Update speclet locations for C# 14 (#47871)

* Update speclet locations for C# 14

See dotnet/csharplang#9573

* more link warnings

* fix one last warning

Author: BillWagner

docfx.json

@@ -534,7 +534,8 @@
                 "_csharplang/proposals/csharp-11.0/*.md": "09/30/2022",
                 "_csharplang/proposals/csharp-12.0/*.md": "08/15/2023",
                 "_csharplang/proposals/csharp-13.0/*.md": "10/31/2024",
-                "_csharplang/proposals/*.md": "06/19/2025",
+                "_csharplang/proposals/csharp-14.0/*.md": "08/06/2025",
+                "_csharplang/proposals/*.md": "08/06/2025",
                 "_roslyn/docs/compilers/CSharp/Compiler Breaking Changes - DotNet 7.md": "11/08/2022",
                 "_roslyn/docs/compilers/CSharp/Compiler Breaking Changes - DotNet 8.md": "11/08/2023",
                 "_roslyn/docs/compilers/CSharp/Compiler Breaking Changes - DotNet 9.md": "11/09/2024",
@@ -706,15 +707,15 @@
                 "_csharplang/proposals/csharp-13.0/ref-struct-interfaces.md": "Allow ref struct types to implement some interfaces",
                 "_csharplang/proposals/csharp-13.0/partial-properties.md": "All partial properties and indexers",
                 "_csharplang/proposals/csharp-13.0/overload-resolution-priority.md": "Overload resolution priority tiebreaker attribute",
-                "_csharplang/proposals/field-keyword.md": "The `field` contextual keyword",
-                "_csharplang/proposals/unbound-generic-types-in-nameof.md": "Unbound generic types in `nameof`",
-                "_csharplang/proposals/first-class-span-types.md": "First-class span types",
-                "_csharplang/proposals/simple-lambda-parameters-with-modifiers.md": "Simple lambda parameters with modifiers",
-                "_csharplang/proposals/partial-events-and-constructors.md": "Partial events and constructors",
-                "_csharplang/proposals/null-conditional-assignment.md": "Null conditional assignment",
-                "_csharplang/proposals/extensions.md": "Extension members",
-                "_csharplang/proposals/user-defined-compound-assignment.md": "User-defined compound assignment",
-                "_csharplang/proposals/ignored-directives.md": "Ignored preprocessor directives",
+                "_csharplang/proposals/csharp-14.0/field-keyword.md": "The `field` contextual keyword",
+                "_csharplang/proposals/csharp-14.0/unbound-generic-types-in-nameof.md": "Unbound generic types in `nameof`",
+                "_csharplang/proposals/csharp-14.0/first-class-span-types.md": "First-class span types",
+                "_csharplang/proposals/csharp-14.0/simple-lambda-parameters-with-modifiers.md": "Simple lambda parameters with modifiers",
+                "_csharplang/proposals/csharp-14.0/partial-events-and-constructors.md": "Partial events and constructors",
+                "_csharplang/proposals/csharp-14.0/null-conditional-assignment.md": "Null conditional assignment",
+                "_csharplang/proposals/csharp-14.0/extensions.md": "Extension members",
+                "_csharplang/proposals/csharp-14.0/user-defined-compound-assignment.md": "User-defined compound assignment",
+                "_csharplang/proposals/csharp-14.0/ignored-directives.md": "Ignored preprocessor directives",
                 "_roslyn/docs/compilers/CSharp/Compiler Breaking Changes - DotNet 7.md": "C# compiler breaking changes since C# 10",
                 "_roslyn/docs/compilers/CSharp/Compiler Breaking Changes - DotNet 8.md": "C# compiler breaking changes since C# 11",
                 "_roslyn/docs/compilers/CSharp/Compiler Breaking Changes - DotNet 9.md": "C# compiler breaking changes since C# 12",
@@ -832,15 +833,15 @@
                 "_csharplang/proposals/csharp-13.0/ref-struct-interfaces.md": "This proposal provides features that enable interface authors to allow `ref struct` types to implement a particular interface",
                 "_csharplang/proposals/csharp-13.0/partial-properties.md": "This proposal provides for partial properties and indexers, allowing the definition of a property or indexer to be split across multiple parts.",
                 "_csharplang/proposals/csharp-13.0/overload-resolution-priority.md": "This proposal introduces a new attribute, `OverloadResolutionPriorityAttribute`, that can be applied to methods to influence overload resolution.",
-                "_csharplang/proposals/field-keyword.md": "This proposal introduces a new keyword, `field`, that accesses the compiler generated backing field in a property accessor.",
-                "_csharplang/proposals/unbound-generic-types-in-nameof.md": "This proposal introduces the ability to use unbound generic types such as `List<>` in `nameof` expressions. The type argument isn't required.",
-                "_csharplang/proposals/first-class-span-types.md": "This proposal provides several implicit conversions to `Span<T>` and `ReadOnlySpan<T>` that enable library authors to have fewer overloads and developers to write code that resolves to faster Span based APIs",
