UE4 - Different Audio Formats For Early Versions?

Which earlier UE4 versions have different audio formats?

I’m working on porting these .wav files to different Unreal Engine versions, and for UE5 it uses .WAVE and .CUE. But on the earliest 4.0.2 version, Unreal imports the .wav files and turns them into .ogg files, which can have .CUE files created.

Is that consistent across all Unreal Engine 4 versions? If not, which versions have different .wav import formats, as I’ll need to make specific versions of this asset pack for them.

Thanks!