https://wccftech.com/psa-ipados-13-wont-be-available-for-ipad-this-week-only-ios-13-for-iphone-will-be/

It’s best that iPad users get a little bit of clarification before they get way too excited for iPadOS, which is totally not releasing this week.

Apple made a smart marketing move by announcing iPadOS alongside iOS 13. Essentially, the code base is the same, but given the changes the software brings to the table for iPad users, Apple deemed it necessary to ‘split’ things up a little.