Meeting: Wednesday, September 16, 2026 · 12:00–1:00 PM ET

Facilitator: Kelly Chan / Saleem Abdulrasool

Audience: BCNY, Apple engineers, external community (open to all)

Forum: Swift Forums — Windows

Last call notes: Windows Workgroup — September 2, 2026

1. Welcome & Agenda (~3 min)

• Confirm meeting goals
• Review open follow-ups from the GitHub project board

2. Open Forum: Community Issues (~12 min)

• No newer Windows-category topics appeared after September 2

3. Follow-Up: Open Action Items from September 2 (~13 min)

• Backtracer — Karl
  • Status of the minimal packaged reproducer and why swift-backtracer is not launching?
• Concurrency — Daniel
  • Did the custom actor on a run loop plus NWConnection approach hold?
• ICU size — Izzy/Hannah: open-licensing status for compile-time ICU compression
  • Status?
• Unicode data — Alastair
  • Can the stdlib copy also be reduced?
• Build times — Mike
  • Timing-trace findings and whether CAS should remain enabled
• WASI low-spec — Terry
  • Did the external drive unblock testing on the i3 machine?
  • May not be worked on, will be removing moving forward
• DocC — Alastair/Saleem
  • Review status for #91564 and DocC CI rebuild
• Online installer — Leonard/Mishal
  • Apple CDN bucket URLs, Jenkins smoke-test enablement, and Docker base-layer work
  • Working on Proposal to externalize the installer from build.ps1 — build emits a fixed artifact layout, installer packages it into MSIs — need Mishal’s input
• PCH/CMake — Fabrice
  • Working on defining newer CMake requirements