The debian results in regexes.yaml and the test file do not give correct debian os version information, the number there is the debian package number. Here are a few UAs segments related to debian that i've seen in the last view hours.

Debian-0.9.2+git100804-1
Debian/2.26.3-2
Debian-1.8.1.13-1
Debian-3.0.6-1
Debian-3.0~rc2-2
Debian-2.0.0.12-1
Debian package 1.3.21-8

Some of the full agents clearly show that the debian number is taken some other segment in the UA.

Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.16) Gecko/20101209 Conkeror/0.9.2 (Debian-0.9.2+git100804-1) - its the conkeror version (same example in the test file)
Mozilla/5.0 (X11; U; Linux x86_64; en; rv:1.8.1.13) Gecko/20080326 (Debian-1.8.1.13-1) Epiphany/2.20 - its the gecko version number
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9) Gecko/2008062908 Firefox/3.0 (Debian-3.0~rc2-2) - its the firefox version number