New in Dock: calmer message bubbles and a message box that shows formatting
Reactions and threads now live inside the message bubble, and the message box shows bold, lists and code as you type.

What's new
A message box that shows what you mean
Type bold, _italic_, a - list or a > quote and the message box shows it formatted right away. Cmd/Ctrl+B and Cmd/Ctrl+I work, brackets and quotes close themselves, and lists continue when you press Shift+Enter. What gets sent is unchanged, so everyone sees the same message.

Improved
Everything about a message, in its bubble
Reactions and the thread summary used to hang under a message. They now sit inside the bubble, in the same colour, so a busy chat reads as one clean column. With one or two people, a reaction shows their names; with more, a count.
The thread preview shows the latest reply and a Reply button that opens the thread with the cursor ready.