I did this in the terminal and this is what it says:
sudo add-apt-repository ppa:otto-kesselgulasch/gimp -y
sudo apt-get update && sudo apt-get install gimp -y
trw@ubuntu:~$
trw@ubuntu:~$
trw@ubuntu:~$ sudo add-apt-repository ppa:otto-kesselgulasch/gimp -y
[sudo] password for trw:
Sorry, try again.
[sudo] password for trw:
gpg: keyring `/tmp/tmpRa4UGo/secring.gpg' created
gpg: keyring `/tmp/tmpRa4UGo/pubring.gpg' created
gpg: requesting key 614C4B38 from hkp server keyserver.ubuntu.com
gpg: /tmp/tmpRa4UGo/trustdb.gpg: trustdb created
gpg: key 614C4B38: public key "Launchpad otto06217" imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
OK
I opened Gimp, it's still 2.6. Am I doing something wrong?