Cura 2.7.0 is in updates testing for Fedora 27: https://bodhi.fedoraproject.org/updates/FEDORA-2017-849317276e
(That update includes a list of changes.)
Also available in Copr for F26 and F25: https://copr.fedorainfracloud.org/coprs/churchyard/cura-modern/
Please go ahead and test it.
3dprinting@lists.fedoraproject.org