MSMS 2.6.2 for macOS and Windows

MSMS 2.6.2, our robustness release, is now available for macOS (one binary for Apple silicon and Intel Macs) and 64-bit Windows, as well as Linux.

Published

November 12, 2026

MSMS 2.6.2 is now available for macOS and Windows, as well as Linux:

macOS: one binary for Apple silicon Macs (macOS 11 or later) and Intel Macs (macOS 10.15 or later).
Windows: 64-bit Windows, and Windows on Arm through x64 emulation.

These builds include all the 2.6.2 fixes: no more crashes on very large or unusual inputs, duplicate atoms merged instead of stopping the run, and a parallel -all_components. They give byte-for-byte the same surfaces as the Linux version on our regression suite.

Older systems (macOS 10.14 or earlier, 32-bit Windows) can still use version 2.6.1.

Download MSMS 2.6.2 · Release notes

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