= ChimeraX Developer Meeting =

Attendance: Tom, Zach, Eric, Greg

June 22, 2026

= Agenda =

* Release
  - Seems to be fine; one report of Windows DLL failure
* Not compiling Python ourselves; use !GitHub
  - Try as a tech preview
  - Still do Linux ourselves because of ssh
* ChimeraX 1.13 updates?
  - Python 3.14 (blocked by #20335 and #16848)
  - !PySide 6.11.1
    - Try it again -- in a week (along with other package updates)
* Ubuntu 26.04 builds - when Github Actions supports 26.
  - Available now; deploy into our daily builds
* Inside ribbon color?
* Toolshed reduce query result size.
* Chimera release?
* Work in progress reports
* Make Chimera end-of-life bug report and registration changes.


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= Discussion =

* CGL email server
 - Discussed steps to migrate Trac and ChimeraX mailing list when UCSF IT takes over cgl.ucsf.edu email domain.

* Improve ChimeraX nightly build emails
 - The nightly build emails often say builds did not reach plato.
 - Eric notes those builds often succeed and the email is sent before the builds complete.
 - Want the email to be deferred until builds complete so we don't waste time looking at whether compilation failed due to new commits.
 - Email should indicate if there were build errors.
 - Zach will look into improving this.

* ChimeraX package updates
 - Discussed updating to Qt 6.11, numpy 2, PySide 6.11, Python 3.14.
 - We will update to Qt 6.11 but wait on switching PyQt to PySide so we can easily track the cause of new bugs.
 - Tom will look at making ChimeraX code compliant with numpy 2.
 - There is no numpy 1 binary distribution for Python 3.14 so we would like to update to numpy 2 before updating Python to 3.14.

* Prebuilt Python
 - Zach plans to make a tech preview to try prebuilt Python binaries from Github Astro site.
 - This will allow us to use the latest Python patches without us having to compile new Python versions.

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= Action Items =