SignalR 0.4 Released!

I’m happy to announce that the long awaited 0.4 release of SignalR is now available on NuGet! The sample package has also been updated to account for some of the API changes.

This release brings a huge amount of changes including new features, massive performance improvements and some API breaking changes (for the better of course).

Here’s an overview of the changes in this release:

  • Increased throughput by almost 100% from 0.3.5
  • Substantially reduced memory use
  • Decoupled from ASP.NET, can now host on other servers, e.g. OWIN, HttpListener, etc.
  • Standardized on JSON.NET for JSON serialization and deserialization
  • Removal of non-async APIs
  • Removal of statics to allow for better isolation (like testing, multi-host, etc.)
  • Support for four transports:
    • WebSockets on ASP.NET with Windows 8
    • Server Sent Events (EventSource)
    • Forever Frame
    • Ajax Long Polling
  • Improved transport negotiation
  • Support for custom querystring values in connection URLs
  • Support for dynamic parameters to hub methods
  • Improved disconnect logic and notification
  • Client support for .NET, Silverlight and Windows Phone 7
  • Improved tracing
  • Tools and configuration for load testing
  • Loads and loads of bug fixes

Plans for future releases

Our upcoming releases will focus on supporting scale out for web farms and cloud hosting scenarios, along with further features and improvements. While the list is still being decided, the following features are being considered:

  • Scale out providers for SQL Server and Service Bus
  • Cross domain connections
  • Hub JS proxy file generation at design/build time for improved JS IntelliSense & bundling support
  • .NET client side proxy generation
  • Much improved tracing
  • Web Forms control for server originated post-back (for use in UpdatePanels)

Giving Feedback & Getting Assistance

Please jump into the SignalR room on JabbR if you want to discuss any feature or issue or just chat with the SignalR team and other SignalR users. If you find a bug or have a feature suggestion, please log an issue on github.

Show Your Support

We love hearing of people having fun with SignalR. To show your support and keep us in the loop of your successes or otherwise, you can follow SignalR on twitter, and watch the SignalR repository on github.

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