title: What was the latest version of google-oauth2 updated?
body: <p>We are using the following url for Google OAuth2 v3 now.</p>
  
  <ul>
  <li><a href="https://accounts.google.com/o/oauth2/auth" rel="nofollow noreferrer">https://accounts.google.com/o/oauth2/auth</a></li>
  <li><a href="https://www.googleapis.com/oauth2/v3/token" rel="nofollow noreferrer">https://www.googleapis.com/oauth2/v3/token</a></li>
  </ul>
  
  <p>But, I confirmed version-up in the latest document(<a href="https://developers.google.com/identity/protocols/OAuth2WebServer" rel="nofollow noreferrer">https://developers.google.com/identity/protocols/OAuth2WebServer</a>).</p>
  
  <ul>
  <li><a href="https://accounts.google.com/o/oauth2/" rel="nofollow noreferrer">https://accounts.google.com/o/oauth2/</a><strong>v2</strong>/auth</li>
  <li><a href="https://www.googleapis.com/oauth2/" rel="nofollow noreferrer">https://www.googleapis.com/oauth2/</a><strong>v4</strong>/token</li>
  </ul>
  
  <p>What was changed?
  If possible, we want to update it.</p>