Issues

• Nigel to update the grammar checker for C# 8

  dotnet/csharpstandard#1805 · Filter by author jskeet opened on Sep 9, 2026 · C# 8.0
  

• Implementation-defined and implementation-specific

  meeting: discussmeeting: proposal
  dotnet/csharpstandard#1802 · Filter by author jskeet opened on Sep 7, 2026
  3

  

• [Version 14.0] Support optional and named arguments in Expression trees

  type: feature
  dotnet/csharpstandard#1799 · Filter by author RexJaeschke opened on Sep 3, 2026 · C# 14
  1

• foreach expansions, value collections.

  status: needs triaging
  dotnet/csharpstandard#1720 · Filter by author BillWagner opened on Jun 26, 2026 · C# 8.0
  5

• dynamic – missing contextual resolution rules

  dotnet/csharpstandard#1714 · Filter by author Nigel-Ecma opened on Jun 17, 2026 · Pre-C# 9.0
  1

• Apply discard-related changes to deconstructing foreach

  dotnet/csharpstandard#1711 · Filter by author jskeet opened on Jun 10, 2026 · Pre-C# 9.0

• Clarify array initializers and give examples for complex situations

  dotnet/csharpstandard#1705 · Filter by author jskeet opened on Jun 1, 2026 · Pre-C# 9.0
  4

  

• Reorganize how record structs are spec'd

  type: clarity
  dotnet/csharpstandard#1697 · Filter by author RexJaeschke opened on May 19, 2026 · C# 10
  

• Add doc comments to all C.3 types

  status: in-progress
  dotnet/csharpstandard#1677 · Filter by author RexJaeschke opened on May 6, 2026
  

• Come up with a model w.r.t derived interfaces

  dotnet/csharpstandard#1676 · Filter by author RexJaeschke opened on May 6, 2026 · Pre-C# 9.0

• Refactor pattern description?

  dotnet/csharpstandard#1668 · Filter by author Nigel-Ecma opened on May 5, 2026 · C# 9.0
  

• Review whether there needs to be some syncing up between §11.2.2 and §9.2.9 *Local variables*, §9.4 *Definite assignment*

  meeting: discuss
  dotnet/csharpstandard#1662 · Filter by author Nigel-Ecma opened on May 5, 2026 · C# 8.0
  14

  

• Check semantics of nested contexts in patterns in v9

  dotnet/csharpstandard#1648 · Filter by author Nigel-Ecma opened on May 5, 2026 · C# 9.0

• Add examples of deconstructor element restrictions

  dotnet/csharpstandard#1629 · Filter by author jskeet opened on Apr 9, 2026

• 12.6.6 function member invocation lacks specification of timing of reading receiver

  dotnet/csharpstandard#1584 · Filter by author GeeLaw opened on Feb 28, 2026
  1

• Create a note around preferring named elements in tuples

  dotnet/csharpstandard#1574 · Filter by author jskeet opened on Feb 13, 2026
  

• CallerMemberNameAttribute on parameter of attribute constructor referenced by a local function or its type parameter

  dotnet/csharpstandard#1553 · Filter by author KalleOlaviNiemitalo opened on Jan 26, 2026

• CallerMemberNameAttribute on non-function member

  dotnet/csharpstandard#1549 · Filter by author KalleOlaviNiemitalo opened on Jan 24, 2026

• Incorrect/unclear description of explicit conversions involving user-defined conversions

  dotnet/csharpstandard#1542 · Filter by author Nigel-Ecma opened on Jan 23, 2026 · C# 9.0

• Lack of clarity between compile-time and runtime processing of user-defined conversions

  dotnet/csharpstandard#1541 · Filter by author Nigel-Ecma opened on Jan 23, 2026 · C# 9.0

• Review spec regarding expressions without types

  dotnet/csharpstandard#1533 · Filter by author RexJaeschke opened on Jan 15, 2026
  5

  

• Attribute type list does not contain decimal

  dotnet/csharpstandard#1522 · Filter by author martingbrown opened on Dec 30, 2025
  2

• [Tools] Update tools to .NET 10

  dotnet/csharpstandard#1514 · Filter by author BillWagner opened on Dec 19, 2025
  

• Retroactive compiler bugfix allowing null conditionals to evaluate to pointer types

  dotnet/csharpstandard#1513 · Filter by author jnm2 opened on Dec 19, 2025

• Discards and ref assignment

  dotnet/csharpstandard#1499 · Filter by author GeeLaw opened on Dec 8, 2025
  1