ArcGIS Blog : ArcGIS API and Viewer for Flex 3.0 Beta Available Soon

The Flex API enables you to build dynamic rich Internet applications (RIAs) on top of ArcGIS Server. The 3.0 beta release will be available in late December on the Esri Beta Community Site. This release requires Adobe Flex 4.5 SDK or higher, which in turn requires at least Flash Player 10.2. It is designed to support ArcGIS Server 10.1 functionality including:

• Dynamic rendering (changing renderers, layer order, and adding layers) in map services
• Generating data classifications in map services
• Use enhanced query options to order results and generate statistics
• Editor tracking in feature services
• Use the new PrintTask to generate printable output on the server
• z/m value support in map and feature services.

The ArcGIS Viewer for Flex is a ready-to-deploy viewer application. You can configure the Viewer with application builder or edit XML configuration files. This release includes support for ArcGIS Server 10.1 functionality.

You will be able to get both of these releases from the Esri Beta Community site.ArcGIS Blog : ArcGIS API and Viewer for Flex 3.0 Beta Available Soon