Joomla!
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| Joomla! | |
|---|---|
 | |
| Name | Joomla! |
| Caption | Joomla! administrative interface |
| Developer | Open Source Matters |
| Initial release | 2005 |
| Latest release | 4.x (ongoing) |
| Programming language | PHP |
| Operating system | Cross-platform |
| Genre | Content management system |
| License | GNU General Public License v2+ |
Joomla! is a free and open-source content management system designed to build websites and online applications. It originated from a fork of a project and evolved through international collaboration among developers, volunteers, and organizations. The platform emphasizes extensibility through modules, plugins, and templates, and it is employed by individuals, non-profits, corporations, and governments for sites ranging from blogs to complex portals.
History
Joomla! emerged in 2005 following a split from the codebase of a predecessor project, involving key figures from the predecessor community, contributors from Open Source Matters, and broader participation from developers across Europe, North America, and Asia. Early governance formed around a founding team that included contributors with prior involvement in projects associated with PHP, MySQL, and repositories hosted on platforms influenced by SourceForge. Over subsequent years, leadership and stewardship shifted through elected boards, with oversight from Open Source Matters and collaboration with numerous non-profit and commercial organizations such as agencies that had implemented sites for United Nations agencies, municipal governments like City of London projects, and educational institutions like University of Oxford departments. Major community events—meetups and conferences—took place in cities such as Paris, New York City, and Tokyo, fostering translation efforts, extension marketplaces, and localized documentation.
Features
The platform provides a feature set tailored for site builders, content managers, and developers. Core capabilities include an article and category management system used by publishers at outlets similar to BBC News, media handling tools employed in workflows at organizations akin to Getty Images clients, workflow and access controls comparable to systems used by European Commission portals, and multilingual support that parallels efforts in institutions such as United Nations Educational, Scientific and Cultural Organization. Extensibility is provided via extensions categorized as components, modules, plugins, templates, and languages—an approach similar to ecosystems cultivated by projects like WordPress and Drupal. Additional features include search engine optimization settings used by digital agencies serving clients like Google partners, caching mechanisms comparable to solutions from Varnish adopters, and integrations with third-party identity providers such as OAuth and enterprise systems like those used by Microsoft deployments.
Architecture and Technology
The software is written primarily in PHP and typically uses MySQL or compatible database engines such as MariaDB. It follows a modular architecture separating presentation and business logic through template systems and extension APIs inspired by established patterns in frameworks like Zend Framework and concepts from Model–view–controller implementations used by projects such as Symfony. The platform supports RESTful interfaces and JSON responses enabling headless CMS patterns adopted by organizations like Spotify and Airbnb for content APIs. Front-end rendering leverages HTML, CSS, and JavaScript ecosystems including libraries similar to jQuery and build tools common in Node.js toolchains. The installer and update mechanisms are managed by an administrative web interface influenced by package-management ideas from Composer and distribution practices from GitHub workflows.
Releases and Versioning
Release history follows numbered major, minor, and patch conventions used across open-source software, with notable milestones introducing long-term support (LTS) branches comparable to Ubuntu LTS releases and major rewrites addressing compatibility with modern PHP versions akin to migrations seen in Drupal 8. Upgrade paths have been provided through migration scripts and tooling paralleling procedures from WordPress major releases. Version announcements have been coordinated with security advisories and migration guides, often communicated via channels frequented by contributors, including mailing lists associated with Open Source Matters and social events at conferences such as JoomlaWorld and regional user group meetings.
Community and Governance
The ecosystem is supported by a global volunteer community, extension developers, designers, and corporate sponsors. Governance is organized through a legal entity and elected volunteer bodies, with code contribution facilitated by distributed version control systems and review processes modeled on workflows popularized by GitHub and GitLab. Local user groups and regional events mirror grassroots networks like those that organize around Linux Foundation projects and Apache Software Foundation communities. Training, certification, and documentation efforts have involved partnerships with consulting firms and educational providers comparable to vendors that offer courses for Adobe and Microsoft products.
Security and Criticism
Security hardening, patching, and advisory coordination are ongoing priorities, with responses to vulnerabilities comparable to incident handling procedures at organizations such as CERT Coordination Center and disclosure timelines seen in other CMS ecosystems like WordPress plugin ecosystems. Criticism has focused on extension quality variability, upgrade complexity reminiscent of concerns voiced about Drupal migrations, and the potential for misconfiguration in shared hosting environments similar to issues discussed by OWASP. The project has addressed these concerns through tightened coding standards, security update tooling, and community-driven audits involving independent auditors and professional security firms analogous to those that review enterprise open-source stacks.