Version 5.0, nicknamed “Cambridge”, has been released! It is the current version of foam-extend. The release continues the tradition and spirit of the original FOAM code developed by prof. Jasak and Mr. Weller during their time at Imperial College and released as the general purpose CFD/CCM package by Nabla Ltd. in 2000. In this spirit, we reverted 18 December 2013 to the original numbering scheme (foam-2.3.2, 13 December 2004) as release number 3.0. Visit for more information.

The foam-extend project is a fork of the OpenFOAM® open source for Computational Fluid Dynamics (CFD). It is an open welcoming and integrating contributions from all users and developers. Previously known as OpenFOAM-dev and OpenFOAM-extend, contains bug fixes and performance improvements, as well as and additional features provided by community contributors. For a full list, see below and previous release notes at

OPENFOAM is a registered trademark of ESI Group. OpenFOAM-extend and foam-extend are a community effort not endorsed by ESI Group. This is a major release of foam-extend-5.0 created from the nextRelease branch of foam-extend-4.1 which consolidates cumulative development since 14 October 2019.