diff -r 56c6d56d373f -r 233025cb30f5 libpurple/protocols/irc/parse.c
--- a/libpurple/protocols/irc/parse.c	Wed Mar 07 02:32:46 2018 +0000
+++ b/libpurple/protocols/irc/parse.c	Thu Mar 08 00:09:39 2018 -0600
@@ -115,6 +115,7 @@
 	{ "906", "*", 0, irc_msg_authfail },		/* SASL auth failed		*/
 	{ "907", "*", 0, irc_msg_authfail },		/* SASL auth failed		*/
 	{ "cap", "vv:", 3, irc_msg_cap },		/* SASL capable			*/
+	{ "authenticate", ":", 1, irc_msg_authenticate }, /* SASL authenticate		*/
 #endif
 	{ "invite", "n:", 2, irc_msg_invite },		/* Invited			*/
 	{ "join", ":", 1, irc_msg_join },		/* Joined a channel		*/
@@ -680,6 +681,13 @@
 	 */
 	purple_signal_emit(_irc_plugin, "irc-receiving-text", gc, &input);
 
+	if (purple_debug_is_verbose()) {
+		char *clean = purple_utf8_salvage(input);
+		clean = g_strstrip(clean);
+		purple_debug_misc("irc", ">> %s\n", clean);
+		g_free(clean);
+	}
+
 	if (!strncmp(input, "PING ", 5)) {
 		msg = irc_format(irc, "vv", "PONG", input + 5);
 		irc_send(irc, msg);