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diff --git a/lib/Catalyst/Upgrading.pod b/lib/Catalyst/Upgrading.pod
index 79a90ec..75a74f7 100644
--- a/lib/Catalyst/Upgrading.pod
+++ b/lib/Catalyst/Upgrading.pod
@@ -2,6 +2,53 @@
 
 Catalyst::Upgrading - Instructions for upgrading to the latest Catalyst
 
+=head1 Upgrading to Catalyst 5.90090
+
+L<Catalyst::Utils> has a new method 'inject_component' which works the same as the method of
+the same name in L<CatalystX::InjectComponent>.  You should start converting any
+use of the non core method in your code as future changes to Catalyst will be
+sychronized to the core method first.  We reserve the right to cease support
+of the non core version should we reach a point in time where it cannot be
+properly supported as an external module.  Luckily this should be a trivial
+search and replace.  Change all occurances of:
+
+    CatalystX::InjectComponent->inject(...)
+
+Into
+
+    Catalyst::Utils::inject_component(...)
+
+and we expect everything to work the same (we'd consider it not working the same
+to be a bug, and please report it.)
+
+We also cored features from L<CatalystX::RoleApplicator> to compose a role into the
+request, response and stats classes.  The main difference is that with L<CatalystX::RoleApplicator>
+you did:
+
+    package MyApp;
+
+    use Catalyst;
+    use CatalystX::RoleApplicator;
+
+    __PACKAGE__->apply_request_class_roles(
+      qw/My::Request::Role Other::Request::Role/);
+
+Whereas now we have three class attributes, 'request_class_traits', 'response_class_traits'
+and 'stats_class_traits', so you use like this (note this value is an ArrayRef)
+
+
+    package MyApp;
+
+    use Catalyst;
+
+    __PACKAGE__->request_class_traits([qw/
+      My::Request::Role
+      Other::Request::Role/]);
+
+(And the same for response_class_traits and stats_class_traits.  We left off the
+traits for Engine, since that class does a lot less nowadays, and dispatcher.  If you
+used those and can share a use case, we'd be likely to support them.
+
 =head1 Upgrading to Catalyst 5.90085
 
 In this version of Catalyst we made a small change to Chained Dispatching so
@@ -66,6 +113,40 @@ If this causes you trouble and you can't fix your code to conform, you may set t
 application configuration setting "use_chained_args_0_special_case" to true and
 that will revert you code to the previous behavior.
 
+=head2 More backwards compatibility options with UTF-8 changes
+
+In order to give better backwards compatiblity with the 5.90080+ UTF-8 changes
+we've added several configuration options around control of how we try to decode
+your URL keywords / query parameters.
+
+C<do_not_decode_query>
+
+If true, then do not try to character decode any wide characters in your
+request URL query or keywords.  Most readings of the relevent specifications
+suggest these should be UTF-* encoded, which is the default that L<Catalyst>
+will use, hwoever if you are creating a lot of URLs manually or have external
+evil clients, this might cause you trouble.  If you find the changes introduced
+in Catalyst version 5.90080+ break some of your query code, you may disable 
+the UTF-8 decoding globally using this configuration.
+
+This setting takes precedence over C<default_query_encoding> and
+C<decode_query_using_global_encoding>
+
+C<default_query_encoding>
+
+By default we decode query and keywords in your request URL using UTF-8, which
+is our reading of the relevent specifications.  This setting allows one to
+specify a fixed value for how to decode your query.  You might need this if
+you are doing a lot of custom encoding of your URLs and not using UTF-8.
+
+This setting take precedence over C<decode_query_using_global_encoding>.
+
+C<decode_query_using_global_encoding>
+
+Setting this to true will default your query decoding to whatever your
+general global encoding is (the default is UTF-8).
+
+
 =head1 Upgrading to Catalyst 5.90080
 
 UTF8 encoding is now default.  For temporary backwards compatibility, if this