Releases in September 2004 and before

sourceforge
gparted/gparted on SourceForge gparted-0.0.5/gparted-0.0.5.tar.bz2
github
i2p/i2p.i2p on GitHub i2p_0_4_1
sourceforge
dosbox/dosbox on SourceForge 0.62/dosbox-0.62.tar.gz 0.62/DOSBox0.62-win32-installer.exe
github
doxygen/doxygen on GitHub Release_1_3_8_20040928
github
lilypond/lilypond on GitHub release/2.3.19
sourceforge
irrlicht on SourceForge Irrlicht Sources only release/irrlicht-Sources-0.7.1.zip
github
GNOME/gimp on GitHub GIMP_2_0_5
github
secdev/scapy on GitHub v0.9.17.18 v0.9.17.17
github
WayneD/rsync on GitHub v2.6.3pre2
github
secdev/scapy on GitHub v0.9.17.16
github
lavv17/lftp on GitHub lftp-3-0-9
github
lilypond/lilypond on GitHub release/2.3.18
github
GNOME/gimp on GitHub GIMP_2_1_5
sourceforge
keepass/KeePass 1.x on SourceForge 0.97b/KeePass-0.97b-Src.zip 0.97b/KeePass-0.97b-Setup.exe 0.97b/KeePass-0.97b.zip
github
GNOME/gtk on GitHub GTK_2_5_3
github
GNOME/gtk on GitHub GTK_2_4_10
github
lilypond/lilypond on GitHub release/2.3.17
github
secdev/scapy on GitHub v0.9.17.15
freedesktop-gitlab
xorg/xserver on Freedesktop GitLab YGWIN-6_8_1-MERGE
Maybe you can find something interesting in this list