The Tango project will be deprecated on March 1st, 2018. Google is continuing AR development with ARCore, a new platform designed for building augmented reality apps for a broad range of devices without the requirement for specialized hardware.
Tango SDK for Unity Release Notes
June 2017: Ikariotikos
ANDROID_ACCESS_FINE_LOCATION_PERMISSION added to the Android manifest
to support future plugin capabilities around cloud area descriptions.
May 2017: Hopak
Added TangoImage and TangoCameraMetadata structs, which are new types
from TangoCore as of the G release.
ITangoVideoOverlayMultithreaded now uses TangoImage instead of
Updated minimum TangoCore version to 14747
Added a new Unity sample (MarkerDetection) to demonstrates the marker