DevNotes_08Sep2026

General updates (roundtable)

• Technical meeting updates (Krzywon) — 4 Sep notes
  • Presentations: SAND perspective / real-world trends (Gaudet); current status of trends vs data explorer (Crake-Merani)
  • Refactor hackathon 16–18 Sep and James’ proposal for more specific project boards
  • 6.2.1 content and owners; conda-forge / pyausaxs packaging; camp project list
• Any refactoring project updates? (Sharp/Krzywon)
  • Hackathon 16–18 Sep — planning page
  • Proposed board order: finish data explorer → plotting → perspectives (MuMag, then Invariant; Fitting last)
  • Trend objects: sasdata #216 merged 4 Sep; follow-up draft sasdata #227 and GUI sasview #4107 (draft)
• Any SASBDB integration project updates? (Wojciech)
  • Draft stack on main: #4077 export core, #4078 export dialog/Tools menu, #4079 fitting auto-fill + CorMap
• Generic Scattering Calculator redesign working group (Wojciech)
  • Aim: in a position to start implementation at contributor camp
• Sasmodels working group (refactoring / marketplace vs core) (Butler)
  • Meeting on Sep 23rd
  • Wiki page
• Contributor Camps (Butler)
  • Camp XV — Prague, 3–9 Nov 2026 — planning/info page
    • Register and get travel approval
    • Poster session — SasView usage in your research, including how AI is used or would help
      • Reminder + poster theme still to go to the developer list (Butler)
    • Expected camp projects (from technical meeting): GSC, refactoring, sasmodels rework, magnetic SANS, MCR-ALS, release automation, pixi (Marie)
    • Will start planning projects, boards, and discussions
  • Camp XVI — Soleil submitted — decision late November 2026 — target early Nov 2027

Discussions

• 6.2.1
  • Target: mid–late October, before contributor camp
  • Master issue — 6 of 12 tracker items closed
  • Closed since last meeting: magnetism always-on (#4071 / #4072), composite models (#4074 / #4082 + sasmodels #749), core_multi_shell (#4085 / sasmodels #751), What’s New cards (#3985 / #4086), bumps VarStats.label (#3977 / #4098), resolution demo (sasmodels #753 / #755)
  • Still open on the tracker:
    • #4081 Multiple / batch slicing incompatibilities — no PR
    • #3993 Leftover crumbs when renaming a model
    • #3986 Invariant upgrade part II
    • #3981 Pinned deps not used for release-branch PR builds
    • #4108 Form-factor plugin docs (pure-Python P(Q)) — new
    • #4109 Plugin model error — PR #4111
  • Also in flight / discussed for 6.2.1:
    • #4067 fit_started flag — Krzywon tested, wants more before approve; reviewer now Butler
    • #4110 ghost polydispersity comboboxes (#4105, found after #4072)
    • sasmodels #722 fractal S(Q) at small Q — listed at technical meeting
    • Include newly merged models from #719?
  • Packaging leftovers from technical meeting:
    • conda-forge 6.2.0: sasview-feedstock #56 still open (Azure/GHA failed; automerge blocked)
    • pyausaxs: no conda build; pip wheel issues on Intel Macs — James/Marie + Christian — status?
• SAS2027
  • September 2027
  • Should be possible to have a talk/presentation and user meeting area (instead of booth)

PRs

sasview: 24 open, 14 in draft

• Bug fixes and feature upgrades
  • #3995 Undo/redo stack for perspectives — Reviewer now James; still could use a second look
  • #4067 Fix the fit_started flag enablement — Krzywon: works, wants more testing; assigned to Butler
  • #4110 Ghost polydispersity function comboboxes (#4105) — New; needs review
  • #4111 App-wide event filter / plugin model error (#4109) — New; needs review
  • #4087 Flatpak automated update script — Still waiting for review (updated 3 Sep)
  • #4097 UTF-8 encoding — New; needs review
  • #4077 / #4078 / #4079 SASBDB export + fitting — Drafts
• CI / developer tooling
  • #4080 Enable CodeScene PR checks (minimally) — Needs review
  • #3842 Add pixi configuration — Technical group to review (camp project)
  • #3932 Attach binaries to release page on tag — Still needs review (quiet since May)
  • #4099 Allow pytest on an editable install — New follow-up after #3974 merge
• Merged since 25 Aug: #4072 magnetism off, #4082 composite models, #3974 pytest from repo root, #4086 What’s New, #4098 VarStats
• Closed without merge: #3947 cancel concurrent nightlies (25 Aug)

sasmodels: 9 open, 4 in draft

• #722 Fractal S(Q) accuracy at small Q — Reviewer Yun; waiting on review response; candidate for 6.2.1
• #743 Adding peak_pseudo_Voigt model — Author addressed review (7 Sep); last review expected end of next week
• #748 Enable CodeScene PR checks (minimally) — Needs review
• #752 TCCBox as an optional dependency — Reviewed by @pkienzle
• #754 UTF-8 encoding — New; needs review
• Merged since 25 Aug: #749 composite names, #751 multiplicity, #719 aggregate/chain S(Q), #755 radial slit demo

sasdata: 3 open, 2 in draft

• #227 Trend improvements — Ready for review (rebased onto refactor_24 after #216 merge)
• #216 Trend object extended work — Merged 4 Sep

Help desk staffing

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

• Sep: Jeff (primary) / Marianne
• Oct: Marianne / Paul Butler — already filled
• Roster now runs through Jan 2027; confirm Nov+ if needed

AOB