We are excited to release a new version of the OpenGeo Suite! In order to capture the many improvements and bug fixes happening in the open source community, we are moving toward a more rapid release cycle. For example, GeoServer now has JDBC datastore session startup/teardown SQL comments, as well as support for paletted PNG images with alpha transparency.
In GeoExplorer (which really is pretty amazing, if you haven't seen it recently) there is now smoother tile display, including fade-in. Also, the map legend has now been integrated directly into the layer tree. Finally, we have changed the default base layer to be MapQest OSM, moving away from Google (though Google base layers are still available).
All of these new features are available in the Community Edition, Enterprise Edition (which includes a free 30 day trial of our support), and all Cloud Editions! Try any version you'd like and contact us to purchase the support you need to put your project into production!