[Plan finalized - 3/28]

Based on community feedback, here is the plan for supporting Nullability annotations.

List of assemblies and respective groups:

• Group 0
  • System.Xaml
  • System.Windows.Input.Manipulations
• Group 1
  • WindowsBase
• Group 2
  • System.Windows.Presentation
  • DirectWriteForwarder
  • UIAutomationTypes
• Group 3
  • UIAutomationProvider
  • PresentationCore
• Group 4
  • ReachFramework
  • UIAutomationClient
• Group 5
  • System.Printing
  • UIAutomationClientSideProviders
  • PresentationFramework
• Group 6
  • WindowsFormsIntegration
  • PresentationUI
• Group 7
  • Themes
    • PresentationFramework.Aero
    • PresentationFramework.Aero2
    • PresentationFramework.AeroLite
    • PresentationFramework.Classic
    • PresentationFramework.Luna
    • PresentationFramework.Royale
• Group 8
  • PresentationFramework extensions
    • SystemCore
    • SystemData
    • SystemDrawing
    • SystemXml
    • SystemXmlLinq
  • System.Windows.Controls.Ribbon

Thanks @dotMorten for the suggestion