Joomla at 21: Finding the Golden Ratio in Our History

There is something rather satisfying about Joomla turning 21.

Twenty-one is, after all, a Fibonacci number. For those whose school maths has become a little hazy, the Fibonacci sequence begins: 1, 1, 2, 3, 5, 8, 13, 21…

Each number is created by adding the previous two together. Simple enough. But buried within that sequence is something rather beautiful. As the numbers get larger, dividing one by the previous number gets closer and closer to 1.6180339887… — Phi, or the Golden Ratio.

Designers know it well. Artists and architects have been fascinated by it for centuries. The Golden Ratio crops up in discussions of proportion, typography, page layout, architecture and the patterns we see in nature. Whether every claimed appearance of it really deserves to be there is another matter — designers are quite capable of finding a Golden Ratio in almost anything if given enough coffee and tracing paper. I first learned about Phi at art school and have used it ever since.

When I realised Joomla was about to celebrate its 21st anniversary, I thought it would be fun to apply the Fibonacci sequence to Joomla’s history. Rather pleasingly this has worked better than I’d hoped to buckle up and brace yourself for my alternative timeline of Joomla through eight special number. 

1 — 2005: A fork in the road

Every sequence has to start somewhere.

Ours starts on 17 August 2005, when Andrew Eddie, speaking on behalf of the Mambo development team, published a letter to the community announcing their decision to separate from the Mambo project. What followed happened remarkably quickly.

The community rallied around the developers. Open Source Matters was established. A new project needed a new identity and, on 1 September, the name Joomla! was revealed — derived from Jumla, a Swahili word generally translated as “all together” or “as a whole”.

Then came the software itself; Joomla 1.0 arrived in September 2005, based on Mambo 4.5.2.3 but carrying a new name, a new project and, most importantly, a new sense of direction.

Joomla began because a group of people made a decision about what they believed an open-source project should be. The software mattered enormously, of course, but the principles behind it mattered just as much.

And there is something pleasingly appropriate about beginning a Fibonacci history of Joomla with one. One decision, one project and quite a lot of people wondering what on earth was going to happen next?

1 — 2006: Joomla learns to walk

The Fibonacci sequence starts strangely: 1, 1.

So we get to have two beginnings. By its first birthday Joomla had moved well beyond being simply “that project which forked from Mambo”.

The numbers were already extraordinary: more than 2.5 million downloads, over 50,000 community members and approaching half a million forum posts.

Perhaps the most important development wasn’t Joomla itself, it was everything beginning to grow around Joomla.

On 5 March 2006, the Joomla Extensions Directory went live, creating a central home for the rapidly expanding collection of extensions being produced by developers around the world.

Then, on 22 April, the Netherlands hosted the first JoomlaDay (I have personally marked this event by devouring a stroopwaffel while writing this).

Those two events tell us a great deal about what Joomla was becoming. The JED demonstrated that Joomla wasn’t merely a piece of software. It was becoming a platform on which other people could build products, businesses and ideas but JoomlaDay demonstrated something equally important: the online community wanted to meet each other in the real world.

Our baby, Joomla had started walking.

2 — 2007: Growing pains are good pains

Two years old. Anyone who has encountered an actual two-year-old will know that this is approximately the point at which independence becomes non-negotiable and Joomla was no different.

The project was working towards its first genuinely major architectural step forward: Joomla 1.5.

For Joomla’s second birthday, the project released Joomla 1.5 RC2, appropriately codenamed Endeleo — a Swahili word associated with development, growth, progress and improvement.

Joomla 1.5 would not reach stable release until January 2008, but 2007 was the year in which the next generation of Joomla became tangible.

The community was changing too. Joomla User Groups were appearing around the world, bringing users together locally, while December saw the first Pizza, Bugs and Fun event.

The name remains one of Joomla’s most recognized activities. The principle behind it was even better: get people together, eat something, fix things and have fun doing it.

It encapsulated something that would become part of Joomla’s culture for years to come namely contribution doesn’t always need to feel like work. Sometimes open source runs on pizza!

3 — 2008: Joomla grows up

Three is where our sequence begins accelerating and 2008 gave Joomla a suitably significant milestone.

On 22 January 2008, Joomla 1.5 arrived.

This was much more than a routine update. Joomla 1.5 represented a major evolution of the CMS and became Joomla’s first release to achieve Long Term Support status.

For many people who built websites during this period, Joomla 1.5 became the Joomla they remember.

It matured into a remarkably capable platform supported by an increasingly sophisticated extension and template ecosystem. Developers could build businesses around Joomla. Designers could create increasingly ambitious websites with it. Organisations could adopt it with confidence.

Meanwhile the community itself was becoming more organised. Joomla User Groups were formally recognized, and the project’s Mission, Vision and Values were revisited during the year.

Three years after the original fork, Joomla was no longer proving that it could survive. It was proving it was here to stay.

5 — 2010: Joomla finds its voice

Five years.

By now Joomla was firmly established, with millions of users, thousands of extensions and communities spread around the world. During 2010, Joomla passed 22 million downloads, while downloads from the Joomla Extensions Directory exceeded 138 million.

J and Beyond brought an international Joomla audience together in Wiesbaden, Germany: 190 attendees from 27 countries with more than 55 sessions.

Joomla 1.6 was approaching release. But now i’m going to exercise a little editorial privilege here, because something else of consequence happened in 2010: The Joomla Community Magazine was launched andthe first issue appeared in July.

