This upgrade operation will update the schema of your databases to the TFS 2013 format. This format is not usable on previous ...

This upgrade operation will update the schema of your databases to the TFS 2013 format. This format is not usable on previous versions of TFS and is not reversible without a backup.

You may create a backup now by launching the backup tool from the link below. You must confirm that you have a current backup before you continue.