2.6 was released in 2008, 11 years ago, and since then the gegl backend, single window mode, layer groups, color management, and lots of additional features wer

2.6 was released in 2008, 11 years ago, and since then the gegl backend, single window mode, layer groups, color management, and lots of additional features were introduced. Check out https://en.wikipedia.org/wiki/GIMP_version_history#GIMP_2.6 https://en.wikipedia.org/wiki/GIMP_version_history#GIMP_2.6 on what you are missing out, especially by ignoring 2.10. GIMP 2.99.2 (first prerelease of the GTK3 version) is supposed to come out this year: https://www.gimp.org/news/2019/01/02/gimp-and-gegl-in-2018/ https://www.gimp.org/news/2019/01/02/gimp-and-gegl-in-2018/