The codenames for every major Debian release are named after characters from Pixar’s Toy Story franchise. Debian’s unstable release is fittingly named after Sid, an unstable character from the Toy Story movies.
5 points
Numbers give the wrong impression that one version follows another. Debian release channels exit alongside each other individually. Giving the release channels names helps to make that distinction. It also makes for an easy layout of packages in APT repositories.
Sid is and always has been Sid. If you were to assign numbers, what number should replace that name? There are perfectly working labels for release channels and there is no reasonable replacement.
