Netty 4.0.39.Final 和 4.1.3.Final 发布了。本次发布，修改了bug，改进了性能，以及增加了一些功能。
4.0.39 和4.1.3.Final 主要修改内容如下:
Fix JDK9 direct ByteBuffer cleaner invocation (#5538)
Non-sticky thread groups in DefaultThreadFactory (#5533)
Enforce Recycler limit when recycling from different threads (#5528)
Avoid missed signals on a default promise (#5523)
Ensure ChannelHandler.handlerAdded(...) callback is executed directly when added from ChannelFutureListener added to the registration future. (#5515)
Not operate on serial execution assumption when using EventExecutor in the DefaultChannelPipeline.(#5506)
Make AbstractChannel.outboundBuffer volatile (#5509)
Fix improper synchronization in DefaultPromise (#5494)
4.1.3.Final 的重要更新：
DnsNameResolver search domains support (#5496)
DefaultHttp2RemoteFlowController reentry infinite loop (#5525)
详情请看 https://github.com/netty/netty/milestone/146?closed=1 和 https://github.com/netty/netty/milestone/145?closed=1
所有在 4.0.39.Final 的修改，都包含在了 4.1.3.Fina。而 4.1.3.Final 里程碑的修改不会影响4.0.39.Final。
更多信息：http://netty.io/news/2016/07/15/4-0-39-Final-4-1-3-Final.html
来自:开源中国社区
