This change will impact how you set up Signal on your desktop computer. Previously, after linking your desktop to your phone, you would be presented with basically an empty window.

This change will allow you to, optionally, synchronize your message history from your phone to your desktop, filling it with your previous messages, making it much easier to pick up where you left off with your conversations.

Pictures and videos that were sent will also synchronize, as long as they are from the past month and a half.