Releases in August 2003 and before

github
FarGroup/FarManager on GitHub builds/1.70.1693
github
reactos/reactos on GitHub ReactOS-0.1.3
github
bestpractical/rt on GitHub rt-3.0.5pre6
github
lavv17/lftp on GitHub lftp-2-6-7
github
bestpractical/rt on GitHub rt-3.0.5pre5
github
lilypond/lilypond on GitHub release/1.9.2
github
GNOME/gimp on GitHub GIMP_1_3_19
gnome-gitlab
GNOME/gimp on Gnome GitLab GIMP_1_3_19
github
GNOME/rhythmbox on GitHub RHYTHMBOX-0_5_2
github
FarGroup/FarManager on GitHub builds/1.70.1692
github
lilypond/lilypond on GitHub release/1.9.1
github
GNOME/gtk on GitHub GTK_2_2_3
github
thkukuk/ypbind-mt on GitHub ypbind-mt-1_14
github
ocaml/ocaml on GitHub 3.07-beta2
github
openssh/openssh-portable on GitHub AFTER_KRB5_GSSAPI_MERGE BEFORE_KRB5_GSSAPI_MERGE
github
lilypond/lilypond on GitHub release/1.9.0
gnome-gitlab
GNOME/gtksourceview on Gnome GitLab GTKSOURCEVIEW_0_6_0
gnome-gitlab
GNOME/gnome-desktop on Gnome GitLab GNOME_DESKTOP_2_3_7
github
bestpractical/rt on GitHub rt-3.0.5pre4
github
doxygen/doxygen on GitHub Release_1_3_3_20030824
sourceforge
sevenzip on SourceForge OldFiles/7za30804b.zip OldFiles/7za_dll_30804b.zip OldFiles/7z30804b.tar.bz2 OldFiles/7z30804b.exe
sourceforge
winscp on SourceForge WinSCP/3.2.1/winscp321source.zip
sourceforge
winscp/WinSCP on SourceForge 3.2.1/winscp321source.zip
Maybe you can find something interesting in this list