>When they contain sufficiently good code, do they get promoted to master? Yes, by being merged in. In a replication master/slave, the changes on master get r

>When they contain sufficiently good code, do they get promoted to master? Yes, by being merged in. In a replication master/slave, the changes on master get replicated to the slave, but the changes on the slave do not go up to the master, as no changes are allowed on the slave that did not come from the master. In this example the slave has no autonomy. In the git example, this is reversed, its rare that feature branches get updated to master, only if they go long enough, you can think of it as the apprentice branch operating with autonomy, learning from the master branch, until it becomes the new jedi master, and the old master retires.