Google is replacing Gmail video chats with Google Hangouts, the video service provided in Google+.
The original video chat service provided in Gmail was peer-to-peer, but the upgrade will swap it to Google's network, improving video quality and allowing Gmail users with Google+ to video chat in groups up to nine people.
Other benefits of having Google Hangouts integrated into Gmail mean that users will now be able to watch YouTube videos together and collaborate via the share screen option.
Chat in Gmail will also now no longer be limited to desktop users. Those on smartphones and tablets will be able to video chat via Gmail with others as well.
According to Google's official Gmail blog, changes for Google Hangouts will be rolling out today and continuing on into the next few weeks.