There is a Gimp 2.8.20 described here
https://git.gnome.org/browse/gimp/plain/NEWS?h=gimp-2-8
and via gimpusers (Alexandre Prokoudine)
"...We expect to ship v2.10 later this year with 16/32-bit per color channel precision, basic OpenEXR support, new and updated tools, UI updates, and many more changes..."
Maybe, providing they get their layer modes sorted.
https://git.gnome.org/browse/gimp/plain/NEWS?h=gimp-2-8
and via gimpusers (Alexandre Prokoudine)
"...We expect to ship v2.10 later this year with 16/32-bit per color channel precision, basic OpenEXR support, new and updated tools, UI updates, and many more changes..."
Maybe, providing they get their layer modes sorted.