Android Marshmallow introduced `` Now On Tap '' , which is an API owned by Google .
First unveiled in May 2015 at Google I/O under the codename `` Android 'M ' '' , it was officially released in October 2015.Marshmallow primarily focuses on improving the overall user experience of Lollipop , introducing a new permissions architecture , new APIs for contextual assistants ( a feature notably leveraged by `` Google Now On Tap '' —a new capability of the Google Search app ) , a new power management system that reduces background activity when a device is not being physically handled , native support for fingerprint recognition and USB Type-C connectors , the ability to migrate data and applications to a microSD card and use it as primary storage , as well as other internal changes .
Android Marshmallow