Apache Flex

Tuesday August 06, 2013

Apache Flex 4.10 Released!

The Apache Flex project, the all-volunteer group of developers, and stakeholders in the development framework, today announced the release of Apache Flex 4.10.0. This release makes some important improvements over previous versions of Apache Flex and Adobe Flex.

"We are seeing interest in the Flex development framework increase rapidly. There have been more than a half a million page views in the past 6 months, more than 9000 downloads of the Flex SDK in the past 3 months, and around 130,000 unique visitors to the flex.apache.org website. Since the initial release of Apache Flex at the end of 2012, the interest in the project has grown steadily,” said OmPrakash Muppirala, committer and member of the Apache Flex PMC.

What’s new in Apache Flex v4.10.0?

The Apache Flex 4.10.0 SDK allows application developers to build expressive web and mobile applications using MXML for layout and ActionScript 3, an ECMAScript based language for client-side scripting.

The Apache Flex 4.10.0 release contains many improvements that professional software development teams will appreciate. This advances the framework forward. It is truly becoming one of the best cross-platform programming languages used to write applications that are testable and can be compiled to run on multiple technology platforms from a single set of code.

Apache Flex 4.10.0 highlights include:

  • Support for latest versions of Flash Player and AIR runtimes. At the same time, we have made it easier for developers wanting to take advantage of the latest advances in the Flash runtimes by letting them choose the versions during installation. The Apache Flex SDK Installer now allows developers to select various combinations of the Flex SDK, Flash Player and AIR runtimes. All the settings and configurations are taken care of during the installation, so the developer can just start coding!

  • Improved support for older Flash Player versions. Enterprise environments have more stringent requirement in terms of upgrading Flash Player versions. Now, because of our improved backwards compatibility, those customers can safely upgrade to the latest version of the Flex SDK without having to force a Flash Player upgrade on their end users.

  • Added over 15 new Spark components matching or replacing their mx counterparts. The new components ensure that SDK users can benefit from the advances made in the Spark architecture throughout more of the development process.

  • “Out of the box” support for Advanced Telemetry allowing developers to easily profile their application and improve performance using Adobe Scout.

  • Better localization for multiple languages. Flex 4.10.0 is better now when trying to make application for multiple countries and languages.

  • Better international support for dates in formatters, validators, and the DateField and DateChooser components.

  • Better for developer productivity - less Run Time Errors (RTEs) and workarounds required in 4.10.0

  • 480 dpi mobile resolution/skin support means that Flex SDK users can now target high resolution devices such as iOS Retina, etc.

Apache Flex is available in source form from the following download page:

If you are a developer that wishes to use the Apache Flex SDK in your projects, it is recommended you install Apache Flex by using the Apache Flex IDE installer:

When downloading from a mirror site, please remember to verify the downloads using signatures or MD5 hashes.

For more information on Apache Flex, visit the project home page:


Great news! Congratulation for the whole involved team.

Posted by Juliano Mendes on August 06, 2013 at 04:47 PM GMT #

Congrats for this release, looking forward to use all the new features on my new projects!

Posted by Mr. Phantom on August 06, 2013 at 07:00 PM GMT #

Just a note: older Flex versions could handle iOS retina devices with no problems. 480 dpis is more aimed to extra extra high density devices like the Samsung Galaxy S4, also, extra extra extra high density screens should be taken into account sooner or later (640 dpis), as Android already supports them.

Posted by HB on August 06, 2013 at 11:36 PM GMT #

very good news, we will download and try to use it.

Posted by jerry on August 07, 2013 at 01:47 AM GMT #

Finally!!! I've been waiting for this for months. Many thanks to the Apache Flex Team and the community out there! Great Job! Can't wait what's next, hoping GPU support!

Posted by DarkStone on August 07, 2013 at 02:09 AM GMT #

Congrats for the whole team, you have made it again to make flex even better, hope we will have complete mobile/tablet support for flex across all brands in near future.

Posted by Sateesh on August 07, 2013 at 09:41 AM GMT #

The day they support html inside flex app...I will be very happy!..cograts to the team :-)

Posted by shailendra kamath on August 07, 2013 at 06:53 PM GMT #

Great work!!!

Posted by Fabius on August 07, 2013 at 10:27 PM GMT #

We have been working with flex since the begining , now we realize there is an incredible team working on making things really better, a tool with a big performance.

