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diff --git a/lib/Catalyst/Delta.pod b/lib/Catalyst/Delta.pod
index e75a052..7959a6e 100755
--- a/lib/Catalyst/Delta.pod
+++ b/lib/Catalyst/Delta.pod
@@ -7,6 +7,24 @@ Catalyst::Delta - Overview of changes between versions of Catalyst
 This is an overview of the user-visible changes to Catalyst between major
 Catalyst releases.
 
+=head2 VERSION 5.90100
+
+Support for type constraints in Args and CaptureArgs has been improved.  You may
+now inherit from a base controller that declares type constraints and use roles
+that declare type constraints.  See L<Catalyst::RouteMatching> for more.
+
+You may now. also use a full type constraint namespace instead of inporting type
+constraints into your package namespace.
+
+We changed the way the middleware stash works so that it no longer localizes
+the PSGI env hashref.  This was done to fix bugs where people set PSGI ENV hash
+keys and found them to dissappear in certain cases.  It also means that now if
+a sub applications sets stash variables, that stash will now bubble up to the
+parent application.  This may be a breaking change for you since previous
+versions of this code did not allow that.  A workaround is to explicitly delete
+stash keys in your sub application before returning control to the parent
+application.
+
 =head2 VERSION 5.90097
 
 =head3 Defined how $c->uri_for adds a URI fragment.
@@ -22,6 +40,13 @@ follow the new, supported specification:
 This will be a breaking change for some codebases, we recommend testing if
 you are creating URLs with fragments.
 
+B<NOTE> If you are using the alternative:
+
+    $c->uri_for('/foo/bar#baz')
+
+construction, we do not attempt to encode this and it will make a URL with a
+fragment of 'baz'.
+
 =head2 VERSION 5.90094
 
 =head3 Multipart form POST with character set headers