ChimeraX Developer Meeting

Attendance: Zach, Eric, Tom, Greg

May 11, 2026

Agenda

• Password protection on ChimeraX scripts web page.
• Ubuntu 26.04 builds
• Release candidate bugs of concern
  • glClear error on status line expose event, macOS 26, Qt 6.10. Ticket #20267
  • OpenGL swap_buffers crash on Mac expose event, macOS 26, Qt 6.10. Ticket #20265
  • DLL load failed: An Application Control policy has blocked this file #20228.
• Inside ribbon color?
• Toolshed reduce query result size.
• ​Residue notes in mmCIF, Oliver Clarke
• Chimera not working with macOS 26, graphics pane positioned over command-line.
• Work in progress reports
• Make Chimera end-of-life bug report and registration changes.
• Toolbar reshuffle when DICOM is put on the toolshed?

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Discussion

• Password protection on ChimeraX scripts web page
  • All of Chimera Trac is password protected to reduce impact of bots.
  • Greg made Chimera Trac scripts page not require password.
  • Tom will move 3 ChimeraX Python scripts from Chimera Trac to ChimeraX Recipes web page and put link to recipes page.

• Ubuntu 26.04 builds
  • We want to make Ubuntu 26 builds for daily, release candidates and release.
  • Github Actions does not yet have an Ubuntu 26 runner.
  • We will add Ubuntu 26 builds when Github Actions supports it.

• Release candidate bugs of concern
  • Tom saw one Qt swap_buffers crash drawing Qt interface that was not in our code. We have no work-around for this. Believe it is rare.
  • No other new bugs that look troubling.

• Medical imaging
  • Zach working on putting medical imaging on Toolshed.
  • Would like to move Medical imaging toolbar tab rendering modes to Map tab. All agreed ok to put those 3 icons on right of Map tab.

• Animation GUI issues
  • Zach fixed clicking on timeline scene selecting bottom instead of top scene when overlapped.
  • Slow down previewing SLAC movie may be because of ambient lighting recalculation when model position updated but did not actually move.

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Action Items