The Digital Editions application asked me to update to the latest version of the software. What does that mean?
Periodically, Adobe updates Digital Editions with new features or fixes to minor problems. These updates help ensure that Digital Editions works properly, and they may contain important changes to security. The distributed RIA architecture of Digital Editions and its associated content protection services requires that Internet-connected users always use the latest version, similar to a browser-based web application. This RIA model also allows Adobe to deliver a higher level of security and functionality.