GIMP 2.6.7 comes with lots of bug-fixes and it contains an important fix for using GIMP with the latest GEGL and babl releases.

Overview of Changes from GIMP 2.6.6 to GIMP 2.6.7
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* Bugs fixed:

591017 – Tablet pan is not working as fast as it should
577581 – Crashes when using any colors tool/function on Windows
589667 – GIMP crashes when clicking GEGL Operation on Windows
569833 – file-jpeg-save erroneous with small quality values
590638 – Changing palettes from list to grid view loses "locked to dock"
status
589674 – "Send by Email" does not update "Filename"
589674 – "Send by Email" does not update "Filename"
586851 – Transparent BMP files fail to load
589205 – help-browser uses deprecated (and sometimes broken) webkit call
582821 – 'Sphere Designer' does not reset correctly...
570353 – first time open of .svg file ignores the requested units
555777 – Export to MNG animation fails
577301 – Dithering with transparency is broken for "positioned" method
493778 – metadata plug-in crashes on some images
567466 – PNG comment not found if more than 1 tEXt chunks
585665 – Exporting to PSD with a blank text layer creates a corrupt file
586316 – Levels tool does not adjust output levels correctly if input
levels are changed
569661 – Import from PDF throws errors when entering resolution in
pixels per millimetre
567262 – Black pixels appear in "Spread" filter preview
554658 – Path Dialog: Path preview pics not to see constantly
167604 – gimp_gradient_get_color_at() may return out-of-bounds values
567393 – Rectangle select tool size shrinks to 0 if size is larger than
the image and the up or down arrow is pressed
587543 – crash when invoking certain actions by keyboard shortcut
563029 - Closing maximized image doesn't restore document window size
585488 – Perspective transformation on a layer with a mask causes crash
586008 - GIMP crashes when right-click canceling a drawing action initiated
outside layer boundaries
584345 – when printing, the number of copies should be reset to 1
557061 – Alpha to Logo
472644 – Rotate with clipping crops the whole layer
577575 – transform tool fills underlying extracted area wrongly
555738 – Image display is wrong after undoing canvas size
577024 – help-browser plugin crashes when used with webkit 1.1.3
555025 – Action GEGL box widgets weirdness

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