25th July 2026

OpenFOAM v14 | Patch Releases

Patched versions of the openfoam14 pack have been released for the following versions of Ubuntu Linux x86 64bit (e.g. Intel and AMD CPUs) and ARM 64bit architectures.

22.04 LTS, codename jammy
24.04 LTS, codename noble
26.04 LTS, codename resolute

See the Download v14 | Ubuntu page for installation and upgrade instructions.

The packs can be installed or upgraded on Windows and installed or upgraded on macOS.

The Patch Releases of OpenFOAM 14 are: 20260724 and 20261008.

Subversion Numbering

The OpenFOAM Foundation maintains two public repositories of source code of OpenFOAM:

The development line of OpenFOAM (OpenFOAM-dev), packaged weekly as openfoam-dev, which includes major code changes that can break backward compatibility.
The version-release source repository for the latest major version release — currently OpenFOAM-14 — that incorporates latest code fixes without breaking backward compatibility.

The openfoam14 packs include the source code of OpenFOAM. Each pack has a subversion number represented by the packaging date in YYYYMMDD format. For example, a user can list the subversions of the openfoam14 packs by the following command:

apt-cache policy openfoam14

This writes text, e.g. for the initial release and patched versions of OpenFOAM-14:

openfoam14:
  Installed: 20261008
  Candidate: 20261008
  Version table:
 *** 20261008 500
        500 http://dl.openfoam.org/ubuntu jammy/main amd64 Packages
        100 /var/lib/dpkg/status
     20260724 500
        500 http://dl.openfoam.org/ubuntu jammy/main amd64 Packages

20260714 500
500 http://dl.openfoam.org/ubuntu jammy/main amd64 Packages

Source Code of a Subversion

The OpenFOAM-14 repository is tagged with the subversion number so that users can reference the source code corresponding to a particular pack exactly. Using the tag, the corresponding source code can be obtained either as a tar.gz archive or using Git.

The patched versions can be viewed in a browser at https://dl.openfoam.org/source with links to download the archived sources. For example, to download the patch version 20260724, the user can click the link labelled 14.20260724. After downloading and extracting the archive, it is recommended to be renamed without the subversion number. From the command line the download, extraction and renaming can be done by:

wget -O - http://dl.openfoam.org/source/14.20260724 | tar xvz
mv OpenFOAM-14-* OpenFOAM-14

The same source code can be obtained from the repository using Git, e.g.

git clone git@github.com:OpenFOAM/OpenFOAM-14.git
cd OpenFOAM-14
git checkout tags/20260724