AutoHotkey_H 2 vs AutoHotkey v2

[Larkal]

So I'm trying to figure out what I should transition to in regards to AutoHotkey 2 or AutoHotkey_H 2. I have a large collection of scripts written for AutoHotkey 1.1 that I'm currently converting to AHK v2.

Is AutoHotkey_H 2 suitable as a standalone scripting environment or is it designed solely to be embedded into other lower level applications?
What are the key differences between AutoHotkey 2 and AutoHotkey_H 2? Is the syntax compatible between the two?
Why would I want to use AutoHotkey_H 2 vs AutoHotkey 2?

[guest3456]

https://hotkeyit.github.io/v2/docs/AHKH_Features.htm