Release Notes: This release introduces a new API with an integrated I/O layer and protocol layer. New features include traffic control, StartTLS, out-of-the-box protocol codecs, and Spring framework integration.
Release Notes: A bug in which no exception is forwarded while writing data was fixed. Thread pool doesn't block forever while shutting down now. CancelledKeyException is not thrown anymore.
Release Notes: StartTLS support has been added. Connection idleness notification has been improved. Support for connectionless transport types was improved. The thread pool can prioritize session handling. The logging framework has been changed to SLF4J. This release also fixes several subtle bugs.
Release Notes: Several bugs have been fixed, including one in which the thread pool stops processing events. ByteBuffer management was made more user-friendly.
Release Notes: This release fixes several critical and trivial bugs.