-                "_csharplang/proposals/simple-lambda-parameters-with-modifiers.md": "This proposal allows lambda parameters to be declared with modifiers without requiring their type names. You can add modifiers like `ref` and `out` to lambda parameters without specifying their type.",
-                "_csharplang/proposals/partial-events-and-constructors.md": "This proposal allows partial events and constructors to be declared in partial classes. The event and constructor can be split across class declarations.",
-                "_csharplang/proposals/null-conditional-assignment.md": "This proposal allows the null conditional operator to be used for the destination of assignment expressions. This allows you to assign a value to a property or field only if the left side is not null.",
-                "_csharplang/proposals/extensions.md": "This proposal enables new kinds of extension members. These new extension members support extension properties, extension static members, including extension operators.",
-                "_csharplang/proposals/user-defined-compound-assignment.md": "This proposal introduces user-defined compound assignment operators. Developers can override compound assignment, increment, and decrement operators.",
-                "_csharplang/proposals/ignored-directives.md": "This proposal allows a source file to include ignored directives. In most cases, ignored directives are used for file based programs, for example `#!`",
+                "_csharplang/proposals/csharp-14.0/field-keyword.md": "This proposal introduces a new keyword, `field`, that accesses the compiler generated backing field in a property accessor.",
+                "_csharplang/proposals/csharp-14.0/unbound-generic-types-in-nameof.md": "This proposal introduces the ability to use unbound generic types such as `List<>` in `nameof` expressions. The type argument isn't required.",
+                "_csharplang/proposals/csharp-14.0/first-class-span-types.md": "This proposal provides several implicit conversions to `Span<T>` and `ReadOnlySpan<T>` that enable library authors to have fewer overloads and developers to write code that resolves to faster Span based APIs",
+                "_csharplang/proposals/csharp-14.0/simple-lambda-parameters-with-modifiers.md": "This proposal allows lambda parameters to be declared with modifiers without requiring their type names. You can add modifiers like `ref` and `out` to lambda parameters without specifying their type.",
+                "_csharplang/proposals/csharp-14.0/partial-events-and-constructors.md": "This proposal allows partial events and constructors to be declared in partial classes. The event and constructor can be split across class declarations.",
+                "_csharplang/proposals/csharp-14.0/null-conditional-assignment.md": "This proposal allows the null conditional operator to be used for the destination of assignment expressions. This allows you to assign a value to a property or field only if the left side is not null.",
+                "_csharplang/proposals/csharp-14.0/extensions.md": "This proposal enables new kinds of extension members. These new extension members support extension properties, extension static members, including extension operators.",
+                "_csharplang/proposals/csharp-14.0/user-defined-compound-assignment.md": "This proposal introduces user-defined compound assignment operators. Developers can override compound assignment, increment, and decrement operators.",
+                "_csharplang/proposals/csharp-14.0/ignored-directives.md": "This proposal allows a source file to include ignored directives. In most cases, ignored directives are used for file based programs, for example `#!`",
                 "_roslyn/docs/compilers/CSharp/Compiler Breaking Changes - DotNet 7.md": "Learn about any breaking changes since the initial release of C# 10 and included in C# 11",
                 "_roslyn/docs/compilers/CSharp/Compiler Breaking Changes - DotNet 8.md": "Learn about any breaking changes since the initial release of C# 11 and included in C# 12",
                 "_roslyn/docs/compilers/CSharp/Compiler Breaking Changes - DotNet 9.md": "Learn about any breaking changes since the initial release of C# 12 and included in C# 13",
@@ -868,6 +869,7 @@
                 "_csharplang/proposals/csharp-11.0/*.md": "C# feature specifications",
                 "_csharplang/proposals/csharp-12.0/*.md": "C# feature specifications",
                 "_csharplang/proposals/csharp-13.0/*.md": "C# feature specifications",
+                "_csharplang/proposals/csharp-14.0/*.md": "C# feature specifications",
                 "_csharplang/proposals/*.md": "C# feature specifications (preview)",
                 "docs/framework/**/*.md": ".NET Framework",
                 "docs/framework/data/adonet/**/*.md": "ADO.NET",

