It's a fact of live that if there's a computer involved, some day you're going to face the "no longer supported" issue. You can usually live with one thing that's no longer supported, but when you have to update something to accommodate a feature or function that you don't have yet but need, that's where you can run into trouble. When it comes to computer based audio systems, my best advice is to assemble a system that works and don't change it.
Accept that there will be a time when you'll outgrow it, but hopefully you've got your money's worth from the original system and you can afford to assemble a new system to accommodate the upgrade you want. And along with that, accept that there may be some things you're currently using that won't work with the new system, so you'll have to either upgrade those, get something new that gives you what you got from the old thing, forget about that function, or, worst case, keep the old system so you'll be able to use that function when you need it.
My "office" computer is frozen at Windows XP because I use a Lotus 1-2-3 spread sheet that has macros that don't translate to Excel. The computer that works with my Audio Precision System 1 runs Windows 98SE, because the software that it talks to won't run on a newer version of Windows. There's no need to worry about support for anything I'm running on those computers (it's gone away years ago) and hopefully the hardware will last a long time.