C# 11

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•Last updated Mar 28, 2026

Spec updates for C# 11

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[Version 11.0] Feature support for list and slice patterns
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#1591 opened Mar 2, 2026 · Updated Oct 14, 2026Draft
2
[Version 11.0] Feature support for auto default structs
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#1573 opened Feb 12, 2026 · Updated Oct 14, 2026Draft
1
Remember to update ref-safe-context of output parameters for C# 11
dotnet/csharpstandard#797 · opened on May 26, 2023 · C# 11
[C# 11] allow unsafer unsafeness
dotnet/csharpstandard#950 · opened on Sep 21, 2023 · C# 11
[Version 11.0] Feature support for checked user defined operators
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#1585 opened Mar 1, 2026 · Updated Oct 14, 2026Draft
2
[Version 11.0] Feature support for extended nameof scope
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#1586 opened Mar 2, 2026 · Updated Oct 14, 2026Draft
1
[Version 11.0] Feature support for file-local types
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#1587 opened Mar 2, 2026 · Updated Oct 14, 2026Draft
1
[Version 11.0] Feature support for generic attributes
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#1588 opened Mar 2, 2026 · Updated Oct 14, 2026Draft
1
[Version 11.0] Feature support for new-lines in interpolations
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#1589 opened Mar 2, 2026 · Updated Oct 14, 2026Draft
1
[Version 11.0] Feature support for relaxed shift operator requirements
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#1590 opened Mar 2, 2026 · Updated Oct 14, 2026Draft
1
[Version 11.0] Feature support for pattern match span char on constant string
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#1594 opened Mar 5, 2026 · Updated Oct 14, 2026Draft
1
[Version 11.0] Feature support for unsigned right shift operator
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#1595 opened Mar 6, 2026 · Updated Oct 14, 2026Draft
3
[Version 11.0] Feature support for required members
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#1597 opened Mar 7, 2026 · Updated Oct 14, 2026Draft
1
[Version 11.0] Feature support for Numeric IntPtr
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#1598 opened Mar 7, 2026 · Updated Oct 14, 2026Draft
1
[Version 11.0] Feature support for raw string literals
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#1599 opened Mar 8, 2026 · Updated Oct 14, 2026Draft
1
[Version 11.0] Feature support for static abstract members in interfaces
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#1609 opened Mar 17, 2026 · Updated Oct 14, 2026Draft
2
[Version 11.0] Feature support for UTF-8 string literals
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#1610 opened Mar 18, 2026 · Updated Oct 14, 2026Draft
5
[Version 11.0] Feature support for ref fields and scoped
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#1614 opened Mar 28, 2026 · Updated Oct 14, 2026Draft
13

Issues