Chat Buttons
This release has introduced clickable buttons when you open the chat GUI.

When you click on the "Community" button, for example, it will switch your active channel to Community chat, and highlight the button to remind you that you're in that channel. The same thing goes for the other channels.
If you are a supporter, the "Supporter" button shows up and will bring you to that chat. Quartz supporters don't count. Sorry :(
If you are a moderator+, the "Moderator" button shows up and will bring you there. Nobody else gets that privilege.
When you start a private message with someone, it will create a pop-up in the bottom right corner displaying their name and will go away when you click one of the buttons. This was created because I can never remember that I'm in a PM with someone, and end up sending my message to them.

No more typing "wrong chat" to anyone ever again :)