I have successfully downloaded the beta 2 update on iPhone 6 and 5S, but it’s not showing iPad Pro 10.5”, which is currently on beta 1 (15A5278f). Have tried device restart, but still not showing.
Someone on the iPad forum mentioned they were running it on their 10.5. Sure enough when I checked for the update a little while ago it was there, I did not have to sign back in either.