New API in libxml++ 2.38

Member xmlpp::operator>> (std::istream& in, Parser& parser)
Member xmlpp::Parser::get_include_default_attributes () noexcept
Member xmlpp::Parser::get_parser_options (int& set_options, int& clear_options) noexcept
Member xmlpp::Parser::set_include_default_attributes (bool val=true) noexcept
Member xmlpp::Parser::set_parser_options (int set_options=0, int clear_options=0) noexcept
Class xmlpp::RelaxNGSchema
Class xmlpp::RelaxNGValidator
Class xmlpp::SchemaBase
Class xmlpp::SchemaValidatorBase
Class xmlpp::XsdSchema
Class xmlpp::XsdValidator