Hi Everybody!
I am pleased to announce a new LAMMPS feature release (version 11 February 2026) that was just made available for download on GitHub and on the LAMMPS homepage.
This is a big one™ with almost twice as many changes as usual. Most significant are the new GRAPHICS package with several new fixes for adding custom graphics to dump image output, the update of Kokkos library to version 5.0.x, and the refactor of fix nvt/sllod. But there are lots of other new contributions, changes, updates, and bugfixes, too. You can see the detailed release notes here: Release Feature release 11 February 2026 · lammps/lammps · GitHub
Along with the new fixes in the GRAPHICS package, there also is an expanded version of the LAMMPS Visualization Howto 10.1.2. Visualize LAMMPS snapshots — LAMMPS documentation and some commented complete inputs with complex visualizations: lammps/examples/GRAPHICS at develop · lammps/lammps · GitHub. I have posted some videos of those on YouTube
The binary packages with the LAMMPS and the GUI now include LAMMPS-GUI version 1.9.1 which was released at the same time. Standalone versions of the LAMMPS-GUI binaries are also available. Those now include a LAMMPS 11 February 2026 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 change in LAMMPS-GUI is small redesign of the ImageViewer window. Most other changes are mostly behind the scenes. The release notes are here: Release Version 1.9.1 · akohlmey/lammps-gui · GitHub
As usual, feedback and bug reports are appreciated.