Virtualization.framework was introduced in Big Sur. It builds on top of Hypervisor.framework and is essentially Apple's QEMU (in some ways quite literally, it implements QEMU's pvpanic protocol for example). Before QEMU and other VMMs gained ARM64 Hypervisor.framework support, it was the only way to run virtual machines on ARM Macs and still is the only official way to virtualize ARM macOS.

The new Tahoe framework you're probably thinking of is Containerization, which is a WSL2-esque wrapper around Virtualization.framework allowing for easy installation of Linux containers.

>a WSL2-esque wrapper around Virtualization.framework allowing for easy installation of Linux containers.

So Linux is now a first class citizen on both Windows and Mac? I guess it really is true that 'if you can't beat em, join em.' Jobs must be rolling in his grave.

I mean to be fair, WSL1 and WSL2 are extremely successful engineering efforts by Microsoft. I can’t imagine having to go back to the Cygwin days.

I'm one of the few I think who really liked Cygwin. Far from perfect of course, but I even still prefer it to WSL depending on what I'm doing.