Per a vote of the XMPP Council, advanced status to Deprecated.
The 'timeout' attribute indicates how long this rule will stay in server after the latest message in this thread is exchanged. Server MUST NOT forget this rule before 'timeout' seconds after latest message in this thread is exchanged but MAY keep this rule longer than 'timeout' value specifies.
Client MUST NOT set this attribute, but wait for server's answer to know this value.
-If the client wants to keep this rule longer, it must send a new <session/> element to the server before this timeout expires.
+If the client wants to keep this rule longer, it must send a new <session/> element to the server before this timeout expires.
The 'thread' attribute specifies the ThreadID of the chat session (in the sense of &xep0201;) to which the preferences specified in this <session/> element apply.
@@ -450,7 +456,7 @@ ]]>A client may use a similar protocol to set the Modes for a particular chat session. A chat session is identified by its unique 'thread' attributes in <message> stanza (see &xep0155;).
+A client may use a similar protocol to set the Modes for a particular chat session. A chat session is identified by its unique 'thread' attributes in <message> stanza (see &xep0155;).
Otherwise: