upgrading Client application in GWT version 2.1.0 to GWT version 2.3.0

I am upgrading my application that is designed in GWT version 2.1.0. and the upgrade version will 2.3.0.

Please tell me what kind of changes i have to do for upgrade. and i am also using GWT maven plugin.

--
You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group.
To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscribe@googlegroups.com.
To post to this group, send email to google-web-toolkit@googlegroups.com.
Visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
For more options, visit https://groups.google.com/groups/opt_out.