Apache BookKeeper 4.5.0 发布了。Apache BookKeeper 是 ZooKeeper 的子项目，由一个分布式日志服务(BookKeeper)和一个分布式发布和订阅系统(Hedwig)组成。
此次更新覆盖领域：
Dependencies Upgrade
Security
Public API
Performance
Operations
依赖更新：
Moved the developement from Java 7 to Java 8.
Upgrade Protobuf to 2.6.
Upgrade ZooKeeper from 3.4 to 3.5.
Upgrade Netty to 4.1.
Upgrade Guava to 20.0.
Upgrade SLF4J to 1.7.25.
Upgrade Codahale to 3.1.0.
下载地址：http://www.apache.org/dyn/closer.cgi/bookkeeper
来自:开源中国社区
