AmigaOS 3.x programs on AmigaOS 4.x

[DavidF215]

How well do programs and apps created and compiled for AmigaOS 3.x perform on AmigaOS 4.x?   Do they run well, crash, run slower, have odd behaviors, etc?

[DavidF215]

Thanks for the feedback. I was hoping that 3.x programs would run decently on 4.x systems.

I have StormC v3 from my Amithlon CD. Does anyone know if upgrading to StormC v4 is worth it, or if an alternative, better compiler for 3.x/4.x exists?

Also, has the BOOL type in AmigaOS been updated to the ANSI C bool type? I was compiling some code I brought over to AOS that had bool types but StormC v3 made me change from bool to BOOL and false to FALSE along with adding an include statement for the boolean type--an odd requirement I thought.