Posted by Alejandro De la Peña on August 08, 2013 at 01:07 AM GMT #

very good news

Posted by chendonghai on August 08, 2013 at 01:14 AM GMT #


Posted by mani on August 08, 2013 at 01:26 PM GMT #

Hi, congrats !!! I have one question : is there any way to display Mathml with flash builder 4.7 and apache flex SDK 4.10 ? (Sorry for my english, but i'm not bilingual ;-) )

Posted by Elizabeth Parent on August 08, 2013 at 04:06 PM GMT #

so good

Posted by ds on August 08, 2013 at 06:15 PM GMT #

Exciting project! Can someone write about the "initial Linux support" that was in the release notes.

Posted by Arul Selvan on August 08, 2013 at 06:50 PM GMT #

What are the new components in 4.10? Where can I find docs on them? How the the SDK size changed?

Posted by Sydd on August 08, 2013 at 10:00 PM GMT #

Congratulations!! Please, don't forget that documentation is Achilles heel of all projects and software products.

Posted by Kaluosi on August 09, 2013 at 09:37 AM GMT #

Thank You Team! Flex is the better JavaScript. All Flash/Flex basher, they don't understand Software-Engineering/Programming/Architecture! Thats' why the don't understand why Flex is a great Technology! Sorry guys...

Posted by Vladi on August 09, 2013 at 11:27 AM GMT #

Give up JavaScript -> do Flex! - Strong Types - lots of UI Components (DRY) - Skinning - Strong Frameworks: Parsley, Robotlegs, SpringActionscript/PureMVC ... - Croos-Plattform (sorry, but full HTML5 support is a dream!) - and more...

Posted by Flexi on August 09, 2013 at 11:30 AM GMT #

HTML5/JS is not designer for big client applications! But Flex is!!! Thank You Dev-Team! "Don't Give Up" this technology!

Posted by Developer on August 09, 2013 at 11:35 AM GMT #

Great Job, is there a list of the replacing spark components

Posted by Keith on August 11, 2013 at 11:30 PM GMT #

thanks the flex team!

Posted by on August 12, 2013 at 10:07 AM GMT #

How do i turn on advanced telemetry? Right now it does not work as expected ---Reply: Please ask on the users@flex.apache.org mailing list.---

Posted by MichaelTkachuk on August 12, 2013 at 12:14 PM GMT #

Thank you Flex Team! Great and awesome job!!! Flex is going to rise up and rule over the internet again! Flex is the best we all know it deep in our heart.

Posted by Joel on August 13, 2013 at 02:47 AM GMT #

hummm... interesting... didn't find any issue while upgrading 4.9 to 4.10. I really loves new components too

Posted by sanjeev rajput on August 13, 2013 at 07:01 AM GMT #

Is there a list of new spark components somewhere?

Posted by Eric on August 13, 2013 at 12:01 PM GMT #

Congrats. Great job.

Posted by Brian Zhang on August 13, 2013 at 06:21 PM GMT #

The experimental classes look promising, however I get compiler warnings: Cannot resolve namespace qualified type 'BorderDataNavigator' in CSS selector 'BorderDataNavigator' and The style 'cornerRadius' is only supported by type 'spark.components.ButtonBarButton' with the theme(s) 'spark'.

Posted by Daniel on August 14, 2013 at 07:18 AM GMT #

Good Work Apache Flex Team.

Posted by Tahir Alvi on August 14, 2013 at 08:43 AM GMT #

Awesome work! Thanks, you guys rock!

Posted by Gary Benade on August 15, 2013 at 11:13 AM GMT #

Thanks for update, but i was searching what are the 15 spark new components? thanks

Posted by Juca on August 15, 2013 at 01:55 PM GMT #

Interesting. I'm still on 4.0. Is this a free upgrade?

Posted by Jerry62712 on August 15, 2013 at 02:39 PM GMT #

Great News & Congratulation for release. looking forward for more releases.

Posted by Prashant on August 16, 2013 at 09:02 AM GMT #

hi , I create A tab Application using flex 4.10 sdk but in datagrid skining not supporated plz tell me how i use skining

Posted by Raghav kulshrestha on August 16, 2013 at 10:18 AM GMT #

hi , I create A tab Application using flex 4.10 sdk but in datagrid skining not supporated plz tell me how i use skining

Posted by Raghav kulshrestha on August 16, 2013 at 10:19 AM GMT #

Where do we get release notes, i.e. new UI components, details on new features?

