Are you referring to the upgrade of notifications from the 1.x version to the 2.x version? If that is what you're referring to you'll need to migrate the notifications themselves to be event frame based. At that point you'll have both the old and new notifications running in parallel. This will allow you to confirm that the new notifications are operating as expected. Once you confirm they are operating as expected, you can delete the old notifications and finish the migration. You can find more about this process, including a walk through by one of using the utility, on our Youtube Learning Channel page.
If for whatever reason you find that the notifications are not performing as expected or the newer version of PI notifications lacks a critical feature for you, please reach out to Tech Support and we'll do our best to find parity with the feature that you're looking for.