Symfony

Symfony is a free and open-source PHP web application framework and a set of reusable PHP component libraries. It was published as free software on October 18, 2005, and released under the MIT License.

Goal Symfony aims to speed up the creation and maintenance of web applications and to replace repetitive coding tasks. It's also aimed at building robust applications in an enterprise context, and aims to give developers full control over the configuration: from the directory structure to third-party libraries, almost everything can be customized. To match enterprise development guidelines, Symfony is bundled with additional tools to help developers test, debug and document projects.

Symfony has a low performance overhead used with a bytecode cache.

Technical Symfony was heavily inspired by the Spring Framework.High Performance PHP Framework for Web Development - Symfony. Symfony-reloaded.org. Retrieved on 2014-05-30.

It makes heavy use of existing PHP open-source projects as part of the framework, including: PDO database abstraction layer (1.1, with Doctrine and Propel 1.3) PHPUnit, a unit testing framework Twig, a templating engine

Symfony also makes use of its own components, which are freely available on the Symfony Components site for various other projects: Symfony YAML, a YAML parser based upon Spyc Symfony Event Dispatcher Symfony Dependency Injector, a dependency injector Symfony Templating, a templating engine

Sponsors Symfony is sponsored by SensioLabs, a French software developer and professional services provider.Learn Symfony: A Beginner's Tutorial The first name was Sensio Framework,Symfony framework forum: General discussion => New symfony tagline brainstorming and all classes were therefore prefixed with sf. Later, when it was decided to launch it as an open-source framework, the brainstorming resulted in the name symfony (renamed to Symfony from version 2 onward), which matched the existing theme and class name prefixes.Comments by Sensio owner

Real-world usage Symfony is used by the open-source Q&A service Askeet and many more applications, including Delicious website.Symfony Blog - Delicious Preview built with symfony At one time it was used for 20 million users of Yahoo! Bookmarks.Symfony Blog - Yahoo! Bookmarks uses symfony As of February 2009, Dailymotion.com has ported part of its code to use Symfony, and is continuing the transition.Symfony Blog - Dailymotion, powered by symfony Symfony is used by OpenSky, a social shopping platform, and the Symfony framework is also used by the massively multiplayer online browser game eRepublik, and by the content management framework eZ Publish in version 5.Symfony2 meets eZ Publish 5. Symfony (2012-07-02). Retrieved on 2014-05-30. Drupal 8, phpBB and a number of other large applications have incorporated components of Symfony.Drupal (Projects using Symfony). Retrieved on 2015-12-01. Symfony is also used by Meetic, one of the largest online dating platforms in the world, on most of its websites for implementing its business logic in the backend. Symfony components are also used in other web application frameworks including Laravel, which is another full-stack framework, and Silex, which is a microframework.Projects using Symfony

Vogue Paris's website is also built on the Symfony framework

Symfony's own website has a comprehensive list of projects using Symfony and a showcase of websites built with Symfony.

Releases

Symfony manages its releases through a time-based model; a new Symfony release comes out every six months: one in May and one in November. This release process has been adopted as of Symfony 2.2, and all the "rules" explained in this document must be strictly followed as of Symfony 2.4.

The standard version of Symfony is maintained for eight months, whereas long-term support (LTS) versions are supported for three years. A new LTS release is published biennially.symfony-docs/contributing/community/releases.rst at 4cd6dc2825924c9569621bf749f168a7ba2a235d · symfony/symfony-docs · GitHub. Github.com. Retrieved on 2016-03-16.

The latest stable release is version 7.3 and current LTS release is version 6.4.Symfony releases as of 2025-06-17.

