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Add C# 8 parameter shadowing history item #54372

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Add C# 8 parameter shadowing history item
FestimReqi Jun 13, 2026
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Merge remote-tracking branch 'upstream/main' into docs/csharp-8-param…
FestimReqi Jun 15, 2026
a5c973c
Add parameter shadowing note to local functions article
FestimReqi Jun 15, 2026
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2 changes: 2 additions & 0 deletions docs/csharp/programming-guide/classes-and-structs/local-functions.md
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Expand Up @@ -18,6 +18,8 @@ helpviewer_keywords:
- Finalizers
- Other local functions

Beginning with C# 8.0, local function parameters can shadow local variables and parameters from an enclosing scope.

However, local functions can't be declared inside an expression-bodied member.

> [!NOTE]
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1 change: 1 addition & 0 deletions docs/csharp/whats-new/csharp-version-history.md
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Expand Up @@ -212,6 +212,7 @@ C# 8.0 is the first major C# release that specifically targets .NET Core. Some f
- Positional patterns
- [Using declarations](../language-reference/statements/using.md)
- [Static local functions](../programming-guide/classes-and-structs/local-functions.md)
- Lambda expressions, anonymous methods, and local functions can declare parameters that shadow local variables and parameters from an enclosing scope.
- [Disposable ref structs](../language-reference/builtin-types/ref-struct.md)
- [Nullable reference types](../language-reference/builtin-types/nullable-reference-types.md)
- [Asynchronous streams](../language-reference/statements/iteration-statements.md#await-foreach)
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