The Apache BookKeeper team is pleased to announce Apache BookKeeper 4.2.3.
 
This is the sixth release of the Apache BookKeeper subproject of ZooKeeper.

The BookKeeper project is made up of a distributed logging service called 
BookKeeper and a distributed publish/subscribe system build on top of 
BookKeeper called Hedwig.

This is a bugfix release for 4.2.2.

Notable fixes and improvements include new utilities to give administrators 
better visibility of cluster state (BOOKKEEPER-746), improvements to allow for 
smoother rolling upgrades (BOOKKEEPER-745), fixes to ledger polling to ensure 
metadata updates aren't missed (BOOKKEEPER-710 & BOOKKEEPER-747) and shading of 
protobuf libraries to avoid conflicts when included with other version 
(BOOKKEEPER-708).

For BookKeeper release details and downloads, visit:
 
http://zookeeper.apache.org/bookkeeper/releases.html
 
BookKeeper 4.2.3 Release Notes are at:
http://zookeeper.apache.org/bookkeeper/docs/r4.2.3/releaseNotes.html
 
We would like to thank the contributors that made the release possible.
 
Regards,
 
The BookKeeper Team

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