The current release of PISM is
PISM is released as source code. To get started building PISM from sources, we suggest using git to obtain the code:
git clone git://github.com/pism/pism.git pism0.7
git means that we can easily distribute corrections (patches) to fix bugs.
Alternatively you can get a
.zip archive containing a tagged source code release.
INSTALL.md in the source code or the PDF Installation Manual for more on building from source.
There is also a rapidly-evolving development version.