An update was released to the Hangouts Chrome app that adds an updated for notification support and a new phone tab. Google now allows you to place Hangouts calls and send SMS messages to your Google Voice contacts straight from the Chrome app.
They’re also improving notifications in Chrome, fixing a few zoom level problems, and adding a minimize option to the extension, even when it’s not on top of your browser.
Mayur Kamat, Google’s Voice and Hangouts product manager explains:
Reload your Hangouts Chrome App – you can now see the phone tab (like in Gmail and mobile apps) so you quickly call your phone contacts, add credit, view calling rates and more. If you have a Google Voice number, you can also send SMS to your contacts directly from the phone tab.
To get this update you just have to restart the Chrome app if you haven’t already done it.