diff --git a/yahtml.el b/yahtml.el
index 9d67637..e55ba40 100644
--- a/yahtml.el
+++ b/yahtml.el
@@ -1,6 +1,6 @@
 ;;; -*- Emacs-Lisp -*-
-;;; (c) 1994-2011 by HIROSE Yuuji [yuuji(@)yatex.org]
-;;; Last modified Mon Jan  9 14:09:47 2012 on firestorm
+;;; (c) 1994-2012 by HIROSE Yuuji [yuuji(@)yatex.org]
+;;; Last modified Mon Jan  9 20:13:20 2012 on firestorm
 ;;; $Id$
 
 (defconst yahtml-revision-number "1.74.2"
diff --git a/yatex.el b/yatex.el
index a42626f..cec0da7 100644
--- a/yatex.el
+++ b/yatex.el
@@ -1,15 +1,15 @@
 ;;; -*- Emacs-Lisp -*-
 ;;; Yet Another tex-mode for emacs - //�쒹//
-;;; yatex.el rev. 1.74.6
-;;; (c)1991-2011 by HIROSE Yuuji.[yuuji@yatex.org]
-;;; Last modified Mon Jan  9 18:56:57 2012 on firestorm
+;;; yatex.el rev. 1.74.7
+;;; (c)1991-2012 by HIROSE Yuuji.[yuuji@yatex.org]
+;;; Last modified Mon Jan  9 20:12:52 2012 on firestorm
 ;;; $Id$
 ;;; The latest version of this software is always available at;
 ;;; http://www.yatex.org/
 
 (require 'comment)
 (require 'yatexlib)
-(defconst YaTeX-revision-number "1.74.6"
+(defconst YaTeX-revision-number "1.74.7"
   "Revision number of running yatex.el")
 
 ;---------- Local variables ----------
diff --git a/yatexhie.el b/yatexhie.el
index 5a0aa2c..4bd3e0a 100644
--- a/yatexhie.el
+++ b/yatexhie.el
@@ -1,8 +1,8 @@
 ;;; -*- Emacs-Lisp -*-
 ;;; YaTeX hierarchy browser.
 ;;; yatexhie.el
-;;; (c)1995 by HIROSE Yuuji [yuuji@yatex.org]
-;;; Last modified Fri Jun 27 12:09:49 2003 on firestorm
+;;; (c)1995-2012 by HIROSE Yuuji [yuuji@yatex.org]
+;;; Last modified Mon Jan  9 20:19:06 2012 on firestorm
 ;;; $Id$
 
 ;; ----- Customizable variables -----
diff --git a/yatexinf.el b/yatexinf.el
index 376b62a..4c51b50 100644
--- a/yatexinf.el
+++ b/yatexinf.el
@@ -1,7 +1,7 @@
 ;;; -*- Emacs-Lisp -*-
 ;;; YaTeX interfaces for Texinfo mode.
-;;; (c)1994,1998,2001 by HIROSE, Yuuji [yuuji@yatex.org]
-;;; Last modified Fri Jun 27 12:10:03 2003 on firestorm
+;;; (c)1994-2012 by HIROSE, Yuuji [yuuji@yatex.org]
+;;; Last modified Mon Jan  9 20:19:55 2012 on firestorm
 
 (require 'yatex)
 (or (boundp 'texinfo-mode-map)
diff --git a/yatexlib.el b/yatexlib.el
index fccd06c..65cfd8f 100644
--- a/yatexlib.el
+++ b/yatexlib.el
@@ -1,8 +1,8 @@
 ;;; -*- Emacs-Lisp -*-
 ;;; YaTeX and yahtml common libraries, general functions and definitions
 ;;; yatexlib.el
-;;; (c)1994-2009 by HIROSE Yuuji.[yuuji@yatex.org]
-;;; Last modified Thu Dec 15 13:37:26 2011 on firestorm
+;;; (c)1994-2012 by HIROSE Yuuji.[yuuji@yatex.org]
+;;; Last modified Mon Jan  9 20:20:09 2012 on firestorm
 ;;; $Id$
 
 ;; General variables
diff --git a/yatexmth.el b/yatexmth.el
index 6f6141d..4a341ba 100644
--- a/yatexmth.el
+++ b/yatexmth.el
@@ -1,8 +1,8 @@
 ;;; -*- Emacs-Lisp -*-
 ;;; YaTeX math-mode-specific functions.
 ;;; yatexmth.el
-;;; (c)1993-2010 by HIROSE Yuuji [yuuji@yatex.org]
-;;; Last modified Mon Jan  9 14:11:08 2012 on firestorm
+;;; (c)1993-2012 by HIROSE Yuuji [yuuji@yatex.org]
+;;; Last modified Mon Jan  9 20:14:02 2012 on firestorm
 ;;; $Id$
 
 ;;; [Customization guide]
diff --git a/yatexpkg.el b/yatexpkg.el
index bc3bca6..f2a70c7 100644
--- a/yatexpkg.el
+++ b/yatexpkg.el
@@ -1,8 +1,8 @@
 ;;; -*- Emacs-Lisp -*-
 ;;; YaTeX package manager
 ;;; yatexpkg.el
-;;; (c)2003-2010 by HIROSE, Yuuji [yuuji@yatex.org]
-;;; Last modified Mon Jan  9 14:10:34 2012 on firestorm
+;;; (c)2003-2012 by HIROSE, Yuuji [yuuji@yatex.org]
+;;; Last modified Mon Jan  9 20:13:53 2012 on firestorm
 ;;; $Id$
 
 (defvar YaTeX-package-ams-envs
diff --git a/yatexprc.el b/yatexprc.el
index 218d3b8..9df5aa1 100644
--- a/yatexprc.el
+++ b/yatexprc.el
@@ -1,8 +1,8 @@
 ;;; -*- Emacs-Lisp -*-
 ;;; YaTeX process handler.
 ;;; yatexprc.el
-;;; (c)1993-2010 by HIROSE Yuuji.[yuuji@yatex.org]
-;;; Last modified Fri Feb 18 10:35:39 2011 on firestorm
+;;; (c)1993-2012 by HIROSE Yuuji.[yuuji@yatex.org]
+;;; Last modified Mon Jan  9 20:20:24 2012 on firestorm
 ;;; $Id$
 
 ;(require 'yatex)
diff --git a/yatexsec.el b/yatexsec.el
index 9b4d72a..eafcf9a 100644
--- a/yatexsec.el
+++ b/yatexsec.el
@@ -1,8 +1,8 @@
 ;;; -*- Emacs-Lisp -*-
 ;;; YaTeX sectioning browser.
 ;;; yatexsec.el
-;;; (c) 1994,1998,1999,2003 by HIROSE Yuuji [yuuji@yatex.org]
-;;; Last modified Thu Mar 24 10:35:24 2011 on firestorm
+;;; (c) 1994-2012 by HIROSE Yuuji [yuuji@yatex.org]
+;;; Last modified Mon Jan  9 20:20:32 2012 on firestorm
 ;;; $Id$
 
 (defvar YaTeX-sectioning-level