Add 11.0 release notes

Author: guardrex

aspnetcore/release-notes/aspnetcore-11.0.md

@@ -0,0 +1,72 @@
+---
+title: What's new in ASP.NET Core in .NET 11
+author: wadepickett
+description: Learn about the new features in ASP.NET Core in .NET 11.
+ms.author: wpickett
+ms.custom: mvc
+ms.date: 12/04/2025
+uid: aspnetcore-11
+---
+# What's new in ASP.NET Core in .NET 11
+
+<!-- NOTE: Add the following to toc.yml when the 
+           breaking changes article is put up ...
+           
+- name: Breaking changes
+  href: /dotnet/core/compatibility/10.0?toc=/aspnet/core/toc.json&bc=/aspnet/core/breadcrumb/toc.json#aspnet-core>
+
+-->
+
+This article highlights the most significant changes in ASP.NET Core in .NET 11 with links to relevant documentation.
+
+This article will be updated as new preview releases are made available.
+
+<!-- HOLD - The 11.0 article hasn't been created yet ...
+
+            https://learn.microsoft.com/dotnet/core/compatibility/11.0#aspnet-core
+
+For breaking changes, see [Breaking changes in .NET](/dotnet/core/compatibility/11.0#aspnet-core).
+
+-->
+
+## Blazor
+
+This section describes new features for Blazor.
+
+[!INCLUDE[](~/release-notes/aspnetcore-11/includes/blazor.md)]
+
+## Blazor Hybrid
+
+This section describes new features for Blazor Hybrid.
+
+[!INCLUDE[](~/release-notes/aspnetcore-11/includes/blazor-hybrid.md)]
+
+## SignalR
+
+This section describes new features for SignalR.
+
+## Minimal APIs
+
+This section describes new features for minimal APIs.
+
+## OpenAPI
+
+This section describes new features for OpenAPI.
+
+## Authentication and authorization
+
+This section describes new features for authentication and authorization.
+
+## Miscellaneous
+
+This section describes miscellaneous new features in .NET 11.
+
+<!-- HOLD - The breaking changes article for 11.0 hasn't been created yet ...
+
+            https://learn.microsoft.com/dotnet/core/compatibility/breaking-changes
+
+## Breaking changes
+
+Use the articles in [Breaking changes in .NET](/dotnet/core/compatibility/breaking-changes) to find breaking changes that might apply when upgrading an app to a newer version of .NET.
+
+-->

aspnetcore/release-notes/aspnetcore-11/includes/blazor-hybrid.md

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+*Release notes appear in this section as preview features become available.*

aspnetcore/release-notes/aspnetcore-11/includes/blazor.md

@@ -0,0 +1 @@
+*Release notes appear in this section as preview features become available.*

aspnetcore/toc.yml

@@ -7,6 +7,10 @@ items:
     uid: get-started
   - name: What's new
     items:
+      - name: ASP.NET Core 11
+        items:
+          - name: What's new in 11
+            uid: aspnetcore-11
       - name: ASP.NET Core 10
         items:
           - name: What's new in 10