# Latest **URL:** https://discuss.avogadro.cc/latest.md [Latest](https://discuss.avogadro.cc/latest.md) · [Categories](https://discuss.avogadro.cc/categories.md) --- ## [Welcome to Avogadro Discussion](https://discuss.avogadro.cc/t/welcome-to-avogadro-discussion/8)
**Author:** [@system](https://discuss.avogadro.cc/u/system)\ **Replies:** 0\ **Last updated:** [January 5, 2016, 4:44pm UTC](https://discuss.avogadro.cc/t/welcome-to-avogadro-discussion/8 "2016-01-05T16:44:49Z")
This is a Discourse forum for Avogadro the molecular editor and builder. All conversations related to Avogadro are warmly welcome - talk about science, teaching, ask a question about something you’re stuck on, share som… --- ## [Accessibility Roadmap for Avogadro](https://discuss.avogadro.cc/t/accessibility-roadmap-for-avogadro/7550)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 3\ **Last updated:** [October 17, 2026, 2:45pm UTC](https://discuss.avogadro.cc/t/accessibility-roadmap-for-avogadro/7550 "2026-10-17T14:45:57Z")
tldr. We’re working to make Avogadro as accessible as possible. Comments welcome on priorities, defaults, and anything we’ve missed — especially from people who use screen readers, keyboard-only input, magnification,… --- ## [Color Contrast for Labels](https://discuss.avogadro.cc/t/color-contrast-for-labels/7551)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 1\ **Last updated:** [October 17, 2026, 12:27am UTC](https://discuss.avogadro.cc/t/color-contrast-for-labels/7551 "2026-10-17T00:27:59Z")
A while ago, @brockdyer03 and @matterhorn103 suggested some tweaks to the atom label colors and contrast: Ideas for changes to the Labels display type Here’s what we had in v2.0.0: Here’s what’s coming for v2.1: … --- ## [How long it takes for conformer search?](https://discuss.avogadro.cc/t/how-long-it-takes-for-conformer-search/7545)
**Author:** [@ywoldman](https://discuss.avogadro.cc/u/ywoldman)\ **Replies:** 8\ **Last updated:** [October 15, 2026, 7:53pm UTC](https://discuss.avogadro.cc/t/how-long-it-takes-for-conformer-search/7545 "2026-10-15T19:53:04Z")
(Please describe your bug or issue) Environment Information Avogadro version: 2 Operating system and version: Windows 11 I am new to Avogadro (just started it today), so, sorry, if the question sounds silly: about ho… --- ## [Translation Help for v2.1](https://discuss.avogadro.cc/t/translation-help-for-v2-1/7548)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 0\ **Last updated:** [October 14, 2026, 12:11am UTC](https://discuss.avogadro.cc/t/translation-help-for-v2-1/7548 "2026-10-14T00:11:31Z")
Once again, I am asking for translation help. Now’s the perfect time to help improve translations before the v2.1 release on 23 October. Every language matters for chemistry worldwide. Starting now, we’re in a string f… --- ## [Plugin support for Meta UMA models](https://discuss.avogadro.cc/t/plugin-support-for-meta-uma-models/7547)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 0\ **Last updated:** [October 14, 2026, 12:09am UTC](https://discuss.avogadro.cc/t/plugin-support-for-meta-uma-models/7547 "2026-10-14T00:09:33Z")
A few people have asked about access to Facebook / Meta’s UMA models. These present a more unusual case for the plugin system. Right now, plugins get installed (e.g., Python from GitHub) and can run a setup script (e.g.… --- ## [Fixing space group perception for CIF files](https://discuss.avogadro.cc/t/fixing-space-group-perception-for-cif-files/7544)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 3\ **Last updated:** [October 13, 2026, 9:25pm UTC](https://discuss.avogadro.cc/t/fixing-space-group-perception-for-cif-files/7544 "2026-10-13T21:25:13Z")
For the next release (2.2), I’m inclined to use the gemmi library to read CIF files and handle unit cell manipulations. It also handles mmCIF / PDBx files as well as grid data (e.g. electron density maps) Gemmi is a jo… --- ## [Avogadro Desktop MCP Server](https://discuss.avogadro.cc/t/avogadro-desktop-mcp-server/7519)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 5\ **Last updated:** [October 12, 2026, 1:34pm UTC](https://discuss.avogadro.cc/t/avogadro-desktop-mcp-server/7519 "2026-10-12T13:34:33Z")
