LDM Notes for January 12th, 2026

[333fred]

https://github.com/dotnet/csharplang/blob/main/meetings/2026/LDM-2026-01-12.md

Agenda

• 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

[Richiban]

With regards to "Labeled break and continue Statements", the primary use case for me would actually be being able to break out of a loop from within a switch statement, as that's something that's also not currently possible and irritating to work around.

loop: foreach (var item in items)
{
    switch (item)
    {
        case TypeA a:
            // Something with a
            break;
        case TypeB b:
            // Something with b
            break;
        case TypeC c:
            // I want to break out of the foreach here, not the switch
            break loop;
    }
}

If this is supported by the proposal for labeled break and continue statements, that would be the bigger win for me as I run into this scenario quite often, certainly more often than nested loops. Maybe it can be added to the proposal document?

[CyrusNajmabadi]

This is supported by the proposal