docs/csharp/includes/field-preview.md

@@ -7,6 +7,4 @@ ms.date: 10/30/2024
 
 > [!IMPORTANT]
 >
-> The `field` keyword is a preview feature in C# 13. You must be using .NET 9 and set your `<LangVersion>` element to `preview` in your project file in order to use the `field` contextual keyword.
->
-> You should be careful using the `field` keyword feature in a class that has a field named `field`. The new `field` keyword shadows a field named `field` in the scope of a property accessor. You can either change the name of the `field` variable, or use the `@` token to reference the `field` identifier as `@field`. You can learn more by reading the feature specification for [the `field` keyword](~/_csharplang/proposals/field-keyword.md).
+> You should be careful using the `field` keyword feature in a class that has a field named `field`. The new `field` keyword shadows a field named `field` in the scope of a property accessor. You can either change the name of the `field` variable, or use the `@` token to reference the `field` identifier as `@field`. You can learn more by reading the feature specification for [the `field` keyword](~/_csharplang/proposals/csharp-14.0/field-keyword.md).

docs/csharp/language-reference/keywords/extension.md

@@ -61,7 +61,7 @@ The equivalent extension method declarations demonstrate how those type paramete
 
 ## See also
 
-- [Extensions feature specification](~/_csharplang/proposals/extensions.md)
+- [Extensions feature specification](~/_csharplang/proposals/csharp-14.0/extensions.md)
 
 ## C# language specification
 

docs/csharp/language-reference/operators/addition-operator.md

@@ -72,7 +72,7 @@ A user-defined type can [overload](operator-overloading.md) the `+` operator. Wh
 
 ## C# language specification
 
-For more information, see the [Unary plus operator](~/_csharpstandard/standard/expressions.md#1292-unary-plus-operator) and [Addition operator](~/_csharpstandard/standard/expressions.md#12105-addition-operator) sections of the [C# language specification](~/_csharpstandard/standard/README.md). For more information on overloading the compound assignment operators in C# 14 and later, see the [user defined compound assignment](~/_csharplang/proposals/user-defined-compound-assignment.md) feature specification.
+For more information, see the [Unary plus operator](~/_csharpstandard/standard/expressions.md#1292-unary-plus-operator) and [Addition operator](~/_csharpstandard/standard/expressions.md#12105-addition-operator) sections of the [C# language specification](~/_csharpstandard/standard/README.md). For more information on overloading the compound assignment operators in C# 14 and later, see the [user defined compound assignment](~/_csharplang/proposals/csharp-14.0/user-defined-compound-assignment.md) feature specification.
 
 ## See also
 

docs/csharp/language-reference/operators/arithmetic-operators.md

@@ -290,7 +290,7 @@ For more information, see the following sections of the [C# language specificati
 - [Compound assignment](~/_csharpstandard/standard/expressions.md#12214-compound-assignment)
 - [The checked and unchecked operators](~/_csharpstandard/standard/expressions.md#12820-the-checked-and-unchecked-operators)
 - [Numeric promotions](~/_csharpstandard/standard/expressions.md#1247-numeric-promotions)
-- [User defined compound assignment](~/_csharplang/proposals/user-defined-compound-assignment.md)
+- [User defined compound assignment](~/_csharplang/proposals/csharp-14.0/user-defined-compound-assignment.md)
 
 ## See also
 

docs/csharp/language-reference/operators/assignment-operator.md

@@ -81,7 +81,7 @@ If a user-defined type overloads a binary operator `op`, the `op=` operator, if
 
 ## C# language specification
 
-For more information, see the [Assignment operators](~/_csharpstandard/standard/expressions.md#1221-assignment-operators) section of the [C# language specification](~/_csharpstandard/standard/README.md) and the [User defined compound assignment](~/_csharplang/proposals/user-defined-compound-assignment.md) feature specification.
+For more information, see the [Assignment operators](~/_csharpstandard/standard/expressions.md#1221-assignment-operators) section of the [C# language specification](~/_csharpstandard/standard/README.md) and the [User defined compound assignment](~/_csharplang/proposals/csharp-14.0/user-defined-compound-assignment.md) feature specification.
 
