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Joomla 6 migration
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On 14 October 2025 Joomla 6.0 "Kuimarisha" came out, together with Joomla 5.4 "Kutegemea". It is the current major version – and the last part of this series. For this review we installed Joomla 6.0.4 of 31 March 2026, the last version of the 6.0 line, with the blog sample data and photographed it. At the end the backends and websites of all seven parts stand side by side: 20 years of Joomla at a glance.
| Released | 14 October 2025 (Joomla 6.0.0 "Kuimarisha", together with Joomla 5.4) |
|---|---|
| Last version of 6.0 | 6.0.4 of 31 March 2026 (5 versions) |
| Joomla 6 so far | 11 versions up to 6.2.0 of 13 October 2026 |
| Support (planned) | bug fixes until 17 October 2028, security updates until 16 October 2029 – more in the post End of Life: Joomla 6.x |
| Requirements | PHP from 8.3 |
| Templates | Cassiopeia and Cassiopeia Extended (website), Atum (backend) |
| Technology | Bootstrap 5.3.8, Font Awesome 6.7, TinyMCE 8.1 |
| Included in the installation | 251 extensions, 155 of them plugins; 12 guided tours |
What Joomla 6 brings
According to the Joomla 6.0 announcement, the most important new feature is the automatic update: Joomla 5.1 brought secure updates following the TUF method, and with 5.4 and 6.0 Joomla updates itself for minor releases. Then there are the child template "Cassiopeia Extended" with more colours and font sizes without a CSS file of your own, versioning that now also stores the values of custom fields, two new field types ("Note" and "Number"), smooth transitions between pages in Atum and Cassiopeia, TinyMCE 8 and a cache for language files.
For existing websites the same applies as with Joomla 5: the move from 5.4 to 6.0 is an upgrade, not a migration. The "Behaviour – Backward Compatibility 6" plugin keeps many older extensions running.
The installation
The installer has a new last step: it explains the automatic updates – the website registers with the Joomla project for them and sends its URL, PHP, database and Joomla version and the server's operating system – and offers a button to switch them off.
The website: Cassiopeia
The backend
New in Joomla 6
Extensions and system
20 years of Joomla: the backend
From top left to bottom right: the control panel of every major version, as we installed it for this series.
20 years of Joomla: the website
And the freshly installed website with the default template of each version – from Solarflare II via Milkyway, Beez2 and Protostar to Cassiopeia, which has been there since Joomla 4.
Joomla 6 so far
According to the Joomla downloads – the newest version, Joomla 6.2, came out on 13 October 2026 according to the Joomla 6.2 announcement:
| Version | First release | Last release | Versions |
|---|---|---|---|
| Joomla 6.0 | 14 Oct 2025 | 6.0.4 · 31 Mar 2026 | 5 |
| Joomla 6.1 | 14 Apr 2026 | 6.1.4 · 29 Sep 2026 | 5 |
| Joomla 6.2 | 13 Oct 2026 | 6.2.0 · 13 Oct 2026 | 1 |
All 5 versions of Joomla 6.0
- 6.0.014 Oct 2025
- 6.0.125 Nov 2025
- 6.0.26 Jan 2026
- 6.0.317 Feb 2026
- 6.0.431 Mar 2026
The whole series
With this the series "Joomla history" is complete: seven major versions, each really installed and photographed. The other parts:
- Review: Joomla 1.0 – 2005
- Review: Joomla 1.5 – 2008
- Review: Joomla 2.5 – 2012
- Review: Joomla 3.0 – 2012
- Review: Joomla 4.0 – 2021
- Review: Joomla 5.0 – 2023
We look after your Joomla 6
Updates, security and backups – with a maintenance contract we make sure your website stays up to date. If you still run an older version, we bring it to Joomla 6.
See the maintenance contractHow we did it: Joomla 6.0.4 in the original package from downloads.joomla.org, locally in Docker with PHP 8.4 and MySQL 8.4, reachable only on our own machine, files unchanged, with the blog sample data. We only opened the new "Number" field type, we did not save it. Atum shows the dark mode when the system is set to dark. The pictures in the gallery come from the installations of the other parts.
All parts of the series "Joomla history"
