Using Win8.0 and VS 2012, should I upgrade to Win8.1 and VS 2013, or just go for Win10 and VS 2015?

I have Unity 5 and am currently doing development on Win 8.0 and Visual Studio 2012. I want to continue releasing Win 8.0 store apps, but also add Win 8.1 universal apps (mostly for the phone part, as I currently don’t release for Win phone at all).

So I’m thinking about upgrading to Win 8.1 and VS 2013. Will I have issues with that? Will I still be able to update my 8.0 apps, since I know a lot of people haven’t upgraded to Win 8.1 yet, so I want to continue to release 8.0 as well as 8.1 now.

Or should I just jump to Win 10 and VS 2015? Has Unity been tested at all, or will it work well with those yet? I’m worried about how games will run in Win 10, now that metro/store apps don’t have to be full screen. So I do want to test with Win10 ASAP, but not sure if I should upgrade my development system yet (I do have 2 PCs, but I usually/currently do all of my development and testing on the same one, which is nice/easy/cheap).

Thanks to Microsoft BizSpark, I get all of the software for free, so cost isn’t a factor in which OS to choose, or if I go to one first, then the other.

There is still no Unity support for VS2015/Win10, so I wouldn’t recommend to jump very soon.

Thanks for the clarification, I’ll try 8.1/2013 for now.

My game builds and runs fine on WP8. But when I try to compile for WP8.1, I get problems. Think I’ll be sticking with WP8 for now, myself.

I haven’t got as far as publishing yet, but I was able to compile fine. What issues are you having? I’m on hold for now, because I don’t want to release for Windows phone without having a phone to test with, and not yet in a hurry to drop about $100 on another test device… especially not since my game downloads have fallen about 50% in the last couple months. I guess the Christmas/New Year’s trend is over, or just a slow time for gamers… everyone going outside for Spring? lol