What happened to 10.1.5131?

I am using 10.1.5131, which has been removed from the Release History page. The latest available there now is 10.1.4588.

Is there an issue with 10.1.5131?

From what I’ve read on the forum in the last day, Quote:- the new interim version hadn’t passed the full QA testing and so had some issues & is now being updated / replaced with a later official beta 10.2.x version soon. So keep watching the release history page for the next update.

Thanks for the explanation.

Is there a timeline for the official release?