Useful documentation for Flex Developers

[flexy]

The latest version of the Flex framework is Flex 4. If you're starting an application from scratch, you should consider working with the latest API for improved productivity and performance.

Flex 3

• What is Flex?
• The Flex 3 developers' guide (Adobe PDF) - You really should read this if you're new to Flex, or want to better understand Flex application architecture
• Flex 3 Language Reference
• Building & deploying Flex 3 applications (Adobe PDF)
• Creating & extending Flex components (Adobe PDF)
• Improving Flex application performance

You can also see useful documentation for AS3.0 development over on the AS3.0 board

Flex 2

• The Flex 2 developer's guide (Adobe PDF) - You really should read this if you're new to Flex, or want to better understand Flex application architecture
• Flex 2 Language Reference (no longer updated)
• Building & deploying Flex 2 applications (Adobe PDF)
• Creating & extending Flex components (Adobe PDF)