I thought it would take much longer but no, we can already enjoy in Debian Testing de Gimp 2.8, with all the advantages and improvements that this new version includes.
Of all those improvements already we talk in this post, and although on a technical level many changes were added, I think that what is most appreciated by the user, is the option to Single window. If you don't have it installed, you just have to open a terminal and put:
$ sudo aptitude install gimp
or if you already have it on your PC, update from the repositories .. 😀