* Please never use GitHub's green ["Merge Pull Request"](https://help.github.com/articles/merging-a-pull-request/#merging-a-pull-request-using-the-github-web-interface) button.

* If you do, please force-push removing the merge.

* Reasons for not using the web interface button:

* The merge method will add an unnecessary merge commit.

* The rebase & merge method adds metadata to the commit title.

* The rebase method changes the author.

* The squash & merge method has been known to add metadata to the commit title.

* If more than one author has contributed to the PR, only the latest author will be considered during the squashing.

Update your `master` branch (or whichever branch you are landing on, almost always `master`)