2.9.1 (unstable): * slot: Allow sigc::slot syntax, like std::function, deprecating the sigc::slot syntax. (Murray Cumming, Kjell Ahlstedt) Bug #763393 * signal: Allow sigc::signal syntax, like std::function, deprecating the sigc::signal syntax. (Murray Cumming, Kjell Ahlstedt) Bug #763393 2.8.0 (stable):