Are there up-to-date official tutorials?

The tutorials linked to by the documentation seems to be for version 4.9…so how do I get updated versions of the tutorials or how do I revert from 4.20.1 to 4.9?

I’m having numerous issues following along in 4.20.1, being as though I’m learning C++ alongside of the Unreal Engine. It seems the only thing in my favor is that C++ is not my first language.

E.g try compiling the code found at https://docs.unrealengine.com/en-US/Programming/Tutorials/VariablesTimersEvents/1