Good news! Most 1.9.4 mods supposedly work for 1.10!
RFTools however doesn't... cause it hooked into vanilla skeleton code and that changed between the versions. So McJty just updated that little bit and now there's a 1.10 RFTools version :D
Good news! Most 1.9.4 mods supposedly work for 1.10! RFTools however doesn't... ( https://www.redd