Get Mahara
Various versions of Mahara are available for you to download.
The latest stable version is recommended for most deployments of Mahara. A demonstration installation of the latest stable Mahara is available at demo.mahara.org.
If you wish to see what is coming in the next major version of Mahara, you can download a development release from the mahara-dev package. You can see a demonstration of the latest demo release at dev.mahara.org. Alternatively, you could download a snapshot of trunk from the git repository, which you can browse online at http://git.mahara.org/?p=mahara.git . Expect to find bugs in trunk snapshots and development releases!
A nicer way to get hold of a trunk version of Mahara is by using git to check out the repository:
git clone git://git.mahara.org/git/mahara.git
How you install git depends on you OS/distribution. For Debian and Ubuntu you generally need to install git-core.
Debian users
Mahara is in Debian testing now - so you may already be able to apt-get install mahara if you're using Debian testing or unstable.
These packages may also work for Ubuntu, but they are not tested there.