While we can provide more examples in the website, I think a lot of people are using LLM for “simple script” processing. So I’ve been thinking a bunch about providing a tool to help expose the current JSON-RPC automation… --- ## [Potential "Ring Fusion" in Template Tool](https://discuss.avogadro.cc/t/potential-ring-fusion-in-template-tool/7546)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 0\ **Last updated:** [October 9, 2026, 7:30pm UTC](https://discuss.avogadro.cc/t/potential-ring-fusion-in-template-tool/7546 "2026-10-09T19:30:54Z")
Proposal: Ring Fusion in the Template Tool tldr: A new Rings tab in the Template tool would let you click a bond to fuse a ring onto it, ChemDraw-style, so naphthalene, tetracene or fluorene take just a few clicks. Avog… --- ## [Symmetry column in Molecular Orbital table](https://discuss.avogadro.cc/t/symmetry-column-in-molecular-orbital-table/7542)
**Author:** [@Javier\_Cerezo](https://discuss.avogadro.cc/u/Javier_Cerezo)\ **Replies:** 5\ **Last updated:** [October 7, 2026, 1:06am UTC](https://discuss.avogadro.cc/t/symmetry-column-in-molecular-orbital-table/7542 "2026-10-07T01:06:25Z")
Adding the symmetry of the molecular orbitals (when available) in the table would be quite useful for analysis. Are there plans to add this feature? In a couple of weeks I will have some time to loot at this myself in th… --- ## [Plotting Conformer / Trajectory Energies](https://discuss.avogadro.cc/t/plotting-conformer-trajectory-energies/7214)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 30\ **Last updated:** [October 4, 2026, 9:06am UTC](https://discuss.avogadro.cc/t/plotting-conformer-trajectory-energies/7214 "2026-10-04T09:06:57Z")
Several people have asked about a plot for relative energies, etc. Here’s an example for an NEB trajectory. My idea is that this “Plot Conformers…” dialog would allow you to switch between RMSD or relative energies.… --- ## [Release Checklist for v2.1](https://discuss.avogadro.cc/t/release-checklist-for-v2-1/7541)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 0\ **Last updated:** [October 2, 2026, 3:53pm UTC](https://discuss.avogadro.cc/t/release-checklist-for-v2-1/7541 "2026-10-02T15:53:24Z")
Right now, we’re entering a string-freeze and feature-freeze period for the v2.1 release (intended for 23 October). Here’s an initial checklist - this will update as bugs / issues appear. If you’re experiencing bugs, pl… --- ## [Support for CP2K](https://discuss.avogadro.cc/t/support-for-cp2k/7537)
**Author:** [@Juanes](https://discuss.avogadro.cc/u/Juanes)\ **Replies:** 8\ **Last updated:** [October 2, 2026, 1:09am UTC](https://discuss.avogadro.cc/t/support-for-cp2k/7537 "2026-10-02T01:09:45Z")
I saw that there is an old post about CP2K input generators. New CP2K input generator in Avogadro, I was wondering if there are plans to incorporate additional support for CP2K / periodic calculations in general? I was … --- ## [Text Rendering Improvements](https://discuss.avogadro.cc/t/text-rendering-improvements/7540)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 0\ **Last updated:** [October 1, 2026, 5:30pm UTC](https://discuss.avogadro.cc/t/text-rendering-improvements/7540 "2026-10-01T17:30:28Z")
Several times, people have bugged me about the text rendering quality (e.g., labels). There are a few approaches with OpenGL and not being an expert, I haven’t bothered much. I figured out how to render the text at high… --- ## [October 2026 Development Updates](https://discuss.avogadro.cc/t/october-2026-development-updates/7539)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 0\ **Last updated:** [October 1, 2026, 4:25pm UTC](https://discuss.avogadro.cc/t/october-2026-development-updates/7539 "2026-10-01T16:25:40Z")
This month will be focused on bug fixes, documentation updates, etc. for the v2.1 release on 23 October (10/23 here in the US - part of National Chemistry Week). September was a busy month with new features, lots of bug … --- ## [Support for QChem w. periodic boundary conditions (QCPBC)](https://discuss.avogadro.cc/t/support-for-qchem-w-periodic-boundary-conditions-qcpbc/7538)
