Before you begin, it is essential you know what version of Joomla! you are using. This is especially true if you are changing a major version. If you are already confused or don't know what a major version is, you should read more about the release and support cycle of Joomla CMS Versions. Joomla is released with the following version designations, [major].[minor].[maintenance]. For example, version 3.1.5 is Joomla major version 3, minor 1, and maintenance release 5.

Since version 1.7, the updating and upgrading of Joomla are built into the administration interface as a component. The terms updating and upgrading might be used interchangeably. In many ways, updating and upgrading are alike since Joomla 1.7, but you will need to pay very close attention to the details. To help define them better, it is recommended you use the term migration which would be defined as a major.minor(2.5) to a different major.minor(3.1) version.

Simple Updating

Updates are an easy update to the next maintenance release, for example version 2.5.13 to version 2.5.14. This would be a maintenance release of the 2.5 version.

Updating your version of Joomla CMS 3.3
Updating your version of Joomla CMS 2.5


Migration 1.5 to 3.x

Migration 2.5 to 3.x

Other Migration Considerations

Above all, realise without the correct preparation and knowledge, you may break your 'live' site.


Upgrading to J3.1

Upgrading 1.6.5, 1.6.6, 1.7.x, 2.5.x to 3.x is covered by the following page.

Upgrading to Joomla CMS version 3.3

Upgrading to J2.5

Upgrading 1.6.5, 1.6.6, 1.7.x, to 2.5 is covered by the following page.

Upgrading to Joomla CMS version 2.5

Upgrading from 1.6.x(not 1.6.5 or 1.6.6 Versions)

You must upgrade to Version 1.7 first if you are on version of 1.6 below the maintenance release of 1.6.5.

Upgrading Version 1.6.5 or 1.6.6 to Version 1.7

Migrating (Version 1.5)

Migrating from Joomla 1.5 to Joomla 2.5 - Legacy how to
License: Joomla! Electronic Documentation License
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