glibmm: New API in glibmm 2.56
- Member Gio::Application::set_option_context_description (const Glib::ustring& description)
- Member Gio::Application::set_option_context_parameter_string (const Glib::ustring& parameter_string)
- Member Gio::Application::set_option_context_summary (const Glib::ustring& summary)
- Member Gio::DesktopAppInfo::get_locale_string (const Glib::ustring& key)
- Member Glib::ConvertError::EMBEDDED_NUL
- Member Glib::DateTime::create_from_iso8601 (const Glib::ustring& text, const TimeZone& default_tz)
- Member Glib::DateTime::format (const Glib::ustring& format_str) const