ReleaseHistory

Release	Date	javadoc	API changes
r01*%	2009-09-15	javadoc
r02*	2010-01-04	javadoc
r03	2010-04-09	javadoc
r04	2010-04-27	javadoc	API changes
r05	2010-05-28	javadoc	API changes
r06	2010-07-07	javadoc	API changes
Release07	2010-09-22	javadoc	API changes
Release08	2011-01-27	javadoc	API changes
Release09	2011-04-07	javadoc	API changes
Release10	2011-09-28, 2011-10-10	javadoc	API changes
Release11	2011-12-18, 2012-01-09, 2012-02-22	javadoc	API changes
Release12	2012-04-30, 2012-07-10	javadoc	API changes
Release13	2012-08-03, 2012-08-28	javadoc	API changes
Release14	2013-02-25, 2013-03-15	javadoc	API changes
Release15	2013-09-06	javadoc	API changes
Release16	2014-01-17, 2014-02-03	javadoc	API changes
Release17	2014-04-22	javadoc	API changes
Release18	2014-08-25	javadoc	API changes

* source release only

% did not include Google Collections

Note: Releases 1 through 11 required JDK 1.5. Releases 12 and on require JDK 1.6.