diff --git a/runtime/doc/todo.txt b/runtime/doc/todo.txt
index 563a714..920dc8a 100644
--- a/runtime/doc/todo.txt
+++ b/runtime/doc/todo.txt
@@ -35,6 +35,10 @@
 
 Problem with \NL in Ex script. (Ray Frish, 2010 Aug 10)
 
+Using longest completion (with "longest" in 'wildmode' or using CTRL-L) after
+:find will not work, because of shortening the results.  Don't shorten when
+looking for the longest common part of the matches.
+
 Bug: E685 error for func_unref(). (ZyX, 2010 Aug 5)
 
 CTRL-] on help tag |/[\n]| doesn't jump to the right place. (Tony Mechelynck,
@@ -52,7 +56,7 @@
 Problem producing tags file when hebrew.frx is present.  It has a BOM.
 Results in E670. (Tony Mechelynck, 2010 May 2)
 
-setpos() does not resture cursor position after :normal. (Tyru, 2010 Aug 11)
+setpos() does not restore cursor position after :normal. (Tyru, 2010 Aug 11)
 
 Test 73 fails on MS-Windows when compiled with DJGPP and run twice.  How to
 delete the Xfind directory?  Add an rmdir() function, just like we have
@@ -113,7 +117,11 @@
 like it has ":keepjumps" before it.
 
 Coverity: ask someone to create new user: Dominique.
-look into reported defects: http://scan.coverity.com/rung2.html
+Check if there are new reported defects: http://scan.coverity.com/rung2.html
+
+When setting 'undofile' while the file is already loaded, but unchanged, try
+to read the undo file.  Requires computing a checksum of the text. (Andy
+Wokula)
 
 Bug with 'incsearch' going to wrong line. (Wolfram Kresse, 2009 Aug 17)
 Only with "vim -u NONE".