Currently no Input command or function

[fade2gray]

Not even listed in the included AutoHotkey v2 Help documentation.

So, can't use Input, [ OutputVar, Options, EndKeys, MatchList] in any shape or form.

[gregster]

Sure, you can.
There is the more flexible InputHook() which is also now available in v1 (v1.1.31+).

See also https://lexikos.github.io/v2/docs/commands/InputHook.htm#comparison

In AutoHotkey v1.1, InputHook is a replacement for the Input command, offering greater flexbility. The Input command was removed for v2.0, but the code below is mostly equivalent: [...]

[JoeWinograd]

Note this comment in the V2 changes doc:

Input (use InputHook; see its documentation for a comparison)

Doc is here:
https://lexikos.github.io/v2/docs/commands/InputHook.htm

Regards, Joe

[fade2gray]

Sure, you can.
There is the more flexible InputHook() which is also now available in v1 (v1.1.31+).

See also https://lexikos.github.io/v2/docs/commands/InputHook.htm#comparison

In AutoHotkey v1.1, InputHook is a replacement for the Input command, offering greater flexbility. The Input command was removed for v2.0, but the code below is mostly equivalent: [...]

Fair enough, but if there had been a deprecation notice in the v1 help docs instead of a footnote relegated to the remarks...

InputHook() is more flexible than the Input command

... I may not have needed to make this post ¯\_(ツ)_/¯, but thanks all the same.

[boiler]

Fair enough, but if there had been a deprecation notice in the v1 help docs instead of a footnote relegated to the remarks... I may not have needed to make this post

The documentation for Input does not carry a depreciation notice because it is not deprecated. There are many commands in v1 that are not part of v2 yet still carry full status in v1.