latest update to the Google Drive iPad app. The latest update to the app enables you to open files in Drive and save them back to Drive even when you're using other apps to create and edit. The other productivity update allows you to move video files from Google Drive to your iPad's camera roll.
From a security standpoint, the latest update to Google Drive for iPad enables the use of Touch ID. You can use Touch ID to lock the Google Drive for iPad app.
Applications for Education
These features aren't game-changing updates, but they could be helpful from a workflow standpoint. Your students can now open and work with files that weren't originally created in Drive on their iPads.