what's new update

dist/preview release/what's new.md

@@ -74,6 +74,7 @@
 - Fix clip plane not reset to the rigth value when using mirrors ([Popov72](https://github.com/Popov72))
 - Fix lens flares not working in right handed system ([Popov72](https://github.com/Popov72))
 - Fix canvas not resized correctly in a multi-canvas scenario ([Popov72](https://github.com/Popov72))
+- Fix NaN values returned by `GetAngleBetweenVectors` when vectors are the same or directly opposite ([Popov72](https://github.com/Popov72))
 
 ## Breaking changes