Releases in December 2005 and before

github
lilypond/lilypond on GitHub release/2.7.26
github
lavv17/lftp on GitHub lftp-3-4-0
sourceforge
gnuwin32 on SourceForge tiff/3.8.0/tiff-3.8.0.exe tiff/3.8.0/tiff-3.8.0-src.exe tiff/3.8.0/tiff-3.8.0-lib.zip tiff/3.8.0/tiff-3.8.0-doc.zip tiff/3.8.0/tiff-3.8.0-dep.zip tiff/3.8.0/tiff-3.8.0-bin.zip
github
GNOME/gimp on GitHub GIMP_2_3_6
sourceforge
gameextractor on SourceForge OldFiles/source_15506.zip OldFiles/extract_15506.exe OldFiles/extract_15506.zip
github
doxygen/doxygen on GitHub Release_1_4_5_20051227
github
GNOME/gimp on GitHub GIMP_2_2_10
gnome-gitlab
GNOME/gimp on Gnome GitLab GIMP_2_2_10
gitlab
wireshark/wireshark on GitLab ethereal-0.10.14
github
wireshark/wireshark on GitHub ethereal-0.10.14
github
rocky/remake on GitHub release_0_60
sourceforge
gnuwin32 on SourceForge id-utils/4.0-1/id-utils-4.0-1.exe id-utils/4.0-1/id-utils-4.0-1-src.zip id-utils/4.0-1/id-utils-4.0-1-src.exe id-utils/4.0-1/id-utils-4.0-1-doc.zip id-utils/4.0-1/id-utils-4.0-1-dep.zip id-utils/4.0-1/id-utils-4.0-1-bin.zip cpio/2.6-1/cpio-2.6-1.exe cpio/2.6-1/cpio-2.6-1-src.zip
Maybe you can find something interesting in this list