Google's Project Zero has exposed a "high severity" flaw in macOS' kernel XNU - which apparently has issues in its implementation of copy-on-write behavior - after Apple failed to fix it in 90 days.
Windows 10 November Update out for Release Preview, ISO also available
windows 10 21h2
Build 22000.282 fixes for Ryzen L3 cache performance issue, and more
windows 11 insider preview