Hello Mitch,
We are working on porting our games to WIN 10. We found out that current runtime src is not compatible and a few changes are needed. ( Mostly just compilation names ). I know you normally fix only official Unity releases, but as far as this WIN 10 release is so important, would it be possible you take a look at it before final release? There is already UNITY build that allows you create win 10 build. I can ask owner of that group to add you in.
Thank you, Marek.