With the release of SAP NetWeaver Composition Environment 7.2, portal development has been enhanced with a number of new capabilities:

• The Cache Management API provides a uniform way to manage internal portal caches
• The JavaScript client-side Navigation API for the Ajax Framework Page (AFP) exposes the navigation hierarchy and enables you to control navigation in the portal
• The User Content Directory (UCD) provides a storage location for applications to store and access user data to improve the user experience
• The Administration Studio Framework, which provides a set of tools for modifying the administration environment of the portal, has been enhanced with new capabilities
• The Layout Tag Library and Navigation Tag library have been extended with new tags contributed by Sven Kannengiesser 

      Note that these extended libraries are also available to SAP NetWeaver 7.02 customers.

The tools and procedures of the Enterprise Portal Perspective in SAP NetWeaver Developer Studio have changed.

And, last but not least, the Portal Developer’s Guide has been restructured, updated, streamlined, and enhanced to improve its usability. In particular, check out the following chapters:

• Customizing Portal User Interfaces
• Enterprise Portal Client Framework (EPCF)
• Optimizing Performance of Portal Applications