1. Make sure RN2's database user has full database permissions for the upgrade.
2. Download the new version of RN2, unzip the files, and overwrite your old files with the new ones. (If you delete and then move files instead of overwrite them, make sure you don't delete your config.php.)
3. Visit the signups page or any admin page. RN checks your current version with the version in the install folder and upgrades automatically. Your version number should change, indicating that the upgrade was successful.
4. Delete the install directory.
