4 http://trac.openlayers.org/wiki/Release/2.8/Notes
9 http://trac.openlayers.org/wiki/Release/2.7/Notes
14 http://trac.openlayers.org/wiki/Release/2.6/Notes
19 http://trac.openlayers.org/wiki/Release/2.5/Notes
24 http://trac.openlayers.org/wiki/Release/2.4/Notes
29 http://trac.openlayers.org/wiki/Release/2.3/Notes
34 http://trac.openlayers.org/wiki/Release/2.2/Notes
39 http://trac.openlayers.org/wiki/Release/2.1/Notes
44 http://trac.openlayers.org/wiki/Release/2.0/Notes