AspNetCore.Docs/aspnetcore/aspnetcore-1.1.md

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What's new in ASP.NET Core 1.1 | Microsoft Docs	rick-anderson	What's new in ASP.NET Core 1.1	ASP.NET Core, bower	riande	wpickett	02/14/2017	article	062f8353-d1bc-4e99-a821-c1d1bb162c47	aspnet	aspnet-core	aspnetcore-1.1

What's new in ASP.NET Core 1.1

ASP.NET Core 1.1 includes the following new features:

• URL Rewriting Middleware
• Response Caching Middleware
• View Components as Tag Helpers
• Middleware as MVC filters
• Cookie-based TempData provider
• Azure App Service logging provider
• Azure Key Vault configuration provider
• Azure and Redis Storage Data Protection Key Repositories
• WebListener Server for Windows
• WebSockets support

Choosing between versions 1.0 and 1.1 of ASP.NET Core

ASP.NET Core 1.1 has more features than 1.0. In general, we recommend you use the latest version.

WebSockets support

A new middleware component provides WebSockets support in ASP.NET Core 1.1. Install the Microsoft.AspNetCore.WebSockets package, and add code to the Configure method of the Startup class:

app.UseWebSockets();

Your project will then have access to a WebSockets property on the HttpContext object. You can write your own middleware for the pipeline to interpret and interact with the requests handed to your application by a websocket. You could add this middleware to your configured pipeline with code like the following:

app.Use(async (context, next) =>
{
  if (context.WebSockets.IsWebSocketRequest)
  {
    var webSocket = await context.WebSockets.AcceptWebSocketAsync();
    await DoSomethingCool(context, webSocket);
  }
  else
  {
    await next();
  }
});

The websocket object has SendAsync and ReceiveAsync methods. For samples, see the WebSockets repository.

Additional Information

• ASP.NET Core 1.1.0 Release Notes