The latest update to Maps is the use of Waze traffic data to help users navigate their way around difficult traffic situations.
The Google LatLong / Maps blog tells us
Users of Google Maps for Mobile will now benefit from real time incident reports from Waze users. This means when Wazers report accidents, construction, road closures and more on Waze, the updates will also appear on the Google Maps app for Android and iOS in Argentina, Brazil, Chile, Colombia, Ecuador, France, Germany, Mexico, Panama, Peru, Switzerland, UK and the US
Waze users are not required to move over to Google Maps to get that functionality either as new features come to Waze itself