I love GIMP 2.9 because the user interface is way more modern than GIMP 2.8. Because GIMP 2.9 will never be released (it paves the way for a future GIMP 2.10), I built it myself over six months ago.
However, it started crashing after our recent updates to Fedora 23. GEGL was broken, causing the application to hang.
This fortunately has a pretty quick fix as I discovered today. Just rebuild and reinstall GEGL system wide. The GEGL developers have patched the problem in the master branch.
It's working again :)
