Items required for UWP builds:

Build tooling

• Land uwptool (Create a CLI tool for launching UWP applications #81756)
  • listapps (Add uwptool.exe engine#26038)
  • launch (Add uwptool.exe engine#26038, Set exitcode to 0 on successful uwptool launch engine#26105)
  • launch arguments (Add uwptool.exe engine#26038)
  • install (Add install/uninstall commands to uwptool #82399) (currently implemented in tool)
  • uninstall (Add install/uninstall commands to uwptool #82399, [uwptool] Add uninstall command engine#26122, Support uninstall, install status query for UWP #82481)
• Land uwptool recipe change (flutter/recipes#13320)
• Land flutter tooling around uwptool (☂ Add UWP support to the flutter tool #70211, [flutter_tools] support flutter run -d winuwp #82373)
• Land build template (Add UWP template clarkezone/runner-uwp#2)
• Inject template name, filename etc into appxmanifest, parse manifest for name and use that for launching @jonahwilliams
• Flutter doctor support to detect absence of UWP, UWP c++ install

API

• Land ViewController API update (Windows: UWP ViewController accepts a CoreApplicationView and exposes to plugins engine#25879)

Notable bugs

• Pressing control key causes app to throw native exception (UWP: Pressing ctrl key causes a native exception #82440)
• After first run, appx package not correctly reinstalled leading to stale content (workaround: uninstall before flutter run)

Ecosystem

• Fix url_launcher infra issue: (Windows flutter/plugin build failure timing out without useful output #81297) @stuartmorgan (windows plugin builds currently disabled)
• Land url_launcher ([url_launcher] Add UWP support #70207, [url_launcher_windows] Support win32 and UWP hosts plugins#3828) @stuartmorgan Requires template for flutter create . on bot
• Land path_provider blocked on (Add support for ApplicationData.LocalSettings API's halildurmus/win32#228) @timsneath

Developer tools

• VS code debugging issue [requires E2E tooling to file] (not reproducing; perhaps not an issue, or not uwp-specific)