Move the autoescape extension and with statement to be built-in
diff --git a/CHANGES b/CHANGES
index bd0dc75..afc6f76 100644
--- a/CHANGES
+++ b/CHANGES
@@ -40,6 +40,7 @@
   between the different include and import constructs.  Context is now always
   propagated the same way.  The only remaining differences is the defaults
   for `with context` and `without context`.
+- The `with` and `autoescape` tags are now built-in.
 
 Version 2.8.2
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