Not sure what Unreal Engine means by this:
Click image for larger version

Name:	Screen Shot 2017-08-07 at 1.51.09 PM.png
Views:	1
Size:	22.0 KB
ID:	1226450

But I have this version of XCode:
Click image for larger version

Name:	Screen Shot 2017-08-07 at 2.08.38 PM.png
Views:	1
Size:	76.7 KB
ID:	1226451

And I can't find anywhere a more recent version of XCode, what Im missing here?