Color Meaning Red Release no longer supported Amber security fixes only Green Release still supported Blue Future release

Version Release date Support PHP version End of maintenance Notes 1.0 January 2007 Three years ≥ 5.0 January 2010 1.1 June 2008 One year ≥ 5.1 June 2009 Security-related patches were applied until June 2010 1.2 December 2008 One year ≥ 5.2 November 2009 1.3 November 2009 One year ≥ 5.2.4 November 2010 1.4 November 2009 Three years ≥ 5.2.4 November 2012 LTS version. 1.4 is identical to 1.3, but it does not support the 1.3 deprecated features.Symfony Blog - About symfony 1.3 and 1.4 2.0Symfony blog - Why will Symfony 2.0 finally use PHP 5.3? July 2011Symfony blog - Symfony2 release ≥ 5.3.2 March 2013 Last 2.0.x release was Symfony 2.0.252.0.23 released. Symfony (2013-03-20). Retrieved on 2014-05-30. 2.1Symfony 2.1.0 released September 2012 Eight months ≥ 5.3.3 June 2013 More components are part of the stable API. 2.2 March 2013 Eight months ≥ 5.3.3 November 2013 Various new features.2.2.0. Symfony (2013-03-01). Retrieved on 2014-05-30. 2.3 June 2013 Three years ≥ 5.3.3 May 2016 The first LTS release, only three months development, normally six months.2.3.0, the first LTS, is now available. Symfony (2013-06-03). Retrieved on 2014-05-30. 2.4 November 2013 Eight months ≥ 5.3.3 July 2014 The first 2.x branch release with complete backwards compatibility.2.4.0 released. Symfony (2013-12-03). Retrieved on 2014-05-30. 2.5 May 2014 Eight months ≥ 5.3.3 January 2015 2.6 November 2014 Eight months ≥ 5.3.3 July 2015 2.7 May 2015 Three years ≥ 5.3.9 May 2018 LTS release. 2.8 November 2015 Three years ≥ 5.3.9 November 2018 LTS release. 3.0 November 2015 Eight months ≥ 5.5.9 July 2016 3.1 May 2016 Eight months ≥ 5.5.9 January 2017 3.2 November 2016 Eight months ≥ 5.5.9 July 2017 3.3 June 2017 Eight months≥ 5.5.9 January 2018 3.4 November 2017 Three years≥ 5.5.9 November 2020 LTS release. 4.0 November 2017 Eight months ≥ 7.1.3Bump minimum version to PHP 7.1 for Symfony 4 July 2018 Dropping support for HHVMSymfony 4: End of HHVM support 4.1 May 2018 Eight months ≥ 7.1.3 January 2019 4.2 November 2018 Eight months ≥ 7.1.3 July 2019 4.3 May 2019 Eight months ≥ 7.1.3 January 2020 4.4 November 2019 Three years ≥ 7.1.3 November 2022 LTS release. 5.0 November 2019 Eight months ≥ 7.2.5 July 2020 Live released by Fabien Potencier during his Keynote at SymfonyCon Amsterdam (11/21/19). 5.1 May 2020 Eight months ≥ 7.2.5 January 2021 5.2 November 2020 Eight months ≥ 7.2.5 July 2021 5.3 May 2021 Eight months ≥ 7.2.5 January 2022 Stable release. 5.4 November 2021 Three years ≥ 7.2.5 November 2024 LTS release; security releases available until February 2029 6.0 November 2021 Eight months ≥ 8.0.2 January 2023 Maintenance period extended by six months. 6.1 May 2022 Eight months ≥ 8.1 January 2023 6.2 November 2022 Eight months ≥ 8.1 July 2023 6.3 May 2023Eight months ≥ 8.1 January 2024 6.4 November 2023Three years ≥ 8.1 November 2027 LTS release.7.0 November 2023Eight months ≥ 8.2 July 2024 7.1 May 2024Eight months ≥ 8.2 January 2025 7.2 November 2024Eight months ≥ 8.2 July 2025 7.3 May 2025Eight months ≥ 8.2 January 2026 7.4November 2025Three years≥ 8.2November 2028LTS release; security releases available until November 20298.0November 2025Eight months≥ 8.4July 20268.1May 2026Eight months≥ 8.4January 2027Under development. Scheduled release date May 2026

Symfony

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