Joomla 6.0 is here – a big step for the CMS of the future

With the release of Joomla 6.0 “Kuimarisha” and Joomla 5.4 “Kutegemea”, the Joomla project is sending a clear signal for stability, security and future-readiness. After more than a year of development, the new major version brings numerous improvements for developers, administrators and agencies that make the CMS even more modern, faster and easier to maintain.

A stronger foundation for professional websites

Joomla 6.0 introduces one of the most important innovations of recent years: automatic core updates. This means that security and maintenance updates will in future be installed without manual intervention – safely, in a controlled way and specific to each version. For agencies, this means less effort in day-to-day operations and greater planning certainty for long-term projects.

The default template Cassiopeia has also been significantly extended. With a new child template system, colours, font sizes and spacing can be adjusted directly in the backend without having to write your own CSS customisations. This saves time and makes corporate design adjustments easier, especially for multi-site set-ups or client projects with similar layouts.

More control over content

One of the community's most requested features is now a reality: Joomla 6 supports extended versioning, which now also covers custom fields. This means that changes to structured content can be tracked even more precisely and selectively restored when needed.

Two handy new field types have also been added – Notes and Numbers. While the Notes field serves as an internal comment field within the administration area, the Numbers field allows numerical input with optional currency or percentage formatting. These small but clever additions improve the editorial workflow considerably.

A smooth transition thanks to the compatibility plugin

If you are still working with Joomla 5, you can breathe a sigh of relief. The plugin “Behaviour – Backward Compatibility 6”, included in Joomla 5.4, ensures a smooth transition. It keeps older extensions and templates running while developers adapt their projects to the new Joomla 6 APIs. This allows the switch to be made step by step without putting live websites at risk.

More performance, modern standards

A lot has changed under the bonnet, too. The system runs noticeably faster, thanks in part to improved caching for language files and the update of the editor to TinyMCE version 8. Joomla also looks more polished: both the backend template Atum and the frontend template Cassiopeia now have CSS transitions that make for a smoother user experience.

For developers, Joomla 6 offers new Date and DateTime field types, optimised helper functions and a clearer separation between legacy code and modern framework code. The aim is a stable, future-proof foundation for upcoming releases.

What agencies should do now

For agencies, Joomla 6 is a strategically important step. The move from version 5.4 to 6.0 is not a classic migration process but a regular upgrade. Nevertheless, extensions, templates and custom modifications should be checked in a test environment beforehand.

We recommend taking stock of all client projects at an early stage and analysing them for compatibility. The new compatibility plugin is a great help here, as it keeps many existing installations running without major changes.

In the long term, Joomla 6 will make maintaining and scaling websites easier. This opens up new business models for agencies – such as managed Joomla packages, automated maintenance services or upgrade projects that can be planned and delivered efficiently.

Conclusion

Joomla 6.0 marks the start of a new phase in the development of the CMS. The focus is clearly on stability, automation and modern web development. For professional Joomla agencies, this means less manual routine work and more time for strategic and creative tasks.

Anyone switching to Joomla 6 now will not only benefit from technical improvements but will also be well positioned for the coming years of Joomla's evolution.