It’s all too easy to force push to the wrong branch, overwriting someone else’s changes with your own. Sometimes it results in losing work (unless you know how to undo almost anything in Git).
Over the next few weeks we’ll be rolling out a new feature called Protected Branches which gives repository administrators the ability to disable force pushes to specific branches. When it’s enabled for your repositories you’ll be able to go to the Branches tab in repository settings and protect branches:
In addition to blocking force pushes, a protected branch can have required status checks. Required status checks make integrations that use our Status API enforceable and you can disable the merge button until they pass:
When using required status checks, your branch must be up-to-date to ensure your tests will pass after merging. The new “Update branch” button lets you merge the latest changes from the base branch of the Pull Request with one click.