+** New command `async-shell-command', bound globally to `M-&'.
+This executes the command asynchronously, similar to calling `M-!' and
+manually adding an ampersand to the end of the command. With `M-&',
+you don't need the ampersand. The output appears in the buffer
+`*Async Shell Command*'.
+
+** When running in a new enough xterm (newer than version 242), Emacs
+asks xterm what the background color is and it sets up faces
+accordingly for a dark background if needed (the current default is to
+consider the background light).
+