Snapchat adds Group Video Chat and Mentions1
To make a group video or audio chat, you can create a new Group Chat or open an existing one. You can then tap the video icon or the phone icon to start a video chat or an audio chat, respectively. All members of the group will receive a notification and can respond to join the video or audio chat group.
Snapchat also announced today that it will start supporting Mentions for its Stories feature. Whenever a Snapchat user posts the name of another member on a Story, that person will receive a notification that they were mentioned. The Snapchat user composing a Story only needs to write the other member's Snapchat handle, and suggestions will appear on the screen. This should make it a (ahem) snap to tag the right person.
The new features will be available to Snapchat members as soon as this week, although it could take a few weeks for the global rollout to be complete.