Add string concat item

diff --git a/Doc/whatsnew/whatsnew24.tex b/Doc/whatsnew/whatsnew24.tex
index eb6e1a590b7bf1ae293a78716b6e6167070367f0..cb05c3ac2a91ad59a7af399eaa2fe051333d8ae4 100644 (file)
--- a/Doc/whatsnew/whatsnew24.tex
+++ b/Doc/whatsnew/whatsnew24.tex
@@ -815,6 +815,13 @@ the name \samp{None} is now a syntax error.
   the generated bytecode for list comprehensions and speeds them up
   by about a third.
 
+\item String concatenations in statements of the form \code{s = s +
+"abc"} and \code{s += "abc"} are now performed more efficiently in
+certain circumstances.  This optimization won't be present in other
+Python implementations such as Jython, so you shouldn't rely on it;
+using the \method{join()} method of strings is still recommended when
+you want to efficiently glue a large number of strings together.
+
 \end{itemize}
 
 The net result of the 2.4 optimizations is that Python 2.4 runs the