It’s the rolling out of the new update. It takes a while for it to filter out globally.
I’m not sure how it’s done on Xbox but you’ll need to wait for the new client to be available / downloadable.
Hopefully not too much longer (I’m still waiting on the PC update to become downloadable).
Yeah I’ve always thought it a little messy. On PC you’ll start the client, log in, then it’ll say there is a new version and exit. Start the client again and it says it’s current… log in… “you need to update” … loop.
Not sure how it’s done on xbox, but my PC one has now started updating.