First and foremost, the update adds a new one-tap location-sharing feature with smart suggestions. As noted by Google:
When you’re trying to meet up with friends in real life and someone asks, “Where are you?”, Hangouts can now understand what you need and offer to help. You’ll see a one-tap option to share your location right in the conversation, without you needing to hunt around in a map, drop a pin and send your position.
The latest update to Hangouts also adds support for posting status messages and seeing text messages and voicemails from your Google Voice account.
The update also enables you to find friends and family on Hangouts by phone number. It also lets you confirm your phone number so that your friends and family can more easily find you on the service as well.
The new version of Hangouts also includes new sticker packs, video call improvements, and various bug fixes.
Hangouts is available on the App Store for free. It’s compatible with iPhone, iPod touch, and iPad running iOS 7.0 or later.
The app was updated with full resolution support for iPhone 6 and iPhone 6 Plus in late October.
See also: Google further takes on Apple’s AirPlay with Google Cast for audio, Google’s Nest announces new integrations with more ‘smart home’ devices and services, and Google+ updated with iOS 8 share extension, polling feature and iPhone 6 support.