iOS TestFlight - External Testers Not Notified of New Build

Question

I have made an app available to external TestFlight users. They have received the email and installed the app as expected. They have version 1.0, Build 1.

However, I hav

Answer 1

This doesn't seem to be working today; it seems to be a bug in Apple's side where the selection of the new version in TestFlight isn't correctly propagating out to the other systems. You'll find people on twitter and Apple's developer forums complaining of the same issue. It affects internal testers too.

I think we just have to wait for Apple to fix it; presumably that will happen in the next 24 hours...