Apparently my searching is not up to snuff. Scott replied:
It looks like Rich updated to Ceres 1.11 in Fedora 23, so all current versions of Fedora have already been updated. RHEL 7 is also using version 1.11.
Fedora package: https://admin.fedoraproject.org/pkgdb/package/rpms/ceres-solver/
Fedora updates: Fedora Updates System
So with the Ubuntu backport we’ll be good to go.