Making clear that this document is used to update a Mastodon instance that is not containerized with Docker, and shows a reader where to find Docker specific updating instructions, since those are not present in this document.
``git tag -l | sort -V | head -1`` will consider release candidates as the latest version, even if there's a stable release, due to how `sort -V` orders strings. Adding ``grep -v 'rc[0-9]*$'`` to filter out the release candidate tags fixes this.