Posted by David on August 18, 2013 at 02:59 PM GMT #

Thanks everybody for your support of Apache Flex! To answer a few questions -- Apache Flex is open-source and will remain free under its new Apache 2.0 License. For a specific list of new components and a list of new features, check out the RELEASE_NOTES : http://apache.osuosl.org/flex/4.10.0/RELEASE_NOTES

Posted by Nick Kwiatkowski on August 18, 2013 at 03:46 PM GMT #

hi, i wanna to know that any spark chart control now available or not because mx chart control is very loaded for mobile device. And Any chart control for mobile and tab application which performance is fast when application is running on device. using in new apache 4.10.0 sdk

Posted by Raghav Kulshrestha on August 20, 2013 at 04:56 AM GMT #

GOOD WORK GUYS ! Your work is just amazing !

Posted by Yordan Yanakiev on August 20, 2013 at 07:49 AM GMT #

Congrats guys.. Great job..

Posted by madhusudan on August 20, 2013 at 02:55 PM GMT #

Great Job Team

Posted by Anand Ganesan on August 21, 2013 at 04:53 AM GMT #

Hi,Congrats to the Team !..Keep up the good work.

Posted by Gomathipramarajan M on August 21, 2013 at 05:44 AM GMT #

Hm... Can't find out how to use the new Menu component... The documentation on http://flex.apache.org/asdoc/index.html doesn't have any sample for this component... Is it a Menu we can use doing show() or hide() where we want or it must be related to a MenuBar ?

Posted by KnuX on August 22, 2013 at 03:39 PM GMT #

Great news, We really require a flex version as open source, Keep up the good work गूगल उपग्रह नक्शे भारत

Posted by bombay on August 22, 2013 at 05:34 PM GMT #

hi i am using apache-flex 4.10.0 sdk but i face some problem with new spark component Navigator in my Application.Plz tell me How i possition set of Navigator like bottom,left,right

Posted by Raghav kulshrestha on August 23, 2013 at 06:12 AM GMT #

Daniel // modify your `.actionScriptProperties` file. `...</compiler><applications>...` modify to `... </compiler><theme themeIsDefault="false" themeIsSDK="true" themeLocation="${SDK_THEMES_DIR}/frameworks/themes/Spark"/><applications>...`

Posted by Seoyeon Lee on August 23, 2013 at 12:53 PM GMT #

I am so happy that 4.10 comes with support for high end smartphone resolution (480 dpi). I am the developer of cross platform application for businesses and i was panicked like a week ago while testing on samsung galaxy s4. i hope that more awesome stuff will soon come.

Posted by Leo Kanellopoulos on August 25, 2013 at 09:08 PM GMT #

Thumbs up to the dev team behind Apache Flex. I can't tell you how I'm pleased to see Flex is still maintained by such a valuable community.

Posted by Jean-Michel on August 26, 2013 at 03:04 PM GMT #

thank you for the contributors and for the new version, html5/js = kiddiescript, flex = enterprise

Posted by reisan lukelog on August 28, 2013 at 04:52 PM GMT #

Yeah. Keep going. Congratulations to you all. Flex is still the best multi-platform frontend technology around!

Posted by Chuckson on August 29, 2013 at 07:04 PM GMT #

That's great news that in this release replace the old MX based components with new spark based architecture. Could you enlist all of them ? those replaced.

Posted by Tahir on August 31, 2013 at 05:48 PM GMT #

Great Job Apache Flex Team. Thanks...!!!

Posted by Gajanan on September 04, 2013 at 02:03 AM GMT #


Posted by MyThink on September 05, 2013 at 01:34 AM GMT #

Congratulation for release 4.10, I have used it, very-2 Thanks to all team members...

Posted by Vinitkar Tripathi on September 17, 2013 at 12:29 PM GMT #

Well done team!!!

Posted by Nimrod Sion on September 17, 2013 at 06:32 PM GMT #

I love you guys. You all rock!!!

Posted by Lakunta Tillis on September 20, 2013 at 03:22 PM GMT #

A WYSWYG should be the first priority for this project to get back users which stopped using it from the Adobe decision to don't contribute also with that component.

Posted by eng. Andrea Leganza on September 28, 2013 at 08:08 AM GMT #

I just want to say, well done. Flex is my baby so any effort to improve and keep it going is very much welcome and appreciated.

Posted by Kwaku Antwi on October 03, 2013 at 01:19 AM GMT #

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