Hello Awesome Community,
We have merged a couple days back one of the biggest PR to date : our infamous support for WebGPU, huge shoutout to @Evgeni_Popov for the amazing work 
As it is a huge change (touching also WebGL even if as least as we could) we might have a few regressions. After 2 days, it looks all ok so far but we all know how it is when code changes
So please, have a read at our couple breaking changes : WebGPU Breaking Changes | Babylon.js Documentation and do not hesitate to report changes from our 4.2 version.
We will deploy a new npm next week if nothing explodes and then add the WebGPU support into the playground 