Adobe has departed from their usual Creative Suite release cycle to announce CS 5.5, shipping in early May. There are some speculative reasons for this new model - i.e. "it's about money", and that may well be a part of it. But Adobe has made some significant improvements to several CS components that are really more than just 'updates' and seemed to justify a new, full release.
This little promo was pulled together from a few separate Adobe presentations which illustrated the overall updates and advantages to this new 'dot' release. In this promo, we focused on the Flash advances as those seem significantly enhanced to further support the 'author once, deploy anywhere' type of approach - something we developers certainly value.
There's a lot more to the CS 5.5 release than just Flash platform updates, however. Here's a list of other info from the Adobe Developer Connection site:
• What’s new in Dreamweaver CS5.5
• Introducing Flash Catalyst CS5.5
• Mobile development using Adobe Flex 4.5 SDK and Flash Builder 4.5
• Introducing Flash Builder 4.5 for PHP
• CS 5.5 After Effects