We can now announce the release of the 2025.04 version of OPM Flow. Binary packages are available in OPM’s PPA (personal package archives), ppa:opm/ppa. If you have not already enabled this PPA in your package sources you can do so through the following two commands:

sudo add-apt-repository ppa:opm/ppa
sudo apt update
sudo apt install libopm-simulators-bin

The 2025.04 OPM Flow release supports the following two Ubuntu LTS versions

• 22.04 LTS (codename Jammy Jellyfish)
• 24.04 LTS (codename Noble Numbat)

Binary packages are also available for RHEL 8 thanks to Arne Morten Kvarving. This is greatly appreciated. If you wish to build the release manually on your own system you can check out the release/2025.04 branch at tag release/2025.04/final.

This release brings with many contributions, improvements, and fixes. The preliminary release notes are provided in each repository:

OPM Common 2025.04 Release Notes
OPM Grid 2025.04 Release notes
OPM Simulators 2025.04 Release Notes

Thank you, again, to all who contributed to this release. Users who reported issues, developers who added new features, improved performance, and provided fixes to issues. A personal thank you to Bård Skaflestad for assisting me in being release manager, and to Arne Morten Kvarving and Markus Blatt for preparing the binaries.

Best Regards,

Tobias Meyer Andersen
SINTEF Digital, Mathematics & Cybernetics
Applied Computational Science group

OPM 2025.04 Release Manager