: Support for macOS Monterey is expected to end by late 2024 , meaning Apple will no longer release patches for newly discovered "zero-day" vulnerabilities on these machines.

: Most 2015 Mac models (MacBook Pro, MacBook Air, iMac) are limited to macOS Monterey as their last compatible operating system.

: These Macs use Intel processors , which have been subject to hardware-level flaws like "Downfall" that do not affect modern Apple Silicon (M1–M4) chips.