This is the VST3 version (denoted by the .vst3 extension), which is the current industry standard for plugin architecture, offering better efficiency than older VST2 (DLL) formats.
Waves' transition to primarily using VST3 shells for their latest versions isn't arbitrary. The VST3 format offers several technical advantages over the older VST2 standard: Vst Plugin Waveshell1-vst3 14.0-x64 -vst3-
DAWs like FL Studio, Ableton Live, Cubase, and Reaper. Version 14 Highlights This is the VST3 version (denoted by the