2.2.11 (stable): * Fix comma operator in libsigc++ lambda expressions. Andris Pavenis) Bug #342911 * Added SIGC_FUNCTORS_DEDUCE_RESULT_TYPE_WITH_DECLTYPE. This allows most uses of libsigc++'s lambda expressions to be replaced by standard C++11 lambda expressions. (Kjell Ahlstedt) Bug #672555. Thanks to Chow Loong Jin, who posted similar code on libsigc-list. * Use std::size_t and std::ptrdiff_t instead (Kjell Ahlstedt) * Fix 'make check' with gcc 4.7. (Kjell Ahlstedt) * Enable test_lambda in 'make check'. (Kjell Ahlstedt) Bug #669128.