Select Version upgrade to request to upgrade your subscription and databases if there is a later version available.

Version upgrade button.

Select the version to upgrade your databases from the list and select Upgrade to submit the upgrade request.

Version upgrade request list with version 7.4 selected.

The upgrade will start one week from your request, according to your subscription's maintenance windows.

Review the 7.2 breaking changes or 7.4 breaking changes before you request to upgrade.