http://en.wikipedia.org/wiki/Color_depth#Deep_color_.2830.2F...
GIMP 2.10’s core will be 100% ported to GEGL, and
all of the legacy pixel fiddling API for plug-ins
is going to be deprecated. Once the core is completely
ported, it will be a minor effort to simply “switch on”
high bit depths and whatever color models we’d
like to see.Also: your comment was arrogant and impolite towards the GIMP team.
In fact, I use quite a lot of software from their development repositories, e.g. GCC and Blender. It is a very rare occasion that I come by a bug as most open source projects have sane version management practices and branching processes.
http://gimp.lisanet.de/Website/Download.html
The official 2.8 release was what, a week ago? I don't think it's a big deal if it comes out on one platform a few days late. :)
I'm excited about the unified interface and the new transform tool, so here's hoping it is just a couple more days.
They only seem to offer links to 2.8 for Snow Leopard and Lion, so that could also be an issue.