diff --git a/WHATSNEW b/WHATSNEW
index b37e91d68..0a885507c 100644
--- a/WHATSNEW
+++ b/WHATSNEW
@@ -40,7 +40,8 @@ Changes that could break older environments:
 * <xmlproperty> will no longer fail if the file to be loaded doesn't exist.
 
 * XML namespaces are now enabled in the XML parser, meaning XML namespace
-  declarations no longer cause errors.
+  declarations no longer cause errors. However task names containing colons
+  will cause errors unless there is a corresponding namespace uri.
 
 * The <ftp> and <telnet> tasks now require Jakarta Commons Net instead
   of the older ORO Netcomponents version.  See
@@ -84,6 +85,11 @@ Changes that could break older environments:
   that propetries may get expanded twice if you use an
   <expandproperties> filterreader.  Bugzilla Report 17782.
 
+* User defined tasks and typedefs are now handled internally in the
+  same way as predefined tasks and typedefs. Also tasks and typedefs
+  are resolved at a later stage. This causes some
+  differences especially for user defined task containers.
+
 Fixed bugs:
 -----------
 * Filter readers were not handling line endings properly.  Bugzilla
@@ -638,6 +644,16 @@ Other changes:
   or end of a file. Discussion started at
   http://marc.theaimsgroup.com/?l=ant-user&m=106366791228585&w=2
 
+* New task <import>
+
+* New task <macrodef>
+
+* New task <presetdef>
+
+* Ant libraries that can make use of namespaces to avoid name
+  clashes of custom tasks
+
+
 Changes from Ant 1.5.3 to Ant 1.5.4
 ===================================