+* wfMsg() was removed (deprecated since 1.18).
+* wfMsgForContent() was removed (deprecated since 1.18).
+* wfMsgReal() was removed (deprecated since 1.18).
+* wfMsgGetKey() was removed (deprecated since 1.18).
+* wfMsgHtml() was removed (deprecated since 1.18).
+* wfMsgWikiHtml() was removed (deprecated since 1.18).
+* wfMsgExt() was removed (deprecated since 1.18).