2.56.1 (stable): Glib: * ustring: Fix wchar conversion on macOS with libc++ (Clemens Lang) Bug #795338 * Avoid compiler warnings from function pointer conversions (Kjell Ahlstedt) Issue libsigcplusplus#1 (sharkcz) (Kjell Ahlstedt) Issue libsigcplusplus#8 (db0451) Gio: * SocketClient: Take copy in RefPtrs for signal args (Daniel Boles) Issue #28 (Jens Mühlenhoff) Build: * Require glib-2.0 >= 2.55.1 (Kjell Ahlstedt) Issue #29 (Mart Raudsepp) * Replace the Visual Studio project files with MSVC NMake project files (Chun-wei Fan) Merge request !5