A \"Stale\" git branch is a term I\'ve heard a lot. I know it has something to do with branches which are regarded as less useful or useless, but cannot find an exact defini
The definition of a stale branch, as per GitHub documentation, is a branch that has not had any commits in the previous 3 months.
This generally indicates an old/unmaintained/not current branch.
For more information see https://help.github.com/articles/viewing-branches-in-your-repository/