While the driver model has remained the same since Vista, hardware specs change every year or two. I don't know if there was much change for Windows 8.x, but there are some changes for Win10. Old hardware and drivers *should* work.
http://pctechmag.com/2015/03/heres-the-hardware-specs-youll-need-for-windows-10/ >Have you seen any example of that? I haven't, myself. My understanding is the driver model has been stable since the big change for Vista/Server 2008 (when all the OEMs were screaming). I haven't heard any OEM screaming lately (about drivers, anyways ;\)
Craig Berntson
MCSD, Microsoft .Net MVP, Grape City Community Influencer