Google software engineer Eduardo Fernandez announced the new experience on his Google+ page, revealing the company had been using the new version for a while now.
He added: “It’s early days, but we hope you like it as much as we do.”
The new experience will offer some key changes, including calls that start faster and remain sharp, and a higher quality video.
It will also ensure a more streamlined and alluring full-screen interface, and will give users a simple way to invite friends and family to calls.
The update will initially be rolled out to a small group, and will expand globally over the next few days.
However, if users find they do not like the new version, they are able to revert back to the original by visiting http://g.co/hangouts or clicking the menu at the top right and selecting “Original version.”
Last week Google launched Who’s Down, a new app to help young people arrange their next social hangout.
Find out more about the new social app here.