The idea was simple: create a place where the Joomla community could tell its own stories. Not just release announcements and technical stuff, but articles about development, design, security, businesses, events, extensions and crucially, people.

That distinction matters because while software has documentation, communities have stories.

And here we are sixteen years later and you’re reading this one and so I think we can safely declare Fibonacci number five a particularly good year. No editorial bias whatsoever.

8 — 2013: Joomla gets big. Really big.

By Joomla’s eighth anniversary, the numbers were becoming difficult to ignore.

Joomla had been downloaded approximately 44.9 million times. There were 67 accredited translations, around 160 registered Joomla User Groups, and 29 JoomlaDay events took place during the year. The Joomla Community Magazine even gained a Spanish edition.

Technically, Joomla was in the Joomla 3 era. Joomla 3.0 had arrived the previous September and had made the decidedly forward-looking decision to embrace responsive web design and Bootstrap at a time when much of the web was still deciding whether this “mobile thing” was really going to catch on.

In 2013, Joomla 3.1 added tagging, further extending the CMS’s content-management capabilities but perhaps the most interesting thing about Joomla at eight wasn’t any individual feature it was its reach.

Different languages. Different countries. Different professions. Different kinds of websites. A project that had begun with a relatively small group of developers making a difficult decision in 2005 had become genuinely global.

The Fibonacci spiral was getting wider.

13 — 2018: Lucky for some

Thirteen has an unfortunate reputation. Buildings occasionally forget to have a thirteenth floor. Airlines have been known to misplace row 13. People become suspicious when it falls on a Friday. Joomla however appears not to have been concerned.

On 17 August 2018, the Joomla Community Magazine published “A Lucky 13th Birthday to Joomla!”, looking back at the principles contained in that original 2005 letter to the community: collaboration, participation, good governance and software created for the benefit of others.

And 2018 had a particularly important technical story waiting just around the corner. On 30 October 2018, Joomla 3.9 was released with its Privacy Tool Suite.

GDPR had come into force earlier that year and privacy had suddenly become a subject that website owners could no longer leave exclusively to lawyers and people who enjoy reading cookie policies. Joomla responded with tools built into the CMS to help site owners handle privacy-related requirements.

It’s a useful example of something Joomla has repeatedly had to do over its lifetime: adapt. The web of 2018 bore remarkably little resemblance to the web of 2005.

Browsers had changed, devices had changed, development had changed, legislation had changed, user expectations had changed yet Joomla was still here. Unlucky 13? I don’t think so.

21 — 2026: The Golden Birthday

And eventually our Fibonacci sequence catches up with us. 1, 1, 2, 3, 5, 8, 13… 21.

Joomla is 21! and unlike many 21-year-olds, it has already survived several complete changes of fashion, numerous questionable design trends and rather more versions of PHP than it probably cares to remember. More importantly, Joomla enters its 21st year in the Joomla 6 era.

Joomla 6.0 arrived on 14 October 2025, representing another substantial modernisation of the CMS, with improvements to performance, code, security, accessibility and the editing experience. It also brought automatic core updates — one of those features which sounds rather mundane until you consider how significant automatically keeping millions of installations secure and current can be.

In April 2026 came Joomla 6.1, continuing the development of the new generation. So Joomla at 21 isn’t an archaic museum piece being kept alive because some of us have become sentimentally attached to it. It is actively being developed and used by individuals, communities, businesses, administrations and even governements.

People are still writing code. Still translating it. Still testing it. Still documenting it. Still organising events. Still answering forum questions. Still building businesses with it. Still arguing about things.

It wouldn’t be Joomla if we didn’t occasionally argue about things (so I’ve heard but that’s just hearsay).

And perhaps that brings us back to Phi.

Finding the Golden Ratio
The fascinating thing about the Fibonacci sequence isn’t really the individual numbers, it’s the relationship between them; each new number depends upon what came before it.

1 + 1 becomes 2.
1 + 2 becomes 3.
2 + 3 becomes 5.
5 + 3 becomes 8.

And so on: nothing exists independently.

Which, when you think about it, isn’t a bad metaphor for an open-source project. Joomla 6 exists because Joomla 5 existed. Joomla 5 exists because of Joomla 4.

And behind those releases are thousands upon thousands of contributions: code written, bugs reported, documentation corrected, translations completed, events organised, forum questions answered, articles written and newcomers welcomed.

Each contribution becomes part of whatever comes next but bear this in mind: The golden ratio isn’t about two things being equal but about maintain proportion. Perhaps that’s an equally useful thought for Joomla at 21.

A successful open-source project has always required a balance: developers and users; innovation and stability; technical excellence and accessibility; individual ideas and collective decisions; looking after what already exists while still being prepared to change it.

Getting those proportions right isn’t easy and we haven’t always got them right. We probably won’t always get them right in the future but after 21 years, we’re still working on it.

The next number
There is, unfortunately, one slight problem with organising Joomla anniversaries around Fibonacci numbers as the next one is 34.

So unless the editor is prepared to accept this as an extremely long-term commission, we may need to find another mathematical excuse for a birthday article before 2039. For now, though, 21 seems worth enjoying.

From a fork in 2005 to a mature, modern CMS in 2026, Joomla’s story has been shaped by thousands of people adding their contribution to those that came before.

1, 1, 2, 3, 5, 8, 13, 21.

Code, community, contribution and occasionally pizza.

Perhaps after all these years Joomla hasn’t discovered the perfect formula.

But it may just have found its golden ratio.

Happy 21st birthday, Joomla.