1.9.0 is released.
This is a maintenance release that drastically improves throughput of the channel id allocator, as well as correcting some bugs in it. If you use Bunny or amqp gem, upgrading amq-protocol is highly recommended.
Changes between 1.8.0 and 1.9.0
Performance Improvements in AMQ::BitSet
AMQ::BitSet#next_clear_bit is now drastically more efficient
(down from 6 minutes for 10,000 iterations to 4 seconds for 65,536 iterations).
Contributed by Doug Rohrer, Dave Anderson, and Jason Voegele from Neo.
Full change log can be found on GitHub.