It is released under version 2 of the Apache License. OvervieweditFlex uses MXML to define UI layout and other non visual static aspects, Action. Script to address dynamic aspects and as code behind, and requires Adobe AIR or Flash Player at runtime to run the application. VersionseditMacromedia Flex 1. Macromedia targeted the enterprise application development market with its initial releases of Flex 1. The company offered the technology at a price around US1. CPU. 4 Required for deployment, the Java EE application server compiled MXML and Action. Script on the fly into Flash applications binary SWF files. Update Zend Framework In Zend Studio Debugging' title='Update Zend Framework In Zend Studio Debugging' />Each server license included 5 licenses for the Flex Builder IDE. Adobe Flex 2editAdobe significantly changed the licensing model for the Flex product line with the release of Flex 2. The core Flex 2 SDK, consisting of the command line compilers and the complete class library of user interface components and utilities, was made available as a free download. Complete Flex applications can be built and deployed with only the Flex 2 SDK, which contains no limitations or restrictions compared to the same SDK included with the Flex Builder IDE. Adobe based the new version of Flex Builder on the open source Eclipse platform. The company released two versions of Flex Builder 2, Standard and Professional. The Professional version includes the Flex Charting Components library. Enterprise oriented services remain available through Flex Data Services 2. This server component provides data synchronization, data push, publish subscribe and automated testing. Unlike Flex 1. 0 and 1. Flex Data Services is not required for the deployment of Flex applications. Coinciding with the release of Flex 2, Adobe introduced a new version of the Action. Script programming language, known as Actionscript 3, reflecting the latest ECMAScript specification. The use of Action. Script 3 and Flex 2 requires version 9 or later of the Flash Player runtime. Flash Player 9 incorporated a new and more robust virtual machine for running the new Action. Script 3. Flex was the first Macromedia product to be re branded under the Adobe name. Adobe Flex 3editOn April 2. Adobe announced their intent to release the Flex 3 SDK which excludes the Flex Builder IDE and the Live. Cycle Data Services under the terms of the Mozilla Public License. Adobe released the first beta of Flex 3, codenamed Moxie, in June 2. Major enhancements include integration with the new versions of Adobes Creative Suite products, support for AIR Adobes new desktop application runtime, and the addition of profiling and refactoring tools to the Flex Builder IDE. Adobe Flash Builder and Flex 4editAdobe released Flex 4. Gumbo on March 2. The Flex 4 development environment is called Adobe Flash Builder,7 formerly known as Adobe Flex Builder. Some themes that have been mentioned by Adobe and have been incorporated into Flex 4 are as follows Design in Mind The framework has been designed for continuous collaboration between designers and developers. Accelerated Development Be able to take application development from conception to reality quickly. Horizontal Platform Improvements Compiler performance, language enhancements, Bi. Directional components, enhanced text Flex 4 includes the new Text Layout Framework8. Full Support for Adobe Flash Player 1. Broadening Horizons Finding ways to make a framework lighter, supporting more deployment runtimes, runtime MXML. Simpler skinning than the previous versions. Integration with Adobe Flash Catalyst. Custom templates. Flash Builder is available in two versions Standard and Premium,9 the premium adds the following features Testing tools. Memory and performance profilers. An automated testing harness to connect to all the leading testing tools. Flex. Unit supportcommand line build capability. Adobe Flash Builder 4. Flex 4. 5editMay 3, 2. Adobe shipped Flash Builder 4. Flex 4. 5 SDK Only which delivers full support for building Flex and Action. Script applications for Google Android, as well as support for building Action. Script applications for Black. Berry Tablet OS and Apple i. OS. An update to Flash Builder 4. Flex 4. 5 adds support for building Flex applications for Black. Berry Tablet OS and Apple i. OS. Flex 4. 5 SDK delivers many new components and capabilities, along with integrated support in Flash Builder 4. Flash Catalyst CS 5. With the Adobe Flex 4. SDK which is governed by three main goals Allow developers to use Flex for multiscreen application development. Further mature the Spark skinning architecture and component set which was introduced in Flex 4. Adobe Flex 4. 6. 0editIn November 2. Adobe released Flex SDK update 4. More Spark mobile components including Split. View. Navigator, Callout. Button, Callout, Spinner. List, Date. Spinner, and Toggle. Switch. Better performance. Updated platform support. Enhanced Tooling Flash Builder 4. Text Enhancements. Apache Flex 4. 8. Jul 2. 5, 2. 01. 2, Apache Flex community releases Flex 4. Adobe Flex 4. 6. 0. This is the first release under the incubator of the Apache Software Foundation and represents the initial donation of Adobe Flex 4. Adobe System Inc. Differences and highlights include Flex trademark issues are largely cleared up. Bug tracking issue tracking system JIRA transferred from the Adobe bug tracker to Apache bug tracker. Mustela test suite is donated to Apache. Apache Flex 4. 9. Jan 1. 1, 2. 01. 3, Apache Flex community releases Flex 4. This is the first release since Apache Flex became a top level project of the Apache Software Foundation. Differences and highlights include New locales for Apache Flex including Australian, British, Canadian, Greek, Switzerland German and Portuguese. Apache Flex SDK can be compiled for any version of the Flash Player from 1. New Post. Code. Formatter and Post. Code. Validator classes for international postcode formatting and validation. New Vector. List and Vector. Collection classes for lists and collections of vectors. New version of the TLF Text Layout Framework, the TLF 3. Apache Flex donation. Can use Java 7 to compile SDK see README for instructionsMany improvements and updates to Mustella tests. An SDK installer has also been created and is the recommended way of installing the Apache Flex SDK in an IDEVarious important bug fixes. Apache Flex 4. 9. Feb 2. 8, 2. 01. 3, Apache Flex community releases Flex 4. This was a minor update to 4. Apache Flex 4. 1. Aug 6, 2. 01. 3, Apache Flex community releases Flex 4. Differences and highlights include Support for latest versions of Flash Player up to 1. AIR runtimes up to 3. Improved support for older Flash Player versions down to 1. Linux support. 15 new Spark components. Advanced telemetry support. Improved international support for dates.