New in v4.4 (Testflight Beta):
- disappearing messages (with mutual agreement)!
- live messages – they update for all recipients as you type them.
- connection security code verification, for contacts and group members – protect from MITM attacks.
- send animated images and “stickers” (e.g., from GIF and PNG files and 3rd party keyboards)
There is another use case for disappearing messages: protection against domestic violence. If the violent partner checks the victim’s device, seeing messages might incite an attack.