If you're a developer, or would just like to tinker with the latest and greatest version of the Citadel source code currently in development, you're welcome to use our source code repository to download up-to-the-minute updates of what we've currently got sitting on the source code server. Keep in mind that what you download is unreleased code, and as such is not supported in any way. There's no guarantee it'll even compile properly. What it will do is give you an opportunity to see what's going on in the development community, offer you something to tinker with, and if you'd like, you might even consider fixing bugs or adding features and sending them in. (If you do so, please send in small, well-documented patches based on the very latest source tree.)
git clone git://git.citadel.org/appl/gitroot/citadel.git
./bootstrap to generate your configure script, then run it as usual../bootstrap