Upcoming meetings for 2026

All schedule items must have a public issue or checked-in proposal that can be linked from the notes.

Schedule ASAP

Schedule when convenient

• Anonymous using declarations (jnm2, 333fred, CyrusNajmabadi)
• Triage (working set)

Recurring topics

• Triage championed features and milestones
• Design review

Schedule

Wed Apr 29, 2026

Mon Apr 27, 2026

Wed Apr 22, 2026

• Final initializers
  • LDM in 2020 approved the syntax. Next is discussing semantics.

Mon Apr 20, 2026

Wed Apr 15, 2026

• Deconstruction in lambda parameters (CyrusNajmabadi, jnm2)
  • Last conclusion: take a closer look in LDM.

Mon Apr 13, 2026

Wed Apr 8, 2026

• Target-typed static member access (jnm2, CyrusNajmabadi)
  • Continue discussing scope and open questions
• Labeled break and continue Statements (CyrusNajmabadi)
  • Last conclusion: delve deeper in a full session.

Mon Apr 6, 2026

Wed Apr 1, 2026

Mon Mar 30, 2026

(One hour only)

• MVP Summit feedback (Mads)

Wed Mar 11, 2026

• Target-typed static member access (jnm2, CyrusNajmabadi)

C# Language Design Notes for 2026

Mon Mar 9, 2026

C# Language Design Meeting for March 9th, 2026

• Extension indexers
  • Ordering for implicit indexers and list patterns
  • Slice extensions for range access
  • Spread optimization in collection expressions

Wed Feb 11, 2026

C# Language Design Meeting for February 11th, 2026

• Union patterns update

Mon Feb 9, 2026

C# Language Design Meeting for February 9th, 2026

• Closed hierarchies open questions
  • Confirming API shape
  • Blocking subtyping from other languages
  • Multiple CompilerFeatureRequired attributes
  • Same module restriction
  • Permit explicit use of abstract modifier
  • Subtype metadata

Wed Feb 4, 2026

C# Language Design Meeting for February 4th, 2026

• Discriminated unions patterns
  • Null ambiguity in constructor selection
  • Marking unions with an attribute instead of IUnion interface
  • Factory method support
  • Union member providers

Mon Feb 2, 2026

C# Language Design Meeting for February 2nd, 2026

• Extension indexers

Mon Jan 26, 2026

C# Language Design Meeting for January 26th, 2026

• Alternative syntax for caller-unsafe

Wed Jan 21, 2026

C# Language Design Meeting for January 21st, 2026

• Unsafe evolution

Mon Jan 12, 2026

C# Language Design Meeting for January 12, 2026

• Triage
  • Relaxed ordering for partial and ref modifiers
  • Deconstruction in lambda parameters
  • Unsigned sizeof
  • Labeled break and continue Statements
  • Extra accessor in property override
  • Immediately Enumerated Collection Expressions
  • Allow arrays as CollectionBuilder Create parameter type