On Tue, Jan 03, 2017 at 07:34:37AM +0100, Christoph Galuschka wrote:
gnucash comes from EPEL (assuming you use that, since they have 2.4.15 in their repository). Please ask there for a version bump.
Specifically, report the bug here:
https://apps.fedoraproject.org/packages/gnucash/bugs/all
Click on the "Open A New Bug (EPEL)" button.