title: "OpenID2 for Google accounts is going away on April 20, 2015". Do I need to worry?
body: <p>I am developing a website by using ASP.NET and I use Oauth feature to register users to my website. I downloaded DontNetOpenOauth from nuget packages for the Visual studio 2013.
  Up to now I implemented facebook authentication. I hope to use google authentication as well. But when I go to there website it says that. </p>
  
  <p><strong>"OpenID2 for Google accounts is going away on April 20, 2015."</strong></p>
  
  <p>When I go to detail page of this warning it says</p>
  
  <p><em>"Some applications and websites use OpenID 2.0 for authentication when you're signing in, and to access data that you've given them permission to access. Starting April 20, 2015, OpenID 2.0 will no longer work for Google Accounts.
  If you've seen a warning that's brought you to this page, it means that you're using an application or website with OpenID 2.0 and may be affected by this change. For more information, we recommend you visit that application's help center, or contact its support team."</em></p>
  
  <p>Here is the link.</p>
  
  <p><a href="https://support.google.com/accounts/answer/6135882" rel="noreferrer">https://support.google.com/accounts/answer/6135882</a></p>
  
  <p>Honest with you guys I am not familiar with this oauth authentication process. 
  What is this warning message? Do I need to worry about this? Is there any changes should I need to do or any packages should I need to install?</p>