Update what's new

dist/preview release/what's new.md

@@ -148,6 +148,7 @@
 - Added support for animations import from separate files ([noalak](https://github.com/noalak/))
 - Use web workers to validate glTF to avoid blocking the main thread. ([bghgary](https://github.com/bghgary))
 - Update glTF validator to 2.0.0-dev.3.1. ([bghgary](https://github.com/bghgary))
+- Added experimental support for loading KTX2 files and `KHR_texture_basisu` glTF extension. ([bghgary](https://github.com/bghgary))
 
 ### Materials
 
@@ -349,3 +350,4 @@
 - Default culling strategy changed to CULLINGSTRATEGY_BOUNDINGSPHERE_ONLY ([Deltakosh](https://github.com/deltakosh/))
 - `MaterialHelper.BindLight` and `MaterialHelper.BindLights` do not need the usePhysicalLight anymore ([Sebavan](https://github.com/sebavan/))
 - `Mesh.bakeTransformIntoVertices` now preserves child world-space transforms([drigax](https://github.com/drigax))
+- Removed `setTexturesToUse` and `setCompressedTextureExclusions` from Engine. ([bghgary](https://github.com/bghgary))