logging.SMTPHandler now supports authentication credentials through (username, password) tuple as the last argument of the constructor.

logging.SocketHandler.makeSocket has an optional timeout argument.

Added logging.WatchedFileHandler to better support external log file rotation. Useful only in Unix/Linux environments.

BaseException.message has been deprecated (see PEP 352 for the rationale).

The popen2 module and os.popen* are now deprecated in favor of the subprocess module.