===
==============================================================================
+------------------------------------------------------------------------------
+--- Functionality changes from Asterisk 13.36.0 to Asterisk 13.37.0 ----------
+------------------------------------------------------------------------------
+
+chan_pjsip
+------------------
+ * The PJSIP_SEND_SESSION_REFRESH dialplan function now issues a warning, and
+ returns unsuccessful if it's used on a channel prior to answering.
+
------------------------------------------------------------------------------
--- Functionality changes from Asterisk 13.34.0 to Asterisk 13.35.0 ----------
------------------------------------------------------------------------------