Image of Umbraco 9 logo in space illustration

More big news from Umbraco, right on the heels of their recent acquisition by Monterro: the launch of Umbraco 9.

As the company claims on its website, "with every new release of Umbraco, you get a CMS that's simpler." That seems central to this new version, which promises a simpler experience for editors, developers, and web agencies that rely on their user-friendly, flexible, and fully customizable content management system.

Umbraco 9 features a complete update of their CMS technology stack, with a move from .NET Framework to now running completely on .NET 5 (previously known as .NET Core). According to the company, this transformation will offer enhanced performance and scalability, a cleaner architecture, and compatibility with macOS, Linux, and Microsoft Windows – opening up Umbraco to a larger pool of web developers.

“Moving Umbraco completely to the latest version of .NET future proofs the platform, providing a robust CMS on the most relevant and modern technology familiar to—and expected from—today’s web developers,” said Kim Sneum Madsen, CEO of Umbraco. “Making Umbraco cross-platform as well means web agencies struggling to find developers will have even more options as Linux and macOS developers – and not just those working on Windows – recognize the benefits Umbraco offers.”

Founded in 2005, Umbraco’s CMS "family" includes its flagship, open-source Umbraco CMS, as well as Umbraco Heartcore (a headless CMS), Umbraco Cloud, and Umbraco Uno – a one-stop platform for non-technical marketers and creative agencies. 

With help from its active community of more than 220,000 members, including a large “best-of-breed” partner network that offers customized solutions that integrate with Umbraco, the company now counts more than 700,000 websites worldwide—the majority in Europe and the U.S.—running live on its solutions.

Umbraco provides cadence for major new version releases, taps community for validation

The launch of Umbraco 9 also kicks off the company's plan for steady releases of new major versions. This cadence is aligned with Microsoft .NET Long Term Support (LTS) releases, which means users can be confident that future Umbraco LTS versions are always updated to the latest Microsoft technology.

“With Umbraco now on .NET 5, not only do we get some significant baseline improvements from the framework, but we can finally take advantage of some of the huge performance gains available in these latest .NET releases,” said Benjamin Carleski, senior developer, ProWorks Corporation. ”Umbraco 9 brings the latest advances to the CMS, such as string and Regex optimizations, and is fully compatible with .NET 6, with its round of further enhancements, when it releases later this year. Umbraco developers will also get access to an improved config system, Lucene.NET 4 enhancements, better member/user integrations, and so much more that has been added to Umbraco in v9.”

With help from long-time users like Carleski – and thousands of members of their open-source community – Umbraco 9 is “clearly ready for global use,” Madsen added. He went on to say: “Developers and their web agencies can be confