Versioning

Version have the following syntax: <M>[.<m>[.<U>[-<extra>]]]

M = Major version

Major changes made / product completed.

On libraries, it means completely incompatible API with the previous version.

m = minor version

Minor changes made.

On libraries, it means new major features have been added, but API should remain compatible.

U = update version

Only bugfixes or very minor features.

Extra

May match a Git tag done before a big change (for instance: before switching from Gtk 2 to Gtk 3). If extra == "git", indicates a version directly taken from the git repository.