For Debian stable users, there may also be newer packages available in backports, so don't forget to check there.
The [https://launchpad.net/~octave GNU Octave Team] on Launchpad
maintain a Personal Package Archive (PPA ) providing a binary packages of the latest stable versions of Octave for all versions of Ubuntu. To set up your system to install these packages
sudo apt-add-repository ppa:octave/stable