Difference of two MacOS binaries for 2.3.7?

[Koji Yokota]

Dear list,

Congratulations on the release of LyX 2.3.7!

Could someone teach me the difference of two MacOS binaries for 2.3.7?
There are two binaries,
        (A) LyX-2.3.7+qt5-x86_64-arm64-cocoa.dmg and
        (B) LyX-2.3.7+qt5-x86_64-cocoa.dmg for older OS.

Question is:

- Does it mean binary (A) doesn't work on older OS's? Or can it be run on
any OS versions?
- If not, which version of OS is exactly the threshold of these two?

I'm currently checking the validity of Homebrew formula and it would be
helpful if you give me the information.

Thank you for your help.

Koji Yokota
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