0.3 版本比较的改进包括：
- Produce binary packages for CentOS/RHEL and Debian/Ubuntu.
- Initial libdrizzle based database client (can be used instead of libmysqlclient).
- Fix #1021577, improve accurate mode of tcpdump playback.
- 基于 CentOS/RHEL 5 (with appropriate libraries) 进行构建
- 文档更新
Percona Playback 是一个用来回放 MySQL 数据库负荷的工具。
介绍 PDF：PLMCE2012-Replaying_database_load_with_Percona_Playback.pdf