Document the object allocator
Minor sentence change
diff --git a/Doc/whatsnew/whatsnew21.tex b/Doc/whatsnew/whatsnew21.tex
index 878838f..9127ffe 100644
--- a/Doc/whatsnew/whatsnew21.tex
+++ b/Doc/whatsnew/whatsnew21.tex
@@ -231,8 +231,8 @@
There are also corresponding changes of interest to C programmers;
there's a new slot \code{tp_richcmp} in type objects and an API for
performing a given rich comparison. I won't cover the C API here, but
-will refer you to PEP 207, or the documentation for Python's C API,
-for the full list of related functions.
+will refer you to PEP 207, or to 2.1's C API documentation, for the
+full list of related functions.
\begin{seealso}
@@ -605,6 +605,16 @@
\begin{itemize}
+
+\item A specialized object allocator is now optionally available, that
+should be faster than the system \function{malloc()} and have less
+memory overhead. The allocator uses C's \function{malloc()} function
+to get large pools of memory, and then fulfills smaller memory
+requests from these pools. It can be enabled by providing the
+"--with-pymalloc" option to the \filename{configure} script; see
+\filename{Objects/obmalloc.c} for the implementation details.
+Contributed by Vladimir Marangozov.
+
\item The speed of line-oriented file I/O has been improved because
people often complain about its lack of speed, and because it's often
been used as a na\"ive benchmark. The \method{readline()} method of