DevNotes_27Jan2026

General updates (roundtable)

• Paul Sharp has joined the SasView Leadership team
• Generic Scattering Calculator redesign working group: Jan 29 meeting moved to Feb 13th (Shapespyer meeting on Jan 29th)
• Refactoring project quarterly hackathons — update (Jeff)
  • March 13 planning - March 16 and 17 for work
• Strategy for adding new models to core and marketplace (Wojtek)
  • Paul B and Wojtek to discuss starting a working group and making a call
• Neutron GRC (Barcelona, April) — registration deadline Mar 29, update (Yun)
  • March 29 deadline for application (= required for registration)
  • Posters are limited to 74
• Brief technical meeting report (Jeff?)
  • mac Intel support: still aiming to drop by end of year? Jeff + Ursula to check with Lionel
  • Move to Python 3.14 soon for testing?
    • 3.14 has threading support which could be useful, particularly for mac?
  • release cycle of 4 per year maybe
  • 6.2 for mid year
  • early 2027 for alpha of refactoring
• Major project updates
  • Refactoring Project: roadmap highlights / blockers since last call

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Next contributor camp

• Venue scouting: Prague / Paris (SOLEIL or LPS Orsay) / ILL - Any updates?
  • propose soleil with Orelien Turo -- waiting for local verification. Propose for down time during November.
  • Dominika is very interested to host in Prague
  • ILL = Paul G. working on it.
• Next step: once potential hosts identified, send a location poll
  • Maybe take all for different years? How to chose which is which? does one offer prefer 2027 or 2026?

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Releases

• 6.1.3 track: 6.1.3a1 pre-release exists (Dec 18, 2025); nightly builds ongoing
• What’s left for 6.1.3 final + target date?
  • mostly ready... looking for mid FEB

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Pull requests

SasView/sasview (21 open PRs)

Merge candidates (approved review: 4)

• #3844 — Better stability of save/load of OMF files
• #3843 — save download due to poor IO connection?
• #3833 — Generalize Corfunc Slider

Changes requested (3)

• #3842 — Add Pixi config file + setup automated versioning
• #2782 — Interpolation for operations (Draft; long-running)
• #2315 — Auto-plot data sent to fitting (Draft; long-running)

Needs review (14)

• #3849 — Add “Help” context menu item to open online docs
• #3848 — Implemented horizontal resize
• #3847 — Remove QtWebEngine; use system browser (Draft)
• #3846 — Modify truthiness check
• #3845 — #3839: fixed handling of None for logic.kernel_module
• #3835 — Add uncertainties to Invariant inputs
• #3832 — Angularly replicated “symmetric” slicers
• #3790 — Slider option for parameters
• #3786 — Support for SAXS fitting (v2)
• #3777 — Implement event mediator (Draft)
• #3456 — Test PDF viewing (Draft)
• #3111 — Plotting refactor integration (Draft)
• #3006 — Refactoring Branch (Draft)
• #2940 — Plotting refactor (Draft)

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SasView/sasmodels (14 open PRs)

Merge candidates (approved review: 1)

• #689 — Model for a mixture of two homopolymers (RPA case 0)

Needs review (13)

• #694 — Add wavemodel as build dependency
• #676 — Update examples and plotters for bumps webview
• #673 — Fix limits on angles and angular dispersity
• #671 — Update orientation viewer
• #665 — Send data mask from theory calculator into plotter
• #658 — Simple adaptive integration
• #651 — Allow sasmodels.compare to use bumps webview (no wx)
• #608 — Better integration
• #570 — Pure python Fq for beta approximation
• #533 — Fixed switched nomenclature for length and width
• #536 — Oriented SESANS transform (Draft; changes requested)
• #507 — Paracrystalline model simulation
• #449 — WIP: spelling fixes in two_power_law (Draft; changes requested)

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SasView/sasdata (7 open PRs)

Merge candidates? (approved review: 1)

• #47 — Finishing the manipulations.py rewrite (opened Sep 17, 2023)

Needs review (4)

• #185 — Perf: optimize string concatenation using .join() (opened Jan 24, 2026)
• #101 — 48 fractional binning (Draft)
• #79 — Refactoring Branch (Draft)
• #62 — Interpolations for data operations (Draft)

No reviews / not yet in review-required bucket (2)

• #156 — Work on the SasData object definition (Draft)
• #106 — Sasview database (Draft)

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ADRs

• Finalized: Dependency Freezing (org discussion #3245)
• Sent to mailing list: Citing SasView and Parallel Projects (org discussion #3503) — updated proposal ready to send?
• Type hints (org discussion #3170) — revised proposal timeline?

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Help desk staffing

• Volunteers needed — who can cover the next 2 weeks?

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AOB