Update TeX syntax file.
diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index b37ceac..71afa9f 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -1,4 +1,4 @@
-*syntax.txt*	For Vim version 7.3c.  Last change: 2010 Jul 25
+*syntax.txt*	For Vim version 7.3c.  Last change: 2010 Jul 26
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -2700,6 +2700,16 @@
 Putting "let g:tex_stylish=1" into your <.vimrc> will make <syntax/tex.vim>
 always accept such use of @.
 
+					*tex-cchar* *tex-cole* *tex-conceal*
+Taking Advantage of Conceal Mode~
+
+If you have |'conceallevel'| set to 1 and if your encoding is utf-8, then a
+number of character sequences will be translated (ie. better visualized) using
+|syn-cchar|, including various accented characters, Greek characters in
+MathZones, and superscripts and subscripts in MathZones.  Not all characters
+can be made into superscripts or subscripts; the constraint is due to what
+utf-8 supports.
+
 
 TF						*tf.vim* *ft-tf-syntax*
 
diff --git a/runtime/doc/todo.txt b/runtime/doc/todo.txt
index 849fc89..1759b72 100644
--- a/runtime/doc/todo.txt
+++ b/runtime/doc/todo.txt
@@ -33,11 +33,18 @@
 Access to free memory with :redir command. (Dominique Pelle, 2010 Jul 25)
 Easier way to reproduce in later message.
 
+Patch for VMS. Zoltan Arpadffy, 2010 Jul 26.
+
 Patch for :find completion. (Nazri Ramliy)
 But I prefer to keep term.h and include/term.h  Nazri will work on it.
 
 Move more common code from if_python.c and if_python3.c to if_py_both.h
 
+Problem with concealends in v50 of tex.vim? (Charles Campbell, 2010 Jul 26)
+
+Add filetype completion to user commands. (Christian Brabandt, 2010 Jul 26)
+But call it "filetype" instead of "syntax".
+
 Before release 7.3:
 - Rename vim73 branch to default (hints: Xavier de Gaye, 2010 May 23)