Steinberg is no longer granting licenses for VST2, so legally there can be no more new VST2 developers. But not all the hosts support VST3 yet and VST3 is over

Steinberg is no longer granting licenses for VST2, so legally there can be no more new VST2 developers. But not all the hosts support VST3 yet and VST3 is over 10 years old. It's a giant pain in the ass. They are trying to force it, but people just don't want it.