我很高兴的宣布 Netty 4.0 的首个 RC 版本终于来了，这意味该软件已经具备了最终稳定的条件。
你可通过下载页面或者 Maven 中心获取该版本。
值得关注的改变有：
We change our EventExecutor to return our own Future implementation (which extends java.util.concurrent.Future now). This allows you to add listeners to the returned futures and so get notified once a task was completed. Please refer to the API documentation for more information. (#1174)
Add the WebSocketClientProtocolHandler, which makes it even more easy to write WebSocket-Only clients. (#1179)
Possible deadlock in Bootstrap and ServerBootstrap durring bind/connect was fixed. (#1175)
Fix bug which could produce a 100 % CPU spin if many NIO bases channels are closed at the same time (#1171)
Added alternative constructor to *Adapter classes to make them usable from languages that have no meaning for Generics. (#1177)
Automatically rebuild Selector if hit by e-poll bug. (#1192)
Do not use separate thread for scheduling deferred tasks if possible. (#817)
Other bugfixes
项目主页：https://github.com/netty/netty/issues?milestone=47&state=closed
下载地址：http://netty.io/downloads.html
来自:开源中国社区
