Official Release Notes

• Now you can react with any emoji during a Signal call. Smile even if your camera is off, share a heart if you love what you're hearing, or vote for sushi instead of pizza without saying a word. And you'll even see an animation of everyone's emojional outburst if enough people in the call react with the same emoji all at once.

Other Changes

• Improvements to swipe-to-reply behavior [src]
• The group call members list has been redesigned [src]

Upcoming Features

• More work completed for the upcoming cloud backups feature[src]