Unreal Engine 4.10 Preview

Ok I’m new to UE and I dont know the phrases used to describe the various parts of the engine too well.
My concern is the move to Visual 2015, which I dont like at all. I have a project that I created in the UE launcher application as “C++ project”. I have the engine installed completely here as source code and as I understand it, it is compiled by my VS here right?
So am I forced to “update” to VS 2015 now? Or can I continue to use VS 2013? And do I have to get the new versions through git from now on, since it sounds like the launcher application will not work for me anymore?

I seriously am ****** off at that. I just one of the smaller graphic engines to come to UE because that engine also forced:: us to use VS 2015 without even explaining, what is so lifethreateningly important that development can not continue with 2013. I’m not a friend of progress for progress sake. “Updates” are always a hassle and without a good reason, don’t see why. Besides, I didn’t intend to leave Windows 7 behind but now I’m afraid you guys are forcing me to get this crappy Windows 10 because we all know that sooner or later VS will not run on older Windows anymore. Out of “technical reasons in the outer stratosphere which can not be explained in greater detail” or somesuch bogus reason by MS