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)