From pkwi at dtu.dk  Wed Jan  7 16:31:59 2026
From: pkwi at dtu.dk (=?utf-8?B?UGV0ZXIgS2rDpnIgV2lsbGVuZHJ1cA==?=)
Date: Wed, 7 Jan 2026 15:31:59 +0000
Subject: [mcxtrace-users] McStas and McXtrace 3.6.5 released
Message-ID: <5163262F-04BD-48EF-88E0-535EB0E099BE@dtu.dk>

Dear all,

A bugfix-release of McStas and McXtrace v3.6.5 is now released.
McStas installation instructions are found on GitHub<https://github.com/mccode-dev/McCode/tree/main/INSTALL-McStas>.
McXtrace installation instructions are found on GitHub<https://github.com/mccode-dev/McCode/tree/main/INSTALL-McXtrace>.

What's Changed - Main Changes:

Bugfixes, new features, all common to McStas and McXtrace:

  *   macOS bundles in 3.6.1 did not actually install that version but something earlier. Fixed by pinning in yml file, @willend in #2285<https://github.com/mccode-dev/McCode/pull/2285>
  *   PDF manuals had wrong version numbers, @willend in #2285<https://github.com/mccode-dev/McCode/pull/2285>
  *   Allow mcrun / mcdisplay to run / visualize without access to .c/.instr by @willend in #2281<https://github.com/mccode-dev/McCode/pull/2281>
  *   mcgui/mxgui editable font colors, handle long filenames without extreme window resizing by @willend in #2275<https://github.com/mccode-dev/McCode/pull/2275>
  *   Fix cross-platform sort-order issue in PowderN by @willend in #2272<https://github.com/mccode-dev/McCode/pull/2272>
  *   Platform-independent reflection list sort in Single_crystal by @willend in #2273<https://github.com/mccode-dev/McCode/pull/2273>
  *   mcrun/mxrun: feature addition - scan by seed by @willend in #2276<https://github.com/mccode-dev/McCode/pull/2276>
  *   Add mcplot toggle to "plot 1D-curves from 0-value" in linear mode by @willend in #2278<https://github.com/mccode-dev/McCode/pull/2278>
  *   Add commentstring to vim editor by @Lomholy in #2284<https://github.com/mccode-dev/McCode/pull/2284>

Other stuff

  *   %Example adjustments, McXtrace by @willend in #2269<https://github.com/mccode-dev/McCode/pull/2269>
  *   Test_SANS/Test_SAXS, supplement stats by x10 SPLIT by @willend in #2270<https://github.com/mccode-dev/McCode/pull/2270>
  *   Use ${{ matrix.mpi }} to ensure different output dirs by @willend in #2271<https://github.com/mccode-dev/McCode/pull/2271>
  *   Fix indentation bug - issue #2279 by @willend in #2280<https://github.com/mccode-dev/McCode/pull/2280>
  *   Temporarily disable this instr from McXtrace tests by @willend in #2283<https://github.com/mccode-dev/McCode/pull/2283>

Full Changelog:https://github.com/mccode-dev/McCode/compare/v3.6.1...v3.6.5


Best regards on behalf of McStas/McXtrace

Peter Kj?r Willendrup

Forskningsingeni?r, Specialkonsulent

DTU Physics

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Technical University of Denmark


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Department of Physics
Fysikvej
Building 307
DK-2800 Kongens Lyngby

Main office at
ESS DMSC
Building 305
DK-2800 Kongens Lyngby

Direct +45 2125 4612
Mobil +45 2125 4612
Fax +45 4593 2399
pkwi at fysik.dtu.dk

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