There are things we let slide because they don’t hurt. A website that still works well enough, a version of Umbraco that is “just about holding up”, small warnings that appear and disappear… until the day they stop disappearing.

And at that point, what could have been a simple update becomes a problem no one wants to deal with.

If you manage a site running on Umbraco 7, 8, 9, 10 or 11, this feeling may sound familiar. Technology doesn’t break from one day to the next — it simply falls behind, quietly. And while that happens, the market changes, legal requirements tighten, SEO becomes more demanding, and the digital experience we offer to users begins to lose its shine.

Umbraco 17, built on .NET 10 LTS, is not just the new version of the platform: it marks the boundary between legacy technology and the path we want to follow between 2026 and 2028, taking advantage of the new LTS support cycle.

And that’s worth talking about.

When does a website start to age?

Usually, when the people looking at it from the outside begin to notice what we’ve been ignoring from within.

When we load a site on a mobile phone and the page takes three seconds that feel like ten. When the cookie banner appears but doesn’t quite behave as it should — or worse, installs cookies before any consent. When search engines value speed more than intent. When the backoffice starts showing signs of fatigue: occasional errors, components that stop working, plugins no one maintains anymore.

And of course, when the very version of Umbraco reaches that awkward stage called end of life. It happens faster than we think.

What actually changes with Umbraco 17?

If you’re expecting a robotic list of features, you won’t find it here. What really matters is the tangible impact on your business.

The site becomes faster — and that’s worth money

.NET 10 isn’t just a Microsoft update; it is a different way for the server to breathe. Pages load faster, images weigh less, and the backoffice is more responsive. All of this has a simple consequence: better SEO, more conversions, and reduced hosting costs.

Security as it should be

Versões antigas são terreno fértil para vulnerabilidades. Não porque o Umbraco seja inseguro, mas porque a tecnologia evolui e os ataques também. Atualizar para 17 + .NET 10 significa recuperar tranquilidade: ter uma base mais sólida, atualizada, com suporte real e menos dependências obsoletas.

Ready for the modern world

More stable APIs, cleaner integrations, and the realistic possibility of evolving to a modern frontend (Nuxt, Next.js, React, Vue). Umbraco 17 opens doors — it doesn’t close them.

A step that prevents future problems

The older the version, the more complex the migration becomes. It’s no coincidence that many upgrades we perform today could have been far simpler… two years earlier. Time is unforgiving in the digital world.

The invisible side: compliance and digital responsibility

It’s a sensitive topic, but unavoidable. In Portugal, a large percentage of websites — including major brands have cookie banners that do not meet even the basic requirements of GDPR. Cookies installed before consent, uncontrolled scripts, missing logs, consents that aren’t stored.

And then there’s accessibility. It isn’t just a requirement for public entities; it is a clear sign of digital maturity. Upgrading to Umbraco 17 is the ideal moment to align everything: cookies, scripts, accessibility, performance and SEO. Think of it as a full service — but digital.

How we support this transition

We don’t carry out blind upgrades. What we do is a full analysis of your website: how it’s built, what limits it, where the risks are, what should be kept and what should be replaced. Then we design a plan. Short, clear, painless. And we execute it without interrupting the live site — even in large migrations, such as 7 → 17 or 8 → 17.

The logic is simple: an upgrade should be a step forward, not a problem.

Before deciding: we offer a free audit

We call it an audit, but in practice it’s an X-ray of your Umbraco installation. It includes a technical assessment of the version and structure, identification of security risks, performance analysis (Lighthouse and Core Web Vitals), cookie and GDPR compliance review, accessibility checks (WCAG), and a clear plan to migrate to Umbraco 17.

No cost. No obligation. No hidden commitments. Just the most transparent way to make an informed decision.

Book a free audit

Conclusion

Technology waits for no one. Either we adapt, or we keep patching things up until we become prisoners of something that was meant to serve us. Upgrading to Umbraco 17 isn’t a technical gesture — it is a way of ensuring that your website remains ready to compete, grow and meet user expectations over the coming years, with a stable foundation between November 2025 and November 2028.

The digital future doesn’t arrive with a bang; it approaches quietly. And now, it’s right at the door.

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Written by Marco Teodoro
Founder & CEO, Double Shore