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Stay tuned for a new tech preview in the next few weeks.
Next few weeks?
I thought it was going to be this month "early July"
I'm hedging. We're aiming to ship next week, but there's some big blocker bugs that we probably want to address. Plus the July 4th holiday is upon us.
We only got 'release' bits when everyone else did, and Big Sur is VERY VERY different under the hood.
We want to release a tech preview that meets a certain quality threshold rather than getting something out there that isn't useful to test (i.e. crashy, big things not working)... so it's always tough when it comes to deciding what bugs to fix and when to ship.
I hope you add support for the Apple hypervisor framework as an option. I’m a little concerned with Apple using parallels desktop in their keynote.
Does the Apple Hypervisor support nesting? I tried parallels and if you choose Apple Hypervisor then you have no option to choose nesting.
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Sadly no, but it is the least likely to break on major OS updates and most likely to keep working when Apple ends kernel extensions
Note that the Tech Preview deprecates older CPUs that actually still run Big Sur, even if not supported by Apple.
My Mac Pro 5,1 runs Big Sur just fine after the disk has been installed on another system. But the Tech Preview does not support the older Xeons (Westmere-EP.)
Specifically the Tech Preview complains about Intel EPT hardware assisted MMU virtualization and lack of XSAVE support,