Unity upgrade - importing assets from new SketchUp

Hi!
I am using Unity 5.5.2 and usually import assets from Sketchup 2017 where I have to save my files in an old SU8 version. Unity doesn’t support new SU formats. If I upgrade to Unity 5.6.5 or 2017.3.0 is there a chance it will allow me to import SkechUp 2016/2017 files?

I did an upgrade and it does support new SekchUp formats but with no textures. I mean, it never applies textures to imported objects, no matter they come from new or old SketchUp. I posted a new thread with this problem.