When you're ready to upgrade your instance, all you're going to need to do is apply a new DUP file.
/setup/upgradein your browser.
/proin your browser and check the footer to confirm that the update was successful.
Troubleshooting this step: if you run into problems, first check the SHA1 checksum for the DUP file. If all is well, continue on with the relevant troubleshooting steps:
Next help article: Backup, import, and export your instance →