New OpenFOAM® v2606 release

The OpenFOAM Team is pleased to announce the June 2026 release of OpenFOAM® v2606. This release extends OpenFOAM-v2512 features across many areas of the code. The new functionality represents development sponsored by Keysight's customers, internally funded developments, and integration of features and changes from the OpenFOAM community.

OpenFOAM is distributed by Keysight under the GPL License. In addition to source code packages suitable for compilation on a variety of Linux and other POSIX systems, this release also has a number of pre-compiled binary packages

• Ubuntu Linux: packaged installation for Ubuntu 24.04 (LTS), 22.04 (LTS) and others
• openSUSE Linux: packaged installation for Leap 16.0, 15.7, 15.6
• Red Hat Linux variants: packaged installation for EPEL 9; Fedora 41, 42
• apptainer images: available from Docker Hub as openfoam-dev:2606-apptainer and openfoam-dev:apptainer

Windows users have three options for pre-compiled packages (more information):

• Using Windows Subsystem for Linux (based on Ubuntu, openSUSE etc.)
• Native executables with cross-compilation
• A Docker installation

OpenFOAM apptainer support is provided via description files rather than pre-assembled images:

• See packaging/containers

MacOS users have the option to compile from source, or use Docker containers for pre-compiled packages (more information).

• Updated distributedTriSurfaceMesh more...
• Improved to the splitMeshRegions utility more...
• New patchDistanceToCell cell source more...

• Improvements to inverseDistance method in overset grids more...
• Improved Finite Area more...
• Improved AMI cache: restart more...

• New two-equation RANS turbulence model: GEKO more...
• New Lagrangian patch interaction model: BaiGosman more...
• Improved convolution in turbulent digital filter inlet boundary condition more...
• Improved heat diffusion more...

• New relative velocity function object more...
• New option for polyhedral cell conversion more...
• Improved conversion tools more...
• Improved surface noise more...
• New agglomeration visualisation more...

• Community contribution: GPU more...
• Coding more...
• Improved debugging support more...
• Porting more...

• GAMG processor agglomeration : communication-aware multiple masters more...
• Parallel more...

• Community contribution: pybFoam more...
• Community contribution: pyOFTools more...
• New VTK-HDF support more...

OpenFOAM is produced by the core Keysight OpenFOAM team

• Andrew Heather
• Mattijs Janssens
• Mark Olesen
• Prashant Sonakar
• Pawan Ghildiyal
• Kutalmış Berçin
• Matej Forman
• Chiara Pesci
• Martin Lichtmes
• Jiri Polansky
• Niloufar Bordbar
• Vijaya Kumar G
• Swapnil Salokhe
• Matthieu Niess
• Solange Lecat

With wider support from

• the global Keysight Technologies teams

and contributions from

• The OpenFOAM Community