The Netty project team is proud to announce the final release of Netty 3.4.4.Final. This release fix a regression in ChunkedWriteHandler which was introduced in 3.4.3.Final.
The JAR file can be found on Maven central repository. You can also get the full tarball from the download page.
If you don't use ChunkedWriteHandler its safe to stay on 3.4.3.Final.