The new LTS version of Umbraco version 17 has been rolled out

Umbraco's latest Long-Term Support release is here: Umbraco 17. This release marks an important step in the further development of the platform, with major improvements in speed, scalability and stability. Built on .NET 10 LTS and equipped with a fully developed back office.

Umbraco 17 faster, more stable and more scalable

An important moment, the new version Umbraco 17 was released on November 27.

At Xuntos, we follow, as Umbraco platinum partner, the Umbraco technological roadmap meticulously. In this article, we list the most important innovations and explain why Umbraco 17 is an excellent choice for digital growth.

This version of Umbraco 17 is not just an update. It is the new Long-Term Support (LTS) version for the Umbraco CMS.
Umbraco releases a new major release every six months. But version 17 is different:

  • It's the next LTS release, built for long-term stability.
  • It completes the modernization of the back office that started in Umbraco 14.
  • The entire ecosystem: packages, extensions and add-ons has been improved

For agencies, developers and organizations, this means:
a mature, future-proof basis on which you can safely continue to build.

What are the most important innovations in Umbraco 17?

1. Built on .NET 10 LTS: Maximum Performance and Stability

Umbraco 17 is fully up and running .NET 10 LTS, which ensures:

  • higher performance
  • improved security
  • long-term support
  • optimal development experience

The combination of Umbraco 17 + .NET 10 makes the platform faster, more economical and more reliable.

2. Load-balancing for the back office: truly scalable content creation

The back office can now be distributed across multiple servers.

What this means:

  • larger editorial teams are served faster
  • no more single point of failure
  • improved stability at high content volumes
  • easier scalable infrastructure

For organizations with many editors, international teams, or peak periods in content management, this is a huge step forward.

3. Fully consistent date and time processing (UTC)

Small change, big impact.
All dates in Umbraco are now stored and processed in UTC, which ensures:

  • error-free publications across time zones
  • consistent logs and reports
  • more reliable scheduling in multi-region setups

With the new Date Time Picker, editors can also easily select time zones. Ideal for international websites.

4. Major accessibility improvements in the back office

Together with external experts, the Umbraco back office has been further developed at the WCAG level. Many of the improvements are now available in 17 or will follow in 17.1.

That means:

  • predictable workflows for all users
  • better support for screen readers
  • more accessible management for organizations that also need to work in an accessible way themselves

5. Much improved documentation thanks to the community

More than 40 articles have been rewritten or completely renewed.
For developers, this means:

  • clearer explanation
  • better examples
  • easier onboarding

Umbraco Cloud & add-ons

Umbraco 17 is available immediately at Umbraco Cloud. In addition, many commercial add-ons have been fully updated:

Umbraco MCP: AI ready for production

The developer MCP now has:

  • full API parity
  • better media generation
  • multicultural content support

AI features specific to editors will also follow later.

Umbraco Engage: tailored to the new back office

Engage runs entirely on the new back office architecture and now supports:

  • Deploy for configuration
  • Synchronize people, journeys, and goals across environments
  • Starting with Umbraco 17, you can also move Engage configurations between environments via Deploy.

Learn more about Umbraco Engage

Umbraco Commerce: Easier to Start

For Commerce, there's:

  • a complete starter guide
  • cart, checkout & account examples
  • a basic open source implementation

Ideal for organizations that want to integrate e-commerce into their Umbraco landscape.
Learn more about Umbraco Commerce

Umbraco Forms: New licensing model

From version 17:

  • switch to subscription-based licensing
  • old .lic files are no longer supported
  • Cloud users migrate automatically

Umbraco Workflow: Release Sets available by default

Release Sets allow editors to publish content as a group at once. Useful for campaigns, seasonal updates, or major batch changes.

In addition:

  • new granular permissions
  • settings moved to the Settings section

Learn more about Umbraco Workflow

Umbraco UI Builder

UI Builder makes it possible to build your own management interfaces in the back office without heavy custom code.
From Umbraco 17, these automatic upgrades will also be added.

Why choose Umbraco 17?

With improvements in performance, stability, scalability and user experience, Umbraco 17 is the version for organizations that want to invest in a future-proof platform.

  • LTS long-term support
  • modern, fast and safe
  • scalable infrastructure (including for large content teams)
  • ready for AI applications
  • strong ecosystem with updated packages

Starting with Umbraco 17? Xuntos helps you out.

Do you want to upgrade to Umbraco 17, or explore what benefits it offers to your digital environment?
We help organizations with:

  • strategic advice
  • design
  • technical implementation
  • cloud hosting
  • migrations and upgrades
  • links and customization

Read more about What we make country Your approach.

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