1.70.8
(fix): XML (TwiML) serialization drops characters outside the XML 1.0 Char production (e.g. \x01) from text and attribute values (previously replaced with U+FFFD).
(fix): XML (TwiML) serialization drops characters outside the XML 1.0 Char production (e.g. \x01) from text and attribute values (previously replaced with U+FFFD).