Netty 4.1.0.CR5 发布，该版本最重要的改进内容包括：
Map HTTP/2 Streams to Channels (#4503)
IllegalReferenceCountException from HttpObjectDecoder when switching a protocol (#4504)
IOOBE in DefaultDnsRecordDecoder#decodeName (#5015)
Prevent nepotism with generational GCs (#5016)
Fix setBytes when source is read-only ByteBuffer and target is pooled #5011)
Speed up the slow path of FastThreadLocal (#5012)
Upgrade netty-tcnative to 1.1.33.Fork15 (#5025)
Read if needed on NEED_UNWRAP (#5039)
Not attempt to read from fd when channel is closed during read loop (#5048)
注意事项：因为 http2 和 dns 编码器目前还处于体验阶段，因此接下来的版本在 API 上可能会有变化。
软件详情：https://github.com/netty/netty/issues?q=milestone%3A4.1.0.CR5+is%3Aclosed
下载地址：http://netty.io/downloads.html
来自:开源中国社区
