Blazor RC1 updates (#19878)

Author: guardrex

aspnetcore/blazor/forms-validation.md

@@ -262,7 +262,7 @@ In the following example:
 
 ## Display name support
 
-*This section applies to .NET 5 Release Candidate 1 (RC1) or later, which will be released in mid-September.*
+*This section applies to ASP.NET Core in .NET 5 Release Candidate 1 (RC1) or later.*
 
 The following built-in components support display names with the `DisplayName` parameter:
 

aspnetcore/blazor/fundamentals/routing.md

@@ -181,7 +181,7 @@ For more information, see <xref:fundamentals/routing>.
 
 ::: moniker range=">= aspnetcore-5.0"
 
-*This section applies to .NET 5 Release Candidate 1 (RC1) or later, which will be released in mid-September.*
+*This section applies to ASP.NET Core in .NET 5 Release Candidate 1 (RC1) or later.*
 
 Catch-all route parameters, which capture paths across multiple folder boundaries, are supported in components. The catch-all route parameter must be:
 
@@ -206,7 +206,7 @@ Slashes and segments of the captured path are decoded. For a route template of `
 
 ::: moniker range="< aspnetcore-5.0"
 
-Catch-all route parameters will be supported in .NET 5 Release Candidate 1 (RC1) or later, which will be released in mid-September.*
+Catch-all route parameters are supported in ASP.NET Core in .NET 5 Release Candidate 1 (RC1) or later.*
 
 ::: moniker-end
 

aspnetcore/blazor/webassembly-lazy-load-assemblies.md

@@ -26,21 +26,10 @@ Mark assemblies for lazy loading in the app's project file (`.csproj`) using the
 
 ```xml
 <ItemGroup>
-  <BlazorWebAssemblyLazyLoad Include="GrantImaharaRobotControls" />
+  <BlazorWebAssemblyLazyLoad Include="GrantImaharaRobotControls.dll" />
 </ItemGroup>
 ```
 
-Only assemblies that are used by the app can be lazily loaded. The linker strips unused assemblies from published output.
-
-> [!NOTE]
-> In .NET 5 Release Candidate 1 (RC1) or later, which will be released in mid-September, the assembly name will require the `.dll` extension:
->
-> ```xml
-> <ItemGroup>
->  <BlazorWebAssemblyLazyLoad Include="GrantImaharaRobotControls.dll" />
-> </ItemGroup>
-> ```
-
 ## `Router` component
 
 Blazor's `Router` component designates which assemblies Blazor searches for routable components. The `Router` component is also responsible for rendering the component for the route where the user navigates. The `Router` component supports an `OnNavigateAsync` feature that can be used in conjunction with lazy loading.