master tracking
Mastodon is developed with git version control, and the master branch is always up to date and operational. From this master branch, a version number tag is added at the timing when the target function is ready, and it is officially released.
Master follow-up is a style that is used when participating in development and testing in the policy of updating the server that it manages.
Incorporate source code that hasn't been tested much after adding features, and participate in testing with the knowledge of the risk of some problems. Therefore, you need to understand what changes are actually made in master.