What it means when an Umbraco website version goes EOL (End of Life)

Introduction

If your website runs on Umbraco, you may have come across messages saying your version is reaching or has reached "EOL" — short for End of Life. But what does that actually mean for your website, and what action (if any) should you take?

In this article, we’ll explain what EOL means in the context of Umbraco CMS, why it matters, and what your options are when your site is affected.

What does EOL mean?

EOL (End of Life) refers to the point at which a particular version of Umbraco is no longer officially supported by the Umbraco development team.

This means:

• No more security updates

• No bug fixes

• No technical support or patches

• Community forums may become less active or outdated

The version you’re using will stop evolving and become more vulnerable over time.

Source:
Umbraco Product Lifecycle Policy

Why does Umbraco set EOL dates?

Like most modern software platforms, Umbraco follows a lifecycle model to manage its products. This ensures:

• Users benefit from newer, faster, and more secure versions

• The development team can focus resources on improving the current platform

• Clear expectations around version longevity

Umbraco publishes EOL timelines for each version when it's released, giving developers and businesses plenty of time to prepare for upgrades.

Source:
Umbraco Release Schedule

What happens if I keep using an EOL version?

If your Umbraco site is running on an EOL version, it won’t suddenly stop working — but there are risks and limitations you should be aware of:

1. Security risks
Without security updates, vulnerabilities in your CMS could be exploited, leaving your website open to attacks or data breaches.

2. Compatibility issues
Newer browsers, devices, plugins or integrations might not work smoothly with outdated versions of Umbraco.

3. Limited support
Agencies and developers may be less able (or willing) to support older versions due to lack of resources or system compatibility.

4. Missed features
You won’t benefit from performance improvements, new features, or UI enhancements introduced in newer versions.

What are your options when Umbraco goes EOL?

If your current version is approaching or has passed its EOL date, here’s what you can do:

1. Upgrade to a supported version
This is the recommended approach. Depending on how old your version is, this may be a straightforward update or a major migration 

2. Consider Umbraco LTS versions
LTS (Long-Term Support) versions receive support for a longer period (typically 3+ years). These are ideal for businesses that want platform stability with minimal disruption.

3. Review hosting and infrastructure
EOL is a good time to assess your overall setup. Is your hosting up to date? Are your integrations still serving their purpose?

4. Plan for a rebuild (if necessary)
If your site is running on a very old version and relies on outdated packages or custom code, a full rebuild may be more efficient in the long run.

Summary / key takeaways

• EOL means your Umbraco version no longer receives updates or support

• Continuing to use it comes with security, performance, and support risks

• The best path forward is usually to upgrade or rebuild on a supported version

• Speak to your digital partner to assess effort, risks, and opportunities

Looking for advice?

If you're not sure whether your Umbraco version is reaching EOL — or want help planning a smooth upgrade — our team can review your site and give clear, tailored recommendations.

Get in touch today to avoid surprises later.