stable : always match the last released version of Paperwork. Only documentation updates and safe bugfixes are allowed on this branch. Minor versions comes from this branch. Please do not send me changes for this branch. Send them for the branch unstable or testing, and I will backport them if required.
testing : the next version of Paperwork, during its testing phase. No new feature is allowed. Only bugfix.
unstable : where new functionalities go.
Bugfixes go in the branch unstable and testing before going in the branch stable.