 ## See also
 

docs/csharp/language-reference/operators/bitwise-and-shift-operators.md

@@ -201,7 +201,7 @@ For more information, see the following sections of the [C# language specificati
 - [Numeric promotions](~/_csharpstandard/standard/expressions.md#1247-numeric-promotions)
 - [C# 11 - Relaxed shift requirements](~/_csharplang/proposals/csharp-11.0/relaxing_shift_operator_requirements.md)
 - [C# 11 - Logical right-shift operator](~/_csharplang/proposals/csharp-11.0/unsigned-right-shift-operator.md)
-- [User defined compound assignment](~/_csharplang/proposals/user-defined-compound-assignment.md)
+- [User defined compound assignment](~/_csharplang/proposals/csharp-14.0/user-defined-compound-assignment.md)
 
 ## See also
 

docs/csharp/language-reference/operators/boolean-logical-operators.md

@@ -194,7 +194,7 @@ For more information, see the following sections of the [C# language specificati
 - [Logical operators](~/_csharpstandard/standard/expressions.md#1213-logical-operators)
 - [Conditional logical operators](~/_csharpstandard/standard/expressions.md#1214-conditional-logical-operators)
 - [Compound assignment](~/_csharpstandard/standard/expressions.md#12214-compound-assignment)
-- [User defined compound assignment](~/_csharplang/proposals/user-defined-compound-assignment.md)
+- [User defined compound assignment](~/_csharplang/proposals/csharp-14.0/user-defined-compound-assignment.md)
 
 ## See also
 

docs/csharp/language-reference/operators/subtraction-operator.md

@@ -69,7 +69,7 @@ A user-defined type can [overload](operator-overloading.md) the `-` operator. Wh
 
 ## C# language specification
 
-For more information, see the [Unary minus operator](~/_csharpstandard/standard/expressions.md#1293-unary-minus-operator) and [Subtraction operator](~/_csharpstandard/standard/expressions.md#12106-subtraction-operator) sections of the [C# language specification](~/_csharpstandard/standard/README.md). For more information on overloading the compound assignment operators in C# 14 and later, see the [user defined compound assignment](~/_csharplang/proposals/user-defined-compound-assignment.md) feature specification.
+For more information, see the [Unary minus operator](~/_csharpstandard/standard/expressions.md#1293-unary-minus-operator) and [Subtraction operator](~/_csharpstandard/standard/expressions.md#12106-subtraction-operator) sections of the [C# language specification](~/_csharpstandard/standard/README.md). For more information on overloading the compound assignment operators in C# 14 and later, see the [user defined compound assignment](~/_csharplang/proposals/csharp-14.0/user-defined-compound-assignment.md) feature specification.
 
 ## See also
 

docs/csharp/programming-guide/classes-and-structs/partial-classes-and-methods.md

@@ -149,7 +149,7 @@ partial void OnNameChanged()
 
 ## C# Language Specification
 
-For more information, see [Partial types](~/_csharpstandard/standard/classes.md#1527-partial-type-declarations) and [Partial methods](~/_csharpstandard/standard/classes.md#1569-partial-methods) in the [C# Language Specification](~/_csharpstandard/standard/README.md). The language specification is the definitive source for C# syntax and usage. The new features for partial members are defined in the feature specifications for [extending partial methods](~/_csharplang/proposals/csharp-9.0/extending-partial-methods.md), [partial properties and indexers](~/_csharplang/proposals/csharp-13.0/partial-properties.md), and [partial events and constructors](~/_csharplang/proposals/partial-events-and-constructors.md).
+For more information, see [Partial types](~/_csharpstandard/standard/classes.md#1527-partial-type-declarations) and [Partial methods](~/_csharpstandard/standard/classes.md#1569-partial-methods) in the [C# Language Specification](~/_csharpstandard/standard/README.md). The language specification is the definitive source for C# syntax and usage. The new features for partial members are defined in the feature specifications for [extending partial methods](~/_csharplang/proposals/csharp-9.0/extending-partial-methods.md), [partial properties and indexers](~/_csharplang/proposals/csharp-13.0/partial-properties.md), and [partial events and constructors](~/_csharplang/proposals/csharp-14.0/partial-events-and-constructors.md).
 
 ## See also