ReleaseHistory

For releases starting with 23.1, see the GitHub releases page.

Release	Date	javadoc	API changes
23.0	2017-08-04	javadoc (android)	API changes (android)
22.0	2017-05-22	javadoc (android)	API changes (android)
21.0	2017-01-12	javadoc	API changes
20.0	2016-10-28	javadoc	API changes
19.0	2015-12-09	javadoc	API changes
18.0	2014-08-25	javadoc	API changes
17.0	2014-04-22	javadoc	API changes
16.0	2014-01-17, 2014-02-03	javadoc	API changes
15.0	2013-09-06	javadoc	API changes
14.0	2013-02-25, 2013-03-15	javadoc	API changes
13.0	2012-08-03, 2012-08-28	javadoc	API changes
12.0	2012-04-30, 2012-07-10	javadoc	API changes
11.0	2011-12-18, 2012-01-09, 2012-02-22	javadoc	API changes
10.0	2011-09-28, 2011-10-10	javadoc	API changes
9.0	2011-04-07	javadoc	API changes
8.0	2011-01-27	javadoc	API changes
7.0	2010-09-22	javadoc	API changes
r06	2010-07-07	javadoc	API changes
r05	2010-05-28	javadoc	API changes
r04	2010-04-27	javadoc	API changes
r03	2010-04-09	javadoc
r02	2010-01-04	javadoc
r01%	2009-09-15	javadoc

% did not include Google Collections, which existed separately at that time

Note:

• Release 21.0 requires JDK 1.8 or newer.
• Releases 12.0 through 20.0 require JDK 1.6 or newer.
• Releases 1.0 through 11.0 require JDK 1.5 or newer.