Releases on May 23rd, 2012 and before

github
cgeo/cgeo on GitHub market_20120508
github
mono/monodevelop on GitHub monodevelop-3.0.2
github
glennrp/libpng on GitHub v1.6.0beta22
github
sqlcipher/sqlcipher on GitHub v2.0.5_RC2 v2.0.5_RC1
github
FarGroup/FarManager on GitHub builds/3.0.2699
github
389ds/389-ds-base on GitHub 389-ds-base-1.2.10.2-15
github
389ds/389-ds-base on GitHub 389-ds-base-1.2.10.9
github
FarGroup/FarManager on GitHub builds/3.0.2698
github
horde/horde on GitHub horde_memcache-1.1.1
github
heimdal/heimdal on GitHub elric_sig_20120522230313
github
horde/horde on GitHub horde_mime-1.6.1
github
glennrp/libpng on GitHub v1.5.11rc01
github
lilypond/lilypond on GitHub release/2.15.39-1
github
eclipse/jetty.project on GitHub jetty-8.1.4.v20120522
github
vmware/open-vm-tools on GitHub 2012.05.21-724730
github
eclipse/jetty.project on GitHub jetty-7.6.4.v20120522
github
horde/horde on GitHub horde_memcache-1.1.0
github
eclipse-vertx/vert.x on GitHub _old/v1.0.1.final
github
OpenNMS/opennms on GitHub opennms-1.10.3-1
Maybe you can find something interesting in this list