OpenFOAM 2.1.1 is a patch release of version 2.1.0 that fixes critical bugs and improves usability and consistency in the code with over 200 code commits and over 700 file changes. As a patch release, we strongly recommend users of v2.1.0 upgrade to this version. Version 2.1.1 is distributed as:

• a packaged installation for Ubuntu Linux — the simplest installation option for OpenFOAM;
• a packaged installation for SuSE Linux;
• a packaged installation for Fedora Linux;
• a source pack for compilation on other Linux distributions.

OpenFOAM version 2.1.0 is a major release of OpenFOAM with numerous new features, distributed as:

• a packaged installation for Ubuntu Linux — the simplest installation option for OpenFOAM;
• a packaged installation for SuSE Linux;
• a packaged installation for Fedora Linux;
• a source pack for compilation on other Linux distributions.