Tuples interfaces generics

.openpublishing.redirection.csharp.json

@@ -1,5 +1,9 @@
 {
   "redirections": [
+    {
+      "source_path_from_root": "/docs/csharp/fundamentals/types/anonymous-types.md",
+      "redirect_url": "/dotnet/csharp/fundamentals/types/tuples"
+    },
     {
       "source_path_from_root": "/docs/csharp/fundamentals/types/namespaces.md",
       "redirect_url": "/dotnet/csharp/fundamentals/program-structure/namespaces"
@@ -3067,7 +3071,7 @@
         },
         {
             "source_path_from_root": "/docs/csharp/programming-guide/classes-and-structs/anonymous-types.md",
-            "redirect_url": "/dotnet/csharp/fundamentals/types/anonymous-types"
+            "redirect_url": "/dotnet/csharp/fundamentals/types/tuples"
         },
         {
             "source_path_from_root": "/docs/csharp/programming-guide/classes-and-structs/classes.md",

docs/core/diagnostics/diagnosticsource-diagnosticlistener.md

@@ -66,7 +66,7 @@ A typical call site will look like:
 :::code language="csharp" source="snippets/diagnosticsource/csharp/Program.cs" id="Snippet3":::
 
 Every event has a `string` name (for example, `RequestStart`), and exactly one `object` as a payload.
-If you need to send more than one item, you can do so by creating an `object` with properties to represent all its information. C#'s [anonymous type](../../csharp/fundamentals/types/anonymous-types.md)
+If you need to send more than one item, you can do so by creating an `object` with properties to represent all its information. C#'s [anonymous type](../../csharp/fundamentals/types/tuples.md)
 feature is typically used to create a type to pass 'on the fly', and makes this scheme very
 convenient. At the instrumentation site, you must guard the call to `Write()` with an `IsEnabled()` check on
 the same event name. Without this check, even when the instrumentation is inactive, the rules

docs/csharp/fundamentals/object-oriented/index.md

@@ -86,7 +86,7 @@ You can instantiate and initialize class or struct objects, and collections of o
 
 ## Anonymous Types
 
-In situations where it isn't convenient or necessary to create a named class you use anonymous types. Named data members define anonymous types. For more information, see [Anonymous types](../types/anonymous-types.md).
+In situations where it isn't convenient or necessary to create a named class, you can use anonymous types or [tuples](../types/tuples.md). Named data members define anonymous types. Tuples are the preferred choice for new code because they offer better performance and deconstruction support. For more information, see [Tuples and deconstruction](../types/tuples.md).
 
 ## Extension Members