Would love a tutorial how to update to Debian 13

debian publishes release notes for every new release which contain instructions on how to update from a previous version. as an example, these are the release notes for bookworm: https://www.debian.org/releases/stable/amd64/release-notes/

the release notes can be found at the release information page: https://www.debian.org/releases/stable/. read it carefully when the time comes