Migration

Migrating Flex 3 applications to Flex 4.5 – Part 4
Greg Lafrance (Nov 07, 2011)
Complete a Flex 3 to Flex 4.5 migration with Spark Panel, List, DataGrid, and VGroup components.

Migrating Flex 3 applications to Flex 4.5 – Part 3
Greg Lafrance (Oct 31, 2011)
Continue a Flex 3 to Flex 4.5 migration by adding a key Spark container and a basic skin.

Migrating Flex 3 applications to Flex 4.5 – Part 2
Greg Lafrance (Oct 24, 2011)
Continue a Flex 3 to Flex 4.5 migration by updating and skinning the Application container.

Migrating Flex 3 applications to Flex 4.5 – Part 1
Greg Lafrance (Oct 17, 2011)
Begin a Flex 3 to Flex 4.5 migration by importing a project and correcting build errors.

A Flex 3 developer's intro to Flex 4.5 and Flash Builder 4.5
Adam Tuttle (Jul 25, 2011)
Learn the basics of developing apps using Flex 4.5 from a Flex 3 perspective.

Migrating Flex 3 applications to Flex 4 – Part 4: Using Spark Panel, List, and VGroup components and adding custom skins and states
Greg Lafrance (Apr 25, 2011)
Complete a Flex 3 to Flex 4 migration with Spark Panel, List, and VGroup components.

Migrating Flex 3 applications to Flex 4 – Part 3: Introducing Spark components and simple skins
Greg Lafrance (Apr 25, 2011)
Continue a Flex 3 to Flex 4 migration by adding a key Spark container and a basic skin.

Migrating Flex 3 applications to Flex 4 – Part 2: Beginning migration of the Dashboard application to Flex 4
Greg Lafrance (Apr 19, 2011)
Continue a Flex 3 to Flex 4 migration by updating and skinning the Application container.

Migrating Flex 3 applications to Flex 4 – Part 1
Greg Lafrance (Apr 05, 2011)
Begin a Flex 3 to Flex 4 migration by importing a project and correcting build errors.

Technical guide: Upgrading Flex 3 applications to Flex 4 SDK
Mihai Corlan, Alin Achim (Dec 13, 2010)
Get the information about upgrading your Flex applications to the current version of the Flex SDK.

Migrating to Flex 4: Containers 
Renaun Erickson (Nov 16, 2010)
Explore the container classes and component layouts of HBox, HGroup, SkinnableContainer, and BorderContainer. (5:23)

Transitioning an application from Flex 3 to Flex 4
Renaun Erickson (Sep 28, 2010)
Walk through the steps needed to migrate a real-world application from Flex 3 to Flex 4.

Moving existing Flex projects from Flex Builder 3 to Flash Builder 4
Andrew Shorten (Apr 30, 2010)
Move to Flash Builder 4 and benefit from the vast majority of the new features added in this release whilst continuing to work with your Flex 3 projects.

Differences between Flex 3 and Flex 4
Joan Lafferty (Oct 04, 2009)
Learn about the differences in architecture, components, layouts, use of states, and effects.

Flex Solutions excerpt: Migrating Flex applications onto the desktop with Adobe AIR
Marco Casario (Jun 02, 2008)
Create an AIR app using Flex Builder and launch it from a common desktop.

Profile: Programmers adopt Flex and migrate to ActionScript 3
Phil Brock (Aug 01, 2007)
Learn how an engineering team adopted Flex Builder 2 and successfully migrated from ActionScript 2 to ActionScript 3 to build several applications that look, feel, and perform like desktop applications.