The WMDA data-upload does not support version staging is now with XSD 2.2 yet. WMDA plans to support the new version in end November or December, 2019.
supported and open for public test during 25 Nov 2019 to 13 Dec 2019 

WMDA data-upload will still support XSD 2.1 till 2020.Q4. We will send the notification in the SCM and Connect Newsletters when it is supported.