When will we learn about macOS 15? What important changes will it bring? When will the public beta be available? Will there be any new Macs?
virtualisation
Two watersheds that could occur in macOS 15: that it only supports Macs with Apple chips including an Arm processor, and that it opens access to older versions of macOS on Apple silicon.
Secure Boot and its 5 stages, the SSV, support for external bootable disks, the SEP, Recovery, and lightweight virtualisation.
Virtualisation of macOS on Apple silicon does deliver performance that’s impressively close to that of the host. Here are the figures to demonstrate it.
Sparse bundle passwords, shared folders in macOS VMs, and security updates for VMs, are all important fixes. But none for the Finder.
The update to bring macOS Sonoma to version 14.3 isn’t large, although it has some compelling security content […]
In a wide range of in-core tests, CPU performance in VMs is close to that of code running native on the host, and M3 VMs are faster than M1 native. With one significant exception.
From Hypervisor APIs in OS X 10.10 Yosemite in 2014, through early VirtIO kernel extensions in Mojave in 2018, and Arm hypervisor support in Big Sur.
Fixes two bugs, including the saving and use of display resolution and other settings, has revised menus, and a full 13-page Help book.
Adds bridged networking, VM settings files, prevents inadvertent window closure when a VM is running, and more. Tested with 6 distros.
The Eclectic Light Company 