**Author:** [@Juanes](https://discuss.avogadro.cc/u/Juanes)\ **Replies:** 0\ **Last updated:** [October 1, 2026, 3:45pm UTC](https://discuss.avogadro.cc/t/support-for-qchem-w-periodic-boundary-conditions-qcpbc/7538 "2026-10-01T15:45:56Z")
While on the subject of periodic calculations, QChem is currently developing the infrestructure for periodic calculations (QCPBC). Would it be possible to extend support to these outputs? In this example, I conceive just… --- ## [Need Feedback - Changing Bond Lengths - Discoverability](https://discuss.avogadro.cc/t/need-feedback-changing-bond-lengths-discoverability/7534)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 8\ **Last updated:** [September 30, 2026, 7:28pm UTC](https://discuss.avogadro.cc/t/need-feedback-changing-bond-lengths-discoverability/7534 "2026-09-30T19:28:25Z")
One thing that came up in the survey results were users unsure of how to change bond lengths, angles, dihedrals to particular values. I see that as a documentation problem (e.g., hey, you can already do that by changing… --- ## [Fonts in SVG icons](https://discuss.avogadro.cc/t/fonts-in-svg-icons/6653)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 4\ **Last updated:** [September 30, 2026, 7:03am UTC](https://discuss.avogadro.cc/t/fonts-in-svg-icons/6653 "2026-09-30T07:03:25Z")
This one is mainly for @matterhorn103 at some point. I get the following message on launch on Mac or Windows: qt.qpa.fonts: Populating font family aliases took 186 ms. Replace uses of missing font family "Inter" with … --- ## [Isosurface Value in orbital viewer](https://discuss.avogadro.cc/t/isosurface-value-in-orbital-viewer/7536)
**Author:** [@lukas.guhl](https://discuss.avogadro.cc/u/lukas.guhl)\ **Replies:** 3\ **Last updated:** [September 30, 2026, 12:37am UTC](https://discuss.avogadro.cc/t/isosurface-value-in-orbital-viewer/7536 "2026-09-30T00:37:20Z")
Hi everyone, When looking at orbitals in the default MO popup that opens when loading a Molden file or something similar, I would really appreciate a way to adjust the isosurface value right there. This is already possi… --- ## [Webassembly build](https://discuss.avogadro.cc/t/webassembly-build/7394)
**Author:** [@Conrad\_Kirschner](https://discuss.avogadro.cc/u/Conrad_Kirschner)\ **Replies:** 6\ **Last updated:** [September 25, 2026, 7:08pm UTC](https://discuss.avogadro.cc/t/webassembly-build/7394 "2026-09-25T19:08:03Z")
As mentioned, I would like to create a webassembly build for it. Background is, that we have restricted computer policies + with webassembly we are running in a sandboxed system. Also easier integrate able into our web… --- ## [Z-matrices in input file generator](https://discuss.avogadro.cc/t/z-matrices-in-input-file-generator/7535)
**Author:** [@Matthew\_Graneri](https://discuss.avogadro.cc/u/Matthew_Graneri)\ **Replies:** 1\ **Last updated:** [September 23, 2026, 5:13pm UTC](https://discuss.avogadro.cc/t/z-matrices-in-input-file-generator/7535 "2026-09-23T17:13:45Z")
Hi there, A lot of people have been asking for Z-matrix editors in Avogadro which apparently were never shipped with the original Avogadro. However, something which seems to be missing in Avogadro 2 which was in the or… --- ## [Windows bug with generic .out or .log files](https://discuss.avogadro.cc/t/windows-bug-with-generic-out-or-log-files/7520)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 4\ **Last updated:** [September 22, 2026, 5:02pm UTC](https://discuss.avogadro.cc/t/windows-bug-with-generic-out-or-log-files/7520 "2026-09-22T17:02:56Z")
Many people have reported issues reading .out or .log files on Windows. I’ve tried to eliminate a few obvious bugs, and it’s still not working. I think this latest build should fix the problem (and if not, give a very d… --- ## [Trouble opening CFour output](https://discuss.avogadro.cc/t/trouble-opening-cfour-output/7526)
**Author:** [@Juanes](https://discuss.avogadro.cc/u/Juanes)\ **Replies:** 6\ **Last updated:** [September 21, 2026, 7:33pm UTC](https://discuss.avogadro.cc/t/trouble-opening-cfour-output/7526 "2026-09-21T19:33:51Z")
I’m trying to open some CFour optimizations to test the new Z-matrix functionality but they fail to do so with the error" with "OpenBabel: Generic Output file format" failed. OpenBabel error: conversion failed. I’d app… --- ## [Crash on opening Orca output (possibly related to dummy atom?)](https://discuss.avogadro.cc/t/crash-on-opening-orca-output-possibly-related-to-dummy-atom/7533)
**Author:** [@Matthew\_Graneri](https://discuss.avogadro.cc/u/Matthew_Graneri)\ **Replies:** 2\ **Last updated:** [September 21, 2026, 12:48pm UTC](https://discuss.avogadro.cc/t/crash-on-opening-orca-output-possibly-related-to-dummy-atom/7533 "2026-09-21T12:48:27Z")
I believe this to be a bug with Avogadro: I’m trying to open an Orca output file using the latest release version of Avogadro 2 (2.0.0), but it crashes immediately as soon as I select the file. I suspect that it may be… --- ## [New Z-Matrix Editor](https://discuss.avogadro.cc/t/new-z-matrix-editor/7523)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 9\ **Last updated:** [September 21, 2026, 7:03am UTC](https://discuss.avogadro.cc/t/new-z-matrix-editor/7523 "2026-09-21T07:03:16Z")
There have been several requests for a z-matrix editor over the years. We had something for v1.0, but never shipped it because it didn’t feel right. (Part of the problem is the need to renumber atoms to make a coherent z… --- ## [Automated Testing Status](https://discuss.avogadro.cc/t/automated-testing-status/7531)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 1\ **Last updated:** [September 20, 2026, 6:52pm UTC](https://discuss.avogadro.cc/t/automated-testing-status/7531 "2026-09-20T18:52:27Z")
One task I’ve been doing in free moments is improving test coverage - and using automated tools (like Claude Code) is bug-hunting. This includes tests using “sanitizers” like Address Sanitizer, Thread Sanitizer, Leak San… --- ## [A nightly Flatpak](https://discuss.avogadro.cc/t/a-nightly-flatpak/7530)
**Author:** [@matterhorn103](https://discuss.avogadro.cc/u/matterhorn103)\ **Replies:** 2\ **Last updated:** [September 19, 2026, 11:37pm UTC](https://discuss.avogadro.cc/t/a-nightly-flatpak/7530 "2026-09-19T23:37:35Z")
I don’t know how many users of the beta Flatpak read this forum – in fact, we have no idea how many users there are of the beta at all – but if there are any, perhaps they could weigh in. For all other platforms, the pr… --- ## [Feedback Wanted: Manage Plugin Dialog](https://discuss.avogadro.cc/t/feedback-wanted-manage-plugin-dialog/7509)
**Author:** [@ghutchis](https://discuss.avogadro.cc/u/ghutchis)\ **Replies:** 7\ **Last updated:** [September 18, 2026, 11:08pm UTC](https://discuss.avogadro.cc/t/feedback-wanted-manage-plugin-dialog/7509 "2026-09-18T23:08:56Z")
The good news is that we have ~30 plugins and more to come. The trick is that we’ll need some better organizational and search options for the “Manage Plugins” dialog and I’d like some feedback and suggestions. As I… --- ## [Naming input files](https://discuss.avogadro.cc/t/naming-input-files/7527)
**Author:** [@Helium5793](https://discuss.avogadro.cc/u/Helium5793)\ **Replies:** 5\ **Last updated:** [September 17, 2026, 10:19pm UTC](https://discuss.avogadro.cc/t/naming-input-files/7527 "2026-09-17T22:19:18Z")
I have bee working with the input files and have found that the default name is job whatever. If I am running through several molecules I have to take the time to rename them to a unique name. It seems to me it would… --- ## [Bug with Molecular Formula](https://discuss.avogadro.cc/t/bug-with-molecular-formula/7528)
**Author:** [@Eitan\_Feldman1](https://discuss.avogadro.cc/u/Eitan_Feldman1)\ **Replies:** 4\ **Last updated:** [September 16, 2026, 9:08pm UTC](https://discuss.avogadro.cc/t/bug-with-molecular-formula/7528 "2026-09-16T21:08:29Z")
Please consider submitting issues to GitHub which will enable tracking bug reports and suggestions. These will be closed and updated automatically when they are fixed – including notifications. I believe this to be a bu… [Next page](https://discuss.avogadro.cc/latest.md?page=1)