Apple doesn’t do this, as it would reveal details about unreleased products. The scheduling model for their CPUs typically drops months after the chips ship, an

Apple doesn’t do this, as it would reveal details about unreleased products. The scheduling model for their CPUs typically drops months after the chips ship, and even then the benefit you get from that is minor. (You can try it yourself, by comparing code generated using the “wrong” microarchitecture versus the “right” one. And also keep in mind that developers don’t always update their apps immediately to use the new toolchain.)