diff --git a/yahtml.el b/yahtml.el
index cd371ea..d8f9c3a 100644
--- a/yahtml.el
+++ b/yahtml.el
@@ -1,5 +1,5 @@
 ;;; yahtml.el --- Yet Another HTML mode -*- coding: sjis -*-
-;;; (c) 1994-2019 by HIROSE Yuuji [yuuji(@)yatex.org]
+;;; (c) 1994-2022 by HIROSE Yuuji [yuuji(@)yatex.org]
 ;;; $Id$
 
 (defconst yahtml-revision-number "1.80.1"
diff --git a/yatexadd.el b/yatexadd.el
index 3354478..c783a24 100644
--- a/yatexadd.el
+++ b/yatexadd.el
@@ -1,6 +1,6 @@
 ;;; yatexadd.el --- YaTeX add-in functions -*- coding: sjis -*-
-;;; (c)1991-2019 by HIROSE Yuuji.[yuuji@yatex.org]
-;;; Last modified Thu Dec  1 18:33:08 2022 on firestorm
+;;; (c)1991-2022 by HIROSE Yuuji.[yuuji@yatex.org]
+;;; Last modified Fri Dec  2 08:40:27 2022 on firestorm
 ;;; $Id$
 
 ;;; Code:
@@ -1893,7 +1893,9 @@
 
 (defvar YaTeX:documentclasses-default
   '(("article") ("jarticle") ("report") ("jreport") ("book") ("jbook")
-    ("jsarticle") ("jsbook")
+    ("ltjsarticle") ("ltjsreport") ("ltjsbook")
+    ("ltjarticle") ("ltjreport") ("ltjbook")
+    ("jsarticle") ("jsreport") ("jsbook")
     ("j-article") ("j-report") ("j-book")
     ("letter") ("slides") ("ltxdoc") ("ltxguide") ("ltnews") ("proc"))
   "Default documentclass alist")
diff --git a/yatexlib.el b/yatexlib.el
index 97047b4..a420ad9 100644
--- a/yatexlib.el
+++ b/yatexlib.el
@@ -1,7 +1,7 @@
 ;;; yatexlib.el --- YaTeX and yahtml common libraries -*- coding: sjis -*-
 ;;; 
-;;; (c)1994-2019 by HIROSE Yuuji.[yuuji@yatex.org]
-;;; Last modified Fri Sep 23 06:43:32 2022 on firestorm
+;;; (c)1994-2022 by HIROSE Yuuji.[yuuji@yatex.org]
+;;; Last modified Fri Dec  2 08:41:16 2022 on firestorm
 ;;; $Id$
 
 ;;; Code:
diff --git a/yatexpkg.el b/yatexpkg.el
index 4d2385e..6130aad 100644
--- a/yatexpkg.el
+++ b/yatexpkg.el
@@ -1,7 +1,7 @@
 ;;; yatexpkg.el --- YaTeX package manager -*- coding: sjis -*-
 ;;; 
-;;; (c)2003-2019 by HIROSE, Yuuji [yuuji@yatex.org]
-;;; Last modified Thu Dec  1 18:45:19 2022 on firestorm
+;;; (c)2003-2022 by HIROSE, Yuuji [yuuji@yatex.org]
+;;; Last modified Fri Dec  2 08:22:41 2022 on firestorm
 ;;; $Id$
 
 ;;; Code:
diff --git a/yatexprc.el b/yatexprc.el
index 97087d7..3fe7c29 100644
--- a/yatexprc.el
+++ b/yatexprc.el
@@ -1,7 +1,7 @@
 ;;; yatexprc.el --- YaTeX process handler -*- coding: sjis -*-
 ;;; 
 ;;; (c)1993-2022 by HIROSE Yuuji.[yuuji@yatex.org]
-;;; Last modified Thu Sep 29 09:56:02 2022 on firestorm
+;;; Last modified Thu Dec  1 19:13:20 2022 on firestorm
 ;;; $Id$
 
 ;;; Code:
@@ -184,7 +184,8 @@
 		(ppprop (get 'YaTeX-typeset-process 'ppcmd))
 		(ppcmd (cdr (assq proc ppprop)))
 		(bcprop (get 'YaTeX-typeset-process 'bibcmd))
-		(bibcmd (cdr (assq proc bcprop))))
+		(bibcmd (cdr (assq proc bcprop)))
+		(useluatex (string-match "lua.*tex" thiscmd)))
 	   (put 'YaTeX-typeset-process 'ppcmd ;erase ppcmd
 		(delq (assq proc ppprop) ppprop))
 	   (put 'YaTeX-typeset-process 'bibcmd ;erase bibcmd
@@ -286,8 +287,14 @@
 		     ;; If ppcmd is set and it is a function symbol,
 		     ;; call it whenever command succeeded or not
 		     (funcall ppcmd))
-		    ((and ppcmd (string-match "finish" mes))
-		     (insert (format "=======> Success! Calling %s\n" ppcmd))
+		    ((and ppcmd (string-match "finish" mes)
+			  ;; It is bad way to detect the necessity of
+			  ;; pdf-conversion by seeing typesetter name because
+			  ;; new typesetter other than lua(la)tex might come.
+			  ;; More reasonable way is to determine by the
+			  ;; existence of PDF file.
+			  (not useluatex))
+		     (insert (format "=======>  Success! Calling %s\n" ppcmd))
 		     (setq mode-name	; set process name
 			   (concat
 			    mode-name "+"