= Attendees =

Eric, Greg, Zach, TomG

On-site in N453.

= Agenda =

* ChimeraX
  - Qt 6 problems.
  - Windows open dialog crashes.
  - Make ChimeraX 1.4 roadmap.
  - Upgrade Trac to mysql for better reliability.
  - Is Windows crash reporting ever useful?  Should we disable it?  Will Qt 6.2 fix spurious file dialog errors?
  - Should we remove pywin32 (20 MBytes) and wmi used only to report computer model in bug reporter on Windows? Ticket #5528
  - Task termination at app quit
  - Rename ChimeraX.exe on Windows?
  - Does pip need to be stabilized?
  - Do we still need Tristan's compiled OpenMM, can we get it from conda?
  - Do we still need six (Python 2/3 compatibility package)?

* Chimera
  - Switch Chimera daily builds from Windows 7 to Windows 10

* Webservices
  - Where should internal documentation live?
 
* Action items

= Discussion =

* Native Mac M1 ChimeraX port
  - Intel Ambertools works with M1 ChimeraX since it is emulated.  TomG tested it.
  - OpenMM 7.7.0 has conda-forge Mac arm64 build, tested and included in M1 ChimeraX by TomG.
  - Three remaining libraries not ported PyTables, imagecodecs, netcdf4
  - All 3 of these unported libraries are on conda-forge for mac arm64

* Qt 6 for ChimeraX 1.4 release
  - Qt 5 on only Linux and Qt 6 on other platforms for ChimeraX 1.4 will mess up developers.
  - Tony Shaefer, author of SEQCROW ran into a few Qt 5 vs Qt 6 problems.
  - Various options for how to make separate Qt 5 and Qt 6 releases:
    * Could simply not have a Qt 5 ChimeraX 1.4 for old Linux.  Optionally Greg might get a Qt 6 release going on CentOS 7 with flatpack or singularity, but otherwise ChimeraX 1.3 would be last release for old Linux.  Need to get Scooter to agree.
    * Could delay ChimeraX 1.4 release while Greg tries ways to get Qt 6 distributed for old Linux.
    * Could release ChimeraX 1.4 with Qt 5 on all platforms and same day release ChimeraX 1.5 with Qt 6 on supported platforms (not old Linux).
    * Eric proposed asking Scooter which option he prefers.
  - Discussed with Scooter options in 6 pm meeting with all developers
    * He suggests we make ChimeraX 1.4 all distributions Qt 6
    * If Greg can make singularity or flatpack qt 6 ChimeraX for old Linux that is good.
    * If Qt 6 won't work with old Linux then we call ChimeraX 1.3 last release for CentOS 7.

* Windows crash reports
  - Get many Windows crash reports per day with Open dialog tracebacks.
  - Some open dialog tracebacks in crash reports are not fatal, and actual crash may not be related.
  - Eric suggests trying non-native Open dialog with select users who have reported and might reproduce the crash.
  - TomG made Open dialog clear the crash file when the dialog is closed so non-fatal errors do not confound the crash reports.  Changed added March 23.
  - TomG trying to make Open dialog modeless so no sub-event loop is run.
    * Mac puts modeless Open dialog on top of all other applications which is unusable.
    * On Mac can still use modal Open dialog but with no sub-eventloop using QFileDialog.open() instead of exec().


= Action Items =
  - Present github continuous integration tutorial.  Zach
  - Remove pkg-config prereq if it is not being used for builds. Tom