I’ve noticed a change in behavior that I’m not sure is intentional.
The following line:
scene.Save( saveDialog.FileName, FileFormat.FBX7400Binary );
saves to fbx files that are significantly larger than the input. When switching to:
scene.Save( saveDialog.FileName, new FBXSaveOptions( FileFormat.FBX7400Binary ) );
the file is at a more reasonable size. It seems like FBXSaveOptions defaults to Compression on, and using the FileFormat.FBX… defaults to compression off.
I believe using the FileFormat overload with fbx did not disable compression in the past.