Note missing explanation
diff --git a/Doc/whatsnew/whatsnew21.tex b/Doc/whatsnew/whatsnew21.tex
index d54dd5b..eeeabdd 100644
--- a/Doc/whatsnew/whatsnew21.tex
+++ b/Doc/whatsnew/whatsnew21.tex
@@ -15,7 +15,7 @@
{\large This document is a draft, and is subject to change until
the final version of Python 2.1 is released. Currently it is up to date
-for Python 2.1 beta 1. Please send any comments, bug reports, or
+for Python 2.1 beta 2. Please send any comments, bug reports, or
questions, no matter how minor, to \email{amk1@bigfoot.com}. }
It's that time again... time for a new Python release, version 2.1.
@@ -799,7 +799,7 @@
\item A new method, \method{popitem()}, was added to dictionaries to
enable destructively iterating through the contents of a dictionary;
-this can be faster for large dictionaries because .
+this can be faster for large dictionaries because XXX.
\code{D.popitem()} removes a random \code{(\var{key}, \var{value})}
pair from the dictionary and returns it as a 2-tuple. This was
implemented mostly by Tim Peters and Guido van Rossum, after a