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Joomla 3.9.10 Release

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Joomla 3.9.10

Joomla 3.9.10 is now available. This is a bug fix release for the 3.x series of Joomla which addresses one bug introduced into 3.9.9, affecting template styles of multilingual web sites.

What's in 3.9.10?

Joomla 3.9.10 is fixing one bug introduced into Joomla 3.9.9 which affects the template styles of multilingual sites and results in lost data.

Please read this JDocs FAQ page to learn more about this issue and its fix.

IMPORTANT information for users who have already updated to 3.9.9 and faced this issue.
Due to a bad sql update, the template style mapping to content languages has been lost. Unfortunately, this is an unrecoverable error.
You must either:

  • Restore the data manually by upgrading to Joomla 3.9.10 and then manually editing each template style and using the "Default" Field to the language required 
  • Or restore a 3.9.8 backup of your sites to recover the data before updating to Joomla 3.9.10.


We would like to take a moment to apologise to our users.
Whilst we understand that a release which introduces a major bug is always serious - in this case the bug involved actual data loss from sites, this is a red flag for us. We are going to pause and look at how we can improve our release and testing strategies and report back to our users when this is complete, detailing how we aim to improve in the future.

At this early point though we can confirm that this bug was introduced during the development of 3.9.9 and unfortunately was not picked up in the week between the 3.9.9 Release Candidate and the 3.9.9 stable release.

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New Installations

Download Joomla 3.9.10
English (UK), 3.9.10 Full Package

New installation instructions and technical requirements

Upgrade Packages

Upgrade Packages
Joomla 3 upgrade packages

Note: Please read the update instructions before updating.
Remember… Please clear your browser's cache after updating.
Found a bug? Report it on the Joomla Issue Tracker.
Questions? See the documentation wiki for FAQ’s regarding the 3.9.10 release.

Become a Tester

In order to provide a better quality assurance for stable releases, we are looking for more volunteers to test the Release Candidates. No special skills are needed to become a tester, you just need to be able to install the pre-release and follow the reporting instructions.
Feel free to contact the Joomla Bug Squad or the CMS Release Team.

A Big Thank you

A large thank you goes to Richard Fath who worked until late on this patch. The project very much appreciates the hard work you put into this release. A big thank you must also go to those who tested the fix.

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