Bunny 2.2.2 is released to rubygems.org.
2.2.2 is a maintenance release.
Changes between Bunny 2.2.1 and 2.2.2
amq-protocol version is now
2.0.1 which includes
Full Change Log
Full change log can be found on GitHub.
About the Author
Michael maintains Bunny and several other RabbitMQ client libraries.