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Netty 3.4.2.Final released!

The Netty project team is proud to announce the final release of Netty 3.4.2. This is a bugfix-only release of the 3.4.x series.

The JAR file can be found on Maven central repository. You can also get the full tarball from the download page.

This release includes an important change that allows to specify a maximum frame size for the WebSocket FrameDecoders. This helps to prevent DOS attacks and should be used in all cases as it has security impacts. See #283 for more information. Everyone who uses Netty WebSockets implementation should upgrade as soon as possible and change his code base to enforce a limit.

An other important improvement is the memory-usage optimization of the ReplayingDecoder and FrameDecoder. This two Decoders are sub-classed by many other Decoders so chances are good that you can benefit from the changes. The used memory of each instance should be down to a minimum now. For more details checkout out #280.

Beside this we had a handful of other bugfixes which are included. For the detailed list of the changes, please refer to the issue tracker page.