How to quick reply with Google Hangouts on iOS 10?

On iOS 9 I would utilize the quick reply functionality to reply to Google Hangout messages. However, since upgrading to iOS 10 I am no longer able to use quick reply as a swipe left on a Hangout notification only gives the option to clear. Is there an iOS 10 setting that I need to enable for Hangouts to be able to quick reply? Or is this something that Google needs to change with Hangouts to accommodate iOS 10's new notification APIs?