Facebook has been experimenting with video messaging for a short while now. Today, Facebook released version 5.4 of their mobile app for iOS to support it. There has been no official announcement yet from Facebook.
According to the update, Facebook users can now share their moments with voice messages and video recordings right from the app:
Send voice messages when you have more to say
Record and share videos right from the app
The update also brings improvements to the Facebook Nearby tab making it easier for Facebook users to connect with and share businesses in their area.