This version brings a rather exciting (at least, to me) update - ability to copy and resize already open LUKS filesystems.
For full details, see gparted release notes of both 0.28.0 and 0.28.1
0.28.0 - release notes (0.28.0)
0.28.1 - release notes (0.28.1)
This update is, at the moment, only pushed for Fedora 25. I will test this and submit an update for EPEL-7 in the next few days.
Obligatory screenshots -