Update what's new

dist/preview release/what's new.md

@@ -37,6 +37,7 @@
 
 - Fix issue with the Promise polyfill where a return value was expected from resolve() ([Deltakosh](https://github.com/deltakosh))
 - Fix an issue with keyboard control (re)attachment. ([#9411](https://github.com/BabylonJS/Babylon.js/issues/9411)) ([RaananW](https://github.com/RaananW))
+- Fix direct loading of a glTF string that has base64-encoded URI. ([bghgary](https://github.com/bghgary))
 
 ## Breaking changes