DevNotes_7Apr2026

General updates (roundtable)

• SASBDB integration project (Wojtek)
  • some PR but still WIP. expect to write a project report soon
• Generic Scattering Calculator redesign working group
  • the above link posts outcome from previous meeting and waiting for feedback
• Sasmodels working group (refactoring project and marketplace vs core etc) (Paul and Wojciech)
  • Organising a working group to start addressing
  • More discussions ongoing on contributor camp notes
  • Also some discussion about including some important models sooner than later if possible
• Publications (Jeff and Miguel)
  • back to 2020 but did not use DMR and sine202 numbers in search - probably should see if that brings more
  • Working to automate the process
• Merge rights for SasView currently restricted (Jeff)
  • Proposal to remove this restriction to allow merges, whilst we continue to investigate the merging of #3832
    • Restriction removed

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Next contributor camp

• Prague venue confirmed: https://github.com/SasView/sasview/wiki/ContributorCampXV
• Requirement at https://github.com/SasView/sasview/wiki/CodeCampPlanning
• Reminder to bring along any posters that may be of interest
• Discussion
• Any updates on plans for 2027?
  • May to June is when Soleil starts planning - we have to finalize by September

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Releases

• 6.1.3:

  • 6.1.3 is out

• 6.2.0:

  • Proposed release date: ~June 2026
    • This release has a lot in it. We therefore need to move soon on preparing for it.
  • Release manager - Sujaya
    • Paul S. will be backup if timelines slip etc
  • Need to start thinking about a code freeze date - current proposal is end of April

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ADRs?

• Sent for review (more work desired):
  • Ruff and Linting - https://github.com/orgs/SasView/discussions/3171#discussioncomment-15497631
• Discuss:
  • Define release process and release manager role

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Pull requests

SasView/sasview (21 open PRs)

https://github.com/SasView/sasview/pulls

Merge candidates (approved review: 5)

• #3870 - fitting report improvements (fixes several tickets) - CI fails, this needs to be addressed
• #3866 - Duplicated CI job runs on pull requests
  • Merged, but #3917 was required to fix an unforeseen problem with nightly builds
• #3888 - Improves and adds tests for Invariant Perspective UI - waiting for #3911 to be merged first - MERGED
• #3897 - Improves invariant calculator tests - waiting for #3888 to be merged first - MERGED
• #3907 - Adds corrected intensities to Corfunc output - Paul S. to do code review

Changes requested (1)

• #3842 - Add Pixi config file + setup automated versioning

Needs review - in Discussion (6)

• #3790 - Slider option for parameters
• #3847 - Remove QtWebEngine; use system browser
• #3881 - Inversion code clean up - Paul S. to review
• #3895 - v6.1.3 Changes
• #3910 - Safe flag - Paul K. has reviewed
• #3911 - Adds offscreen mode to top level conftest.py - blocker - review from Jeff requested - MERGED

Needs reviewers (0)

• None currently

DRAFTS (9)

• #3913 - Sasbdb load
• #3912 - SASBDB export
• #3902 - undo_redo branch rebased to refactor_24
• #3761 - Keep tabbed plotter inside main window
• #3111 - Plotting refactor integration
• #3006 - Refactoring Branch
• #2940 - Plotting refactor
• #2782 - Interpolation for operations (long-running)
• #2315 - Auto-plot data sent to fitting (long-running)

SasView/sasmodels (10 open PRs)

https://github.com/SasView/sasmodels/pulls

Needs review - in Discussion (5)

• #704 - Adding torus elliptical shell model
• #699 - Adding nanoprisms model (pure python)
• #694 - Adding a pure python truncated octahedron model with Fibonacci orientation averaging
• #658 - Simple adaptive integration
• #608 - Better integration

Needs reviewers (0)

• None currently

DRAFTS (5)

• #708 - Sasmodels shape visualization (Draft)
• #705 - Add tetrapod model implementation (Draft)
• #689 - Model for a mixture of two homopolymers (RPA case 0) (Draft; approved)
• #665 - Send data mask from theory calculator into plotter (Draft; approved)
• #449 - WIP: spelling fixes in two_power_law (Draft; changes requested)

SasView/sasdata (8 open PRs)

https://github.com/SasView/sasdata/pulls

Needs review - in Discussion (2)

• #198 - Refactor 24 trend
• #196 - Adds linear algebra operations - Review status? - MERGED

DRAFTS (6)

• #197 - Additional Slicers for the refactor branch (Draft)
• #156 - Work on the SasData object definition (Draft)
• #106 - Sasview database (Draft) - Jeff to get merged into refactor branch
• #101 - 48 fractional binning (Draft)
• #79 - Refactoring Branch (Draft)
• #62 - Interpolations for data operations (Draft)

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Help desk staffing

https://github.com/SasView/sasview/wiki/DevNotes_HelpDesk

• Covered through June (need summer coverage)

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AOB

• We had a request for a SasView conda package, which we currently cannot provide to due our QtWebEngine dependency.
  • This led to a wider discussion about bearing in mind the needs of downstream users, and the importance of carefully documenting significant/breaking changes.