Thanks to me you lost money?
I used 4.21 even though the course was for 4.17 i think. There was only one part that slightly out of date which was an AI class from memory. By the time you get to that point you’ll work that out in seconds, plus theres a Q&A section for each video and it tells you what the class name change is for later versions.
Aside from that it i cant imagine much else is different, im using the same code in 4.24 and its fine. If you ever come across a function or class that is deprecated theres usually a comment in the code to tell what to use instead.