Gimp v. 2.2.16 for macports was released and it’s a small change: Gimp had been named as ‘gimp2’ in macports, but its now known simply as ‘gimp.’ *
For those with 2.2.14 or earlier installed via macports, you can’t simply do the sudo port upgrade. Instead:
1. Install the new version of macports (1.5) by issuing:
sudo port -v selfupdate
Normally, to update the gimp (or any other package) you would then issue:
sudo port upgrade outdated
But, this doesn’t work for the gimp package, because the new ‘gimp’ package is trying to overwrite the ‘gimp2’ package in /opt/local/bin/gimp, so this method of upgrading won’t work.
2. Instead, you have to uninstall gimp2 and then install gimp so, issue the following command:
sudo port uninstall gimp2
sudo port install gimp
Now, finally good to go.
* If you really want to know why it was named gimp2 instead of ‘gimp’ before, I’m not sure about this and could be totally wrong, but I think it was because when gimp ver 2 came out [in 2004], there were a lot of newer features and things, so gimp v1 and v2 were separately maintained, in case if people wanted to remain on v1, they could; so gimp2 was named so.