What's new in Umbraco 17, and what it means for you

You're running Umbraco 13 and wondering: stay put or make the move? This is a good moment to ask, because a lot has changed. Umbraco 17 is a Long Term Support release, built on Microsoft's .NET 10 LTS. That means longer-term certainty, better performance and improved scalability. Below, we explain in plain language what's new, what it gets you and when it makes sense to act.

You're facing a decision that affects your growth

What matters to you is a website that runs fast, securely and reliably. Your team wants to manage content smoothly, your data and integrations need to keep working, and you want to scale without hassle. That's exactly where the new LTS version helps. According to the release information, Umbraco 17 focuses on stability and performance, including load balancing the backoffice across multiple servers and consistent date handling to prevent errors. In plain terms: less risk of outages, faster editing and more peace of mind for your organization.

What's new in Umbraco 17?

The core improvements are built for scale, reliability and ease of use for editors and administrators.

Better stability as you grow
You can now distribute the backoffice across multiple servers. This is called load balancing, and it keeps editorial work moving even during traffic spikes or maintenance. In practice: your team can keep publishing while the site is under heavy load.

Fewer errors thanks to consistent data
Date and time fields are handled more consistently. This prevents differences between time zones or servers and saves manual work on campaigns, newsletters and multilingual content.

Faster searching and publishing
Several sources report improvements in search and caching. You'll notice the difference in day-to-day work: finding content faster, shorter waits when publishing and snappier lists in the backoffice. That saves your marketing team time.

Smarter multilingual work and workflows
There are improvements for language variants and editorial workflows. Think more precise translation at the block level and clearer steps in review and publishing. You stay in control, without the extra email back-and-forth.

What the move from Umbraco 13 to 17 looks like for you

As a director or marketing manager, you care about three questions: will everything keep working, how much time will it take and what will it deliver? The short answer: yes, everything can keep working, as long as we carefully bring your custom code and integrations along. We plan the upgrade step by step, test integrations and roll out in phases, so your site stays up and running throughout.

Your editors will mainly notice gains in speed and clarity. Finding and publishing content is quicker, managing multiple languages is clearer and the system feels more stable. On the technical side, we move to .NET 10 LTS, the secure foundation you'll build on for years to come.

Torn between continued development and a redesign? We'll decide together based on your goals. Sometimes a targeted upgrade is enough. Sometimes a bigger step makes more sense, for example if you already want to further develop your custom website or are planning a new web portal for clients or partners. Do you work with a lot of data and integrations? Then we'll look at your data solution and integrations to make sure everything moves over seamlessly. Want to talk through our approach first? Read more about our Umbraco CMS expertise.

As an engaged, strategic partner, True People gives you a plan that fits your organization: clear, phased and free of surprises. Our deep Umbraco expertise helps us work through bottlenecks quickly and keep risks to a minimum.

Planning and preparation: when to take action

Now is the time to map out your roadmap. Umbraco 13 moved to security-only updates on December 14, 2025 and reaches end of support on December 14, 2026. An upgrade involves preparation, development and testing. Depending on the scope and integrations, a realistic timeline is often between 6 and 16 weeks, including a content freeze and acceptance testing. Planning now means you won't be juggling deadlines, campaigns and peak periods all at once.

We start with a quick review of your site, integrations and editorial processes. Based on that, you'll receive a concrete roadmap with timeline, costs and risks. That way you can decide with confidence and start benefiting from the performance and peace of mind of the new LTS this year.