Releases in August 2006 and before

github
cms-sw/cmssw on GitHub CMSSW_0_8_4
github
ntpsec/ntpsec on GitHub NTP_4_2_3P38
freedesktop-gitlab
mesa/mesa on Freedesktop GitLab texmem_0_2_20060912
sourceforge
upp on SourceForge upp-development/608-dev2/upp-src-608-dev2.zip upp-development/608-dev2/upp-mingw-608-dev2.exe upp-development/608-dev1/upp_608-dev-1_i386.deb
github
ntpsec/ntpsec on GitHub NTP_4_2_3P37
github
aria2/aria2 on GitHub release-0.7.3
github
cms-sw/cmssw on GitHub CMSSW_0_9_2
github
PyMySQL/mysqlclient on GitHub MySQLdb-1.2.2b1
github
torproject/tor on GitHub tor-0.1.2.1-alpha
github
reactos/reactos on GitHub backups/ros-branch-0_3_0@23785 ReactOS-0.3.0
github
secdev/scapy on GitHub v1.0.4.74 v1.0.4.73 v1.0.4.72 v1.0.4.71 v1.0.4.70 v1.0.4.69 v1.0.4.68 v1.0.4.67 v1.0.4.66 v1.0.4.65
github
ntpsec/ntpsec on GitHub NTP_4_2_3P36
github
ntpsec/ntpsec on GitHub NTP_4_2_2P4_RC2 NTP_4_2_3P35
github
FarGroup/FarManager on GitHub builds/1.71.2124
github
GNOME/gimp on GitHub GIMP_2_2_13
Maybe you can find something interesting in this list