Mention HTTP 0.9's partial demise.
diff --git a/Doc/whatsnew/3.2.rst b/Doc/whatsnew/3.2.rst
index e8cf628..d643c75 100644
--- a/Doc/whatsnew/3.2.rst
+++ b/Doc/whatsnew/3.2.rst
@@ -1898,3 +1898,9 @@
or race conditions when open file descriptors would leak into the child
process.
+* Support for legacy HTTP 0.9 has been removed from :mod:`urllib.request`
+ and :mod:`http.client`. Such support is still present on the server side
+ (in :mod:`http.server`).
+
+ (Contributed by Antoine Pitrou, :issue:`10711`.)
+