ChimeraX Developer Meeting

Attendance: Greg, Zach, Tom, Eric

November 9, 2025

Agenda

• Start release candidates
• Qt updates to fix Mac crashes in Qt 6.9.2.
  • Crash in swap_buffers #19178
  • Crash in NSAccessibility #19187
  • OpenGL error after wake from sleep #19185
  • Crash in NSAutoreleasePool #19180
  • Tabbed tools don't show tabs often #19078
• ChimeraX 1.11 release schedule
• Chimera not working with macOS 26, graphics pane positioned over command-line.
• Work in progress reports
• Inside ribbon color?
• Make Chimera end-of-life bug report and registration changes.

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Discussion

• ChopChopMF Toolshed bundle
  • Tom reviewing dozen user interfaces provided by new ChopChopMF bundle from Lukas Bauer.
  • New Mac Qt bug observed after main window expands to be taller than screen, resizing it vertically does not relayout panels, so command-line and status line are clipped off. Redocking a floating tool and resizing can fix the layout.

• Branch for release candidate
  • Greg will branch for 1.11 release when he gets Windows signing working.
  • May be today or Wednesday.

• Release candidate builds
  • Once code is branched Zach can start release candidate builds.

• Qt 6.9.3
  • Will we try Qt 6.9.3? There is no PyQt 6.9.3 release.
  • No. Tom tried Qt 6.10 and it did not fix the only Qt bug we know how to reproduce of stacked tools not showing tabs.

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Action Items