Over the past few years, we’ve been updating our APIs with new versions across Drive and Calendar, as well as those used for managing Google Apps for Work domains. These new APIs offered developers several improvements over older versions of the API. With each of these introductions, we also announced the deprecation of a set of corresponding APIs.

The deprecation period for these APIs is coming to an end. As of April 20, 2015, we will discontinue these deprecated APIs. Calls to these APIs and any features in your application that depend on them will not work after April 20th.

Discontinued API	Replacement API
Documents List API	Drive API
Admin Audit	Admin SDK Reports API
Google Apps Profiles	Admin SDK Directory API
Provisioning	Admin SDK Directory API
Reporting	Admin SDK Reports API
Email Migration API v1	Email Migration API v2
Reporting Visualization	No replacement available

When updating, we also recommend that you use the opportunity to switch to OAuth2 for authorization. Older protocols, such as ClientLogin, AuthSub, and OpenID 2.0, have also been deprecated and are scheduled to shut down.

For help on migration, consult the documentation for the APIs or ask questions about the Drive API or Admin SDK on StackOverflow.

Posted by Steven Bazyl, Developer Advocate