Flex SDK 4.5

Welcome to Flex SDK 4.5 which is governed by three main goals:

• Multi-Screen Development: Allow developers to build applications that target the web, desktop or mobile devices using a single unified framework.
• Spark Maturation: Polish and grow the Spark architecture by adding new Spark components and capabilities.
• Large-Application Development: Support developers building large applications by improving fundamental pieces of the Flex infrastructure.

As of June 19th, 2011, we shipped an update to Flex/Flash Builder 4.5 called 4.5.1 which delivers full support for Apple iOS and Blackberry Tablet OS capabilities. If you already have Flash Builder 4.5 installed then an updater is available from Adobe.com or through Adobe Application Manager (AAM). New trial downloads of Flash Builder are version 4.5.1, so don’t need to be updated after installation. If you want purely the standalone Flex 4.5.1 SDK, grab the builds off our opensource site.

Builds

Flex SDK 4.5 builds are now available.

The Flex SDK 4.5 release is built atop the latest (and as of yet, unreleased) Flash Player and AIR runtimes. Because of this tight coupling, we are unable to provide nightly builds that showcase in-development Flash Player and AIR features.

Once the current in-development Flash Player and AIR runtimes are showcased in a public release, Flex SDK 4.5 nightly builds will resume. In the interim, we are releasing semi-regular stable builds that showcase Flex SDK 4.5 feature work not dependent on features under development in the latest Flash Player and AIR runtimes.

You can access these special builds of Flex SDK 4.5 here.

Open Iteration Meetings

We had the first Flex SDK 4.5 Open Iteration Meeting on October 1, 2010. The open iteration meetings cover past Flex SDK 4.5 iterations and discuss what's in store for upcoming iterations.

Meeting: Flex SDK 4.5 Open Iteration Meeting
Date: October 1, 2010
Time: 8 - 9 AM PT (11 am ET, 4pm UK, 5pm CET)
Connect Details: http://my.adobe.acrobat.com/hero-open-source/

Milestones

Milestone | Date
Product Defined | April 2010
Flex SDK 4.5 Preview Release | October 24, 2010
Flex SDK 4.5 Announce | April 11, 2011
Flex SDK 4.5 Ship | May, 2011

Flex SDK 4.5 Desktop Feature Specifications

RSL Sharing Among Modules (posted 12/10/10)
Spark Form (posted 6/30/10)
Spark Image (posted 6/30/10)
Enhanced RSLs (posted 6/30/10)
OSMF 1.0 Integration (posted 7/29/10)
Size Report (posted 8/26/10)
Spark Formatters (posted 8/26/10)
Spark DataGrid (posted 8/26/10/, updated 1/19/11)
Spark DataGrid Accessibility (posted 9/27/10)
MovieClipSWFLoader (posted 10/6/10)
Effects - Transition Interruption (posted 11/4/10)
Prompts in Text Controls (posted 11/11/10)
Spark Module and ModuleLoader (posted 11/11/10)
Baseline Alignment in Horizontal Layout (posted 11/11/10)
Effects - True AutoReverse (posted 12/2/10)
Spark Validators (posted 12/14/10)
Spark Sort and SortField (posted 12/14/10)
SkinnablePopUpContainer (posted 02/16/2011)
Text Layout Framework 2.0 Integration (posted 3/7/2011)

Flex SDK 4.5 Mobile Feature Specifications

View & ViewNavigator (updated 1/24/11)
ViewNavigatorApplication (updated 1/24/11)
TabbedViewNavigator and TabbedViewNavigatorApplication (posted 1/24/11)
Mobile Application Components - ActionBar (posted 6/30/10)
Mobile Application Components - Text Components (posted 9/30/10)
Mobile Application Components - List, Scroller and Touch Gestures (posted 9/30/10)
Mobile Splash Screen (posted 9/30/10)
Mobile View Menu (posted 11/16/10)
Bounce/Pull Effects for List (posted 01/12/11)
Mobile View Transitions (posted 1/17/10)
Busy Indicator (posted 01/19/11)
Different Bitmaps Based On Screen DPI (posted 01/26/11)
CSS Media Query (posted 01/27/11)
Override Default Density Mapping (posted 1/27/2011)
DPI Auto Scaling for Density Independent Mobile Apps (posted 02/16/2011)
Mobile SoftKeyboard Support (posted 2/16/2011)

Other Flex SDK 4.5 Documents

Flex 4.5 SDK Release Notes (posted 05/02/11)
Flex SDK "Hero" Preview Release Notes (posted 10/24/10)
Flex 4.5 Backwards Compatibility (posted 10/10/10)