Delaying an ExpressionEngine upgrade is easy to justify. The site still works, the budget is committed elsewhere, and nothing has broken yet. But delays in this area follow a predictable pattern, and the costs accumulate in ways that are not immediately visible.
The gap between versions widens
ExpressionEngine has released several major versions over the past decade. Each major version involves architectural changes that affect how upgrades are handled. A site that upgrades steadily through versions is a much simpler project at each step than a site that skips multiple major versions in one go. The further behind you fall, the more each version gap contributes to migration complexity and the time required to complete it safely.
More addons fall out of support while you wait
Third-party addons for ExpressionEngine are maintained by independent developers. Each time you delay, there is a higher probability that one or more of your addons has been abandoned, is no longer compatible with the current EE version, or requires replacement rather than a simple update. Replacing addons is not just a technical task. It may involve workflow changes, retraining, or rebuilding functionality that was previously handled by a plugin that no longer exists.
Technical debt becomes harder to separate from the upgrade
Sites that were built several years ago often contain customisations that were never properly documented. As time passes, the people who built those customisations move on. By the time an upgrade is finally commissioned, the scope of the work includes not just the upgrade itself but also an archaeology project to understand what the site actually does and why certain things were built the way they were.
Emergency upgrades cost more than planned ones
The most expensive scenario is the forced upgrade: a hosting provider announces an end-of-life PHP version, or a security incident occurs, or a critical addon stops working. At that point, the upgrade has to happen under time pressure, without the luxury of planning, testing, and staging. Work done under pressure is more expensive and carries more risk of introducing new problems.
What planned maintenance actually looks like
The alternative to all of this is a simple maintenance arrangement where your ExpressionEngine site is reviewed on a regular basis. Core and addon updates are applied in a controlled environment, tested, and deployed systematically. Issues are caught before they become crises. The total cost of that approach over three years is typically a fraction of what a deferred upgrade under pressure costs in year four.
If you have been putting off an ExpressionEngine upgrade, get in touch with Karl to find out what it is costing you.
There’s no single answer to when you should upgrade your ExpressionEngine installation, but there are several clear signals that tell you it’s overdue. Most business owners don’t think about this until something goes wrong. By then, the upgrade is usually more involved than it would have been if it had been done earlier.
If your website is running on ExpressionEngine 4 or 5, it may look fine on the surface. But underneath, you are carrying costs that most business owners do not see until something goes wrong. This is not about upgrading for the sake of it. It is about understanding what your current situation actually means.
ExpressionEngine has changed hands several times over the years. The current owner, Packet Tide, acquired the platform and has been responsible for its ongoing development. If your business runs on ExpressionEngine, understanding who owns the platform and what their priorities are is worth knowing.
Most clients come to us when their site has started to feel like a risk rather than an asset. Whether the agency relationship has ended, an upgrade has been delayed, or the site has simply grown beyond what it can handle, a conversation costs nothing.