This test should be run using a big data set from a real site with many users (over 10,000) so we can spot more issues during the upgrade process.
- Restore the big data set into a database.
- Upgrade the site to the last major release.
- Upgrade the site to the latest new release candidate.
- Mention in a comment the time taken to upgrade plus any errors encountered.
- Copy and paste stats about the site from the site registration screen into a comment.