I guess nobody has missed that Microsoft released Windows 10 recently. I have upgraded my development laptop as well and things seem to be running fine. Until now I haven’t encountered conversion issues with any of my tools yet, they all seem to be working fine.
ModelConverterX uses OpenGL, so make sure you have the latest Windows 10 driver for your graphics card installed, but that’s the only feedback I got from some users.
So upgrading to Windows 10 seems save, from my tools point of view. I also haven’t had trouble with running FSX (Steam Edition) and the other development tool I often use. But of course I’m not running the tools of a typical flightsimmer, so don’t base your decision to upgrade as well only on my advice 😉