Here is a guide to upgrading from the various versions

== FROM 3.0.1 <= 3.0.0

- Adjust the <%= javascript_include_tag 'datetime_toolbocks', 'datetime_toolbocks_window', [...], :plugin => 'datetime_toolbocks' %> and remove the "datetime_toolbocks_window" include. Leave all others as they are.

== FROM 3.0.0 <= 2.x

- Upgrade the javascripts

<%= javascript_include_tag 'prototype' %>

- Update the javascript_include_tag.