Technical requirements

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Revision as of 15:40, 28 May 2014 by Hiawatha (Talk | contribs)

More details can be found on

Joomla 3.x Joomla 3.x

Software Recommended Minimum
PHP (Magic Quotes GPC off) 5.4 + 5.3.10 +
Supported Databases:
MySQL[1] (InnoDB support required) 5.1 + 5.1 +
MSSQL 10.50.1600.1 + 10.50.1600.1 +
PostgreSQL 8.3.18 + 8.3.18 +
Supported Web Servers:
Apache(with mod_mysql, mod_xml, and mod_zlib)[2][3] 2.x+ 2.x+
Hiawatha (with UrlToolkit support) latest 8.0
Nginx 1.1 1.0
Microsoft IIS 7 7

Joomla 2.5.x Joomla 2.5

Software Recommended Minimum
PHP 5.4+ 5.2.4+
Supported Databases:
MySQL[1] 5.0.4+ 5.0.4+
Supported Web Servers:
Apache (with mod_mysql, mod_xml, and mod_zlib)[2][3] 2.x+ 2.x+
Nginx 1.1 1.0
Microsoft IIS[4] 7 7

Joomla 1.5.x Joomla 1.5

Software Recommended Minimum Not supported[5]
PHP[6] 5.2 4.3.10 5.4+
Supported Databases:
MySQL[1] 4.1.x+ 3.23
Supported Web Servers:
Apache (with mod_mysql, mod_xml, and mod_zlib)[2][3] 2.x+ 1.3
Microsoft IIS[7] 7 6


  1. 1.0 1.1 1.2 Joomla is not yet compatible with MySQL 6.x.
  2. 2.0 2.1 2.2 In order to use SEF URLs, you will need to have the Apache mod_rewrite extension installed.
  3. 3.0 3.1 3.2 The mod_suphp extension or mod_fcgid extension is recommended to enable Joomla to upload and execute files using secure file permissions.
  4. For Microsoft IIS you need MySQL 5.1 or newer.
  5. The Joomla! Project has not tested support for versions of software listed in this column. The Joomla! CMS may function properly on these versions of software, but official support is not provided.
  6. Do not use PHP 4.3.9, 4.4.2 or 5.0.4. These releases have known bugs that will interfere with installation. Zend Optimizer 2.5.10 for PHP 4.4.x also has serious bugs and you should ask your host to upgrade to a newer version. Joomla! versions 1.5.15 + are compatible with PHP 5.3. Note that the OpenID library is not yet compatible with PHP 5.3.
  7. For Microsoft IIS (depending on your setup) you may need the following: For further assistance using Microsoft IIS, visit the Joomla IIS forum.