All, 3.0.1 is now available on the download page for your continued Hudson enjoyment. This is mainly a bugfix release with a small number of UI Enhancements:
New Core property: Privacy Message. This optional text will be printed in the footer of every page of the Web UI. It is intended as a place where admins can advertise the relevant privacy, confidentiality or copyright statements that may be reqired for the site. This String value can contain markup for formatting and links if required. The value is configured on the main configuration screen
New Core property: Instance Tag. This optional text will be printed in the header, footer and window title of every page of the Web UI. It allows admins who have several Hudson instances to manage to identify which instance they are working with at a glance, e.g. "Production", "Sandbox" etc. The tag used is an arbitrary String value and it is recommended that you keep the value short so that it can be fully displayed in the available space. Markup is ignored in this property. The value is configured on the main configuration screen
Green balls are now the default for a successful build rather than blue. You can revert to using a blue ball via an option in the main configuration screen (if you really want to!). Red balls are still red.
New Hudson Branding Bar. The footer of each page carries a branding bar containing the text Powered by Hudson Open Source Continuous Integration Server from the Eclipse Foundation