say what say what say what is new

dist/preview release/what's new.md

@@ -255,6 +255,7 @@
 - Fix bug when we call `Mesh.render` twice and the material is still not ready on the second call ([barroij](https://github.com/barroij/))
 - Fixed an issue with pose input in webxr ([RaananW](https://github.com/RaananW/))
 - Fixed bug when parsing animation group without 'to' value ([noalak](https://github.com/noalak/))
+- isRightCamer and isLeftCamera were not set in WebXR ([RaananW](https://github.com/RaananW/))
 
 ## Breaking changes