Vaadin modernises in version 7
Vaadin 7 is the first major update of the GWT-based Java web framework since 2009, when version 6 was released. The major change in Vaadin 7 is, according to the announcement, that Google Web Toolkit (GWT) is now an integrated part of the framework rather than a dependency. The change is touted as enabling better support for client-side widgets and opening up the possibility of Vaadin-based off-line applications. The developers will also be able to address GWT issues more rapidly as they have control of their own GWT code. Vaadin 7 includes the features of GWT 2.5 such as Super Dev Mode and the Elemental library.
In conjunction with the repositioning of GWT, the Vaadin developers have opened up the client-side of its client/server model to allow coders to create applications that work better in a mobile context by making it easier to create components which offload work to the server or work better off-line.