Release Notes JGroups 2.6.13
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Author: Bela Ban
Version: $Id: ReleaseNotes-2.6.13.txt,v 1.1.2.1 2009/09/30 14:34:15 belaban Exp $



JGroups 2.6.13 is still API-backwards compatible with previous versions (down to 2.2.7).
It is also binary backwards compatible with all previous patch versions 2.6.X.

The major work done in 2.6.13 was performance related: JGRP-1033 and JGRP-1034 back ported UNICAST and NAKACK from
CVS head to 2.6.x. JGRP-1043 fixed a performance bottleneck in 2.6.x.

A more detailed discussion is at http://belaban.blogspot.com/2009/09/jgroups-2613cr2-released.html.


Below is a summary (with links to the detailed description) of the major new features between 2.6.12 and 2.6.13.

Release Notes - JGroups - Version 2.6.13

** Bug
    * [JGRP-1060] - NAKACK has inconsistent internal state after concurrent node startup
    * [JGRP-1062] - TimeScheduler: if a periodic task throws an exception, task is not run again
    * [JGRP-1064] - Serialization untidiness in AuthToken


** Task
    * [JGRP-1033] - UNICAST: backport from head
    * [JGRP-1034] - NAKACK: backport from head
    * [JGRP-1043] - UNICAST: high contention




Manual
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The manual is online at http://www.jgroups.org/manual/html/index.html

The complete list of features and bug fixes can be found at http://jira.jboss.com/jira/browse/JGRP.


Bela Ban, Kreuzlingen, Switzerland
Vladimir Blagojevic, Toronto, Canada
Richard Achmatowicz, Montreal, Canada

Sept 2009