@sapramit, if you're a MobileIron / Ivanti customer, they have a re-signing script which works. Open a support case with them if you need help using it.

Matt, if any docs have been published yet, can you please share the link?

Hugely helpful, and many thanks... but also hugely problematic. This info is coming far too late during the iOS 15 beta cycle. Any chance these requirements could be postponed to iOS 15.1+? As I mentioned earlier, large enterprises cannot possibly react this quickly to last-minute requirements. Not your call, I understand, but perhaps you could send feedback up the chain.