In addition to bug fixes, beta 7 contains the following:
Overlay DOM structure improved
Overlay widgets (e.g. tooltips, sub windows and notifications) are now placed in the same part of the DOM hierarchy as the rest of the UI. Thanks to this, event handling and theming can be simplified as there is one common ancestor element for everything belonging to a particular UI instance.
For short examples on how to use the new features, check out the Vaadin 7 mini tutorials:
https://vaadin.com/wiki/-/wiki/Main/Vaadin+7
For information on how to migrate from Vaadin 6 to Vaadin 7, see
http://dev.vaadin.com/wiki/Vaadin7/MigrationGuide
This is an beta release so we expect there to be bugs. We will no longer be making large new features but finalization of the current features might still affect API in some places. All your comments on the new features are welcome. Please post all Vaadin 7 related comments in the Vaadin 7 category.