XEP-0077 sec9: > As defined herein, the 'jabber:iq:register' namespace supports both the old > (HTTP-style) error codes and the extensible error classes and conditions > specified in XMPP Core. A compliant server or service implementation MUST > support both old-style and new-style error handling. A compliant client > implementation SHOULD support both. For mappings of HTTP-style errors to > XMPP-style conditions, refer to Error Condition Mappings [12].
XEP-0086 is deprecated. It doesn't make sense for an active spec to have a normative requirement on a deprecated one. Should this paragraph be removed? -- Glenn Maynard
