Netty 4.1.1.Final 发布了，官方改进记录:
OpenSslEngine writePlaintextData WANT_READ with no data in BIO buffer (#5364)
Ensure the correct wrapped buffer is released in AbstractPooledDerivedByteBuf.deallocate() (#5347)
Netty 4.0.37.Final 发布了，官方改进记录:
OpenSslEngine writePlaintextData WANT_READ with no data in BIO buffer (#5364)
Fix the possible reference leak in Recycler (#5333)
[#5104] Fix possible deadlock in DefaultChannelPipeline (#5110)
PoolChunkList not correctly move PoolChunks when these are moved (#5089)
Allow to create Unsafe ByteBuf implementations that not use a Cleaner to clean the native memory. (#5314)
引用来自“wealpan”的评论
又更新了，好好好~~引用来自“AkataMoKa”的评论
Netty 5 这个版本是不是放弃回退了？详见官方说明： https://github.com/netty/netty/issues/4466