Scribus is available for many operatings systems and comes in basically two flavors, stable and development. For almost all production work, we recommend that you use the stable version. In our development version lots of things may be regularly changing as we fix issues and introduce new features.
Currently the stable branch is the 1.4.x series. Download links for 1.4.x installers are available, click the button below. Use this branch if you want to work with a thoroughly tested software without any unpleasant surprises.
The development branch is currently 1.5.x. It’s mainly being released for people who want to help us testing and improving Scribus, so the next stable series (1.6.x) will work well. However, as of version 1.5.1, we consider the development branch reasonably stable, so it can be used for serious work by users who accept that not all new features are already working perfectly. Features already available in the officially stable version will work much better in 1.5.1+, though.
It is also possible to install 1.4.x and 1.5.x side by side, so you can work with one version and play with the other.