Mac Users: Signal is Moving!
Signal is moving to System Preferences. It will now run as a background application without any dock or menu bar icon, so your Mac’s UI stays nice and clean. It will also start automatically at login if left running when the system shuts down, so in most cases you can set it once and forget about it.
If you already have Signal installed the move will be handled for you via software update. After installing and relaunching you’ll be presented with an upgrade utility that will install the new preference pane and remove the old version from /Applications.