Ahh you've not seen the new Gimp-2.9 splash screen then?

What's up with that goat?
Genetically Engineered Goat, Large aka GEGL is the GIMP's new image processing core that has all the buzzwords it can eat. It takes CIE LAB, puts some EXR on top, sprinkles it with 32bit float per channel precision, composites it all with nodes and gobbles down via mipmaps really fast.
The plan to finalize transition of GIMP to using GEGL for everything has been postponed for ages. Right after branching 2.7.5 the team created a branch called goat-invasion where they are making GIMP use GEGL, for real. According to the current plans, this branch will become v2.10.
What happens when the goat invades?
Well it invaded Gimp-2.8 actually and was almost entirely ported in a few weeks. It was started as just a quick test hack and well...it just worked and so in 3 weeks Gimp-2.8 was almost totally ported to the new core.
Gimp-2.9 has that 16, and 32 bit option so as they say the Goat invasion is on!

I have yet to find a tarball for 2.9 i can compile on Windows. But i know it's new splash is a herd of flying? goats.
That is the GOAT invasion.