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Upgrading Umbraco can feel daunting, especially if you're working with a legacy platform that’s deeply embedded across your organization. But at Cantarus, we see it not just as a technical necessity, but as a strategic opportunity, and that’s exactly why global organizations trust us to guide them through it.
From speeding up performance to enhancing long-term maintainability, we help clients use upgrades as a springboard for wider platform improvements. With a proven approach, Platinum Partner status, and an industry-leading satisfaction score, we don’t just deliver upgrades – we deliver confidence.
Older versions of Umbraco, particularly v7 and v8, come with more than just outdated features. Over time, they become harder to maintain, more vulnerable to security threats, and less aligned with the needs of modern digital teams.
Without regular updates, performance begins to lag. Load times slow down, and users are left frustrated. Editorial workflows become clunky and time-consuming, especially on platforms that weren’t built with today’s content expectations in mind. Custom workarounds and outdated integrations start to pile up, making every small change more expensive and more brittle.
And then there’s the security risk. Unsupported versions of Umbraco stop receiving security patches, leaving your platform increasingly exposed. For organizations handling sensitive data, this quickly becomes more than an inconvenience – it becomes a liability.
Teams spend more time fixing problems than making progress. Technical debt builds. And the longer it goes unchecked, the harder (and more costly) it becomes to dig out of it.
We help clients break that cycle. We reframe the upgrade conversation as an opportunity, not just to stay supported, but to modernise, streamline, and build a platform that’s genuinely fit for the future.
An Umbraco upgrade isn’t just about keeping the lights on. Done right, it’s a chance to clean up legacy code, retire outdated integrations, and adopt modern best practices like .NET 8 compatibility, block editors, or headless-ready architecture.
Thanks to Umbraco’s predictable release cycle, with two major versions per year and Long-Term Support (LTS) every two years, we can help clients plan upgrades around their wider digital roadmap with confidence.
We’re proud to be one of only a few Umbraco Platinum Partners operating in both the UK and the US. Our team includes Umbraco MVPs and certified developers who have delivered dozens of successful upgrades across a wide range of sectors and technical setups.
We don’t just follow best practices. In many cases, we help define them. From speaking at global events to contributing to open source packages and working closely with Umbraco HQ, our expertise runs deep.
Trust isn’t just something we talk about, it’s something we’ve earned. Our Net Promoter Score of +75 is not only past the ‘excellent’ benchmark, it’s also more than double the industry standard.
That score reflects the long-term partnerships we’ve built, the reliability of our delivery, and the genuine care we bring to every upgrade project.
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We’ve also worked with several U.S.-based membership organizations, delivering upgrades that involved everything from legacy AngularJS component replacement to custom CRM integrations and multi-region content setups.
Our approach to upgrades has been refined over years of delivery. It’s designed to be smooth, structured, and fully supported. We start with a full audit of your existing platform, identifying potential blockers, risks, and opportunities for optimization. From there, we follow a step-by-step approach that keeps disruption to a minimum and communication crystal clear.
And once the upgrade is live, we’re still here – offering post-launch support, editor training, bug fixes, and ongoing platform improvement through flexible support packages.
When it comes to Umbraco, we know the platform inside and out. Be it a straightforward upgrade or a complex rebuild, we’ve delivered it before, and we’re ready to do it again. But more importantly, we don’t just see clients as projects. We build partnerships.
When you work with Cantarus, you get a trusted digital partner who’s invested in your long-term success, not just your next upgrade.
Whether you're planning for Umbraco’s end-of-life timelines, looking to modernize your stack, or simply want to understand your options, we’re here to help.
We’ll help you plan an upgrade path that’s smooth, strategic, and future-ready – just like your organization deserves.