LAMMPS Files

This is the fourth update to the 22 July 2025 stable release that fixes bugs that have been reported since the third update and backported from the development version.

The following individual changes are included:

• remove incorrect field type override in read_dump
• avoid getting stuck in fix gcmc translation attempts within a region
• print warning messages only on MPI rank 0 in fix gcmc
• backport of bugfix from PR [#4851] and extension to fix neb/spin
• bugfix for ML-QUIP compilation from PR [#4862]
• avoid compilation failure for PLUMED package when cross-compiling for Windows
• backport consistent ordering of cross correlators between fix ave/correlate and fix ave/correlate/long from PR [#4881]
• update window manager hints for LAMMPS-GUI to remove dialog property and maximize button
• backport bugfixes from https://github.com/lammps/lammps/pull/4856 and https://github.com/lammps/lammps/pull/4772
• bugfix for fix pair that prevented it to work with hybrid pair styles reported in issue [#4890]
• backport bugfix from https://github.com/lammps/lammps/pull/4837
• backport bugfix from https://github.com/lammps/lammps/pull/4895
• backport group access bugfix for group2ndx and info from PR [#4910]
• backport bugfix for gaps between triangles in triangle meshes from PR [#4925]
• bugfix for single() function in pair style lj/cut/sphere

Full Changelog: https://github.com/lammps/lammps/compare/stable_22Jul2025_update3...stable_22Jul2025_update4

Information on the files attached to this release:

• lammps-src-22Jul2025_update4.tar.gz - LAMMPS source code with translated manual in HTML and PDF format included
• lammps-linux-x86_64-22Jul2025_update4.tar.gz - Fully static LAMMPS binaries for all Linux machines with x86_64 CPUs
• Manual_22July2025.pdf - PDF version of full manual for LAMMPS
• lammps-gui-v1.7.4-manual.pdf - Manual for LAMMPS-GUI only extracted from the LAMMPS manual above
• The following packages contain LAMMPS 22Jul2025_update4 and LAMMPS-GUI v1.7.4 pre-compiled in different packaging formats
• LAMMPS-Linux-x86_64-GUI-22Jul2025_update4.tar.gz - Binaries with required libraries included using wrapper scripts. Compatible with Ubuntu 20.04LTS or later and equivalent Linux distributions
• LAMMPS-Linux-x86_64-GUI-22Jul2025_update4.flatpak - Linux binaries in flatpak bundle format and desktop integration
• LAMMPS-macOS-multiarch-GUI-22Jul2025_update4.dmg - DMG installer for macOS version 12 (Monterey) or later. Includes support for Intel and Apple CPUs
• LAMMPS-Win10-64bit-GUI-22Jul2025_update4.exe - Installer package for 64-bit x86 Windows 10 or later (may work on older Windows versions)

If you are looking for a pre-compiled LAMMPS-GUI version that can load a custom compiled LAMMPS shared library please go to the LAMMPS-GUI release page. Standalone LAMMPS-GUI versions prior to 1.8.4 are not compatible with this release, all later 1.x.y versions are. LAMMPS-GUI version 2.x requires at least the 30 March 2026 LAMMPS version.