Upcoming changes to CONST may affect your code

[bplus]

It was broken long before when using hex and comparing a Point color to it, so I don't expect it to effect much. l already started using ~& or RGB32() colors to fix graphics I was attempting.

To me this is a long awaited fix, I doubt it will make anything incompatible?

Well, your Sudoku triggered it with me; all colors were black 
With my own code, I only had a few of these and only with colors like Const CLR_RED = &hFFFF0000
now replaced all with  Const CLR_RED = &hFFFF0000~& or Const CLR_RED = _RGB32(255,0,0)

Thanks for reporting, now fixed:
https://qb64phoenix.com/forum/showthread...0#pid22360

So the change occurred after 2020.