Releases in May 2011 and before

gems
newrelic_rpm on Ruby Gems 3.1.0.djlogging2
github
resteasy/Resteasy on GitHub RESTEASY_JAXRS_2_2_0_GA RESTEASY_JAXRS_2_2_0_GA@1367
github
root-project/root on GitHub v5-30-00-rc1
github
tine20/tine20 on GitHub 2011-05-rc1-1
github
resteasy/Resteasy on GitHub RESTEASY_JAXRS_2_2_0_GA@1364
github
metabrainz/picard on GitHub release-0.15beta2
gitlab
wireshark/wireshark on GitLab wireshark-1.2.17
github
wireshark/wireshark on GitHub wireshark-1.2.17
sourceforge
zsh on SourceForge zsh-doc-dev/4.3.12/zsh-4.3.12-doc.tar.bz2 zsh-doc-dev/4.3.12/zsh-4.3.12-doc.tar.gz zsh-dev/4.3.12/zsh-4.3.12.tar.bz2 zsh-dev/4.3.12/zsh-4.3.12.tar.gz
gitlab
wireshark/wireshark on GitLab wireshark-1.4.7
github
wireshark/wireshark on GitHub wireshark-1.4.7
github
ntpsec/ntpsec on GitHub NTP_4_2_7P176
github
FarGroup/FarManager on GitHub builds/3.0.2060
github
todotxt/todo.txt-cli on GitHub archive/cleaninput-escaping
github
bminor/binutils-gdb on GitHub sid-snapshot-20110601
github
Activiti/Activiti on GitHub activiti-5.6
github
lilypond/lilypond on GitHub release/2.13.63-1
github
squid-cache/squid on GitHub SQUID_3_1_12_2
github
apache/camel on GitHub camel-2.7.2
Maybe you can find something interesting in this list