March 21, 2017
Google has made the Google Drive plug-in for Microsoft Office more secure and easier to use. In particular, the plug-in authentication flow has been updated as part of Google's effort to modernize OAuth interactions in native applications. The new authentication flow requires users to authenticate via the default browser on their system, and not through embedded browsers known as "web-views".
Google has begun automatically updating all plug-ins; however, users who have previously disabled Google Update or installed the Google Drive plug-in in an environment that does not allow for automatic updates will need to download and deploy the latest plug-in version (1.7.17.0) before April 20, 2017.