New LAMMPS feature release 30Mar2026, stable release 22Jul2025_update4 and LAMMPS-GUI release 1.12.0 posted

Hi Everybody!

I am pleased to announce a new LAMMPS feature release (version 30 March 2026) that was just made available for download on GitHub and on the LAMMPS homepage.

You can see the detailed release notes here: Release Feature release 30 March 2026 · lammps/lammps · GitHub

The binary packages with the LAMMPS and the GUI now include LAMMPS-GUI version 1.12.0 which was released at the same time. Standalone versions of the LAMMPS-GUI binaries are also available. Those now include a LAMMPS 30 March 2026 shared library. Since the LAMMPS library is loaded dynamically in these packages, it can be switched to a different version (e.g. a customized version) though the preferences. The most visible changes in LAMMPS-GUI is are a new “About” dialog, consistent font handling and more consistent icons across platforms, and a re-implemented chart window for packages built using Qt 6.10 or later. The release notes are here: Release Version 1.12.0 · akohlmey/lammps-gui · GitHub

I want to particularly thank the testers of the pre-release versions that have helped make the new LAMMPS-GUI release even better. :partying_face:

As usual, feedback and bug reports are appreciated.

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We just also released the fourth bugfix update to the current LAMMPS stable version 22 July 2025. You can see the detailed release notes here: Release Update 4 for Stable release 22 July 2025 · lammps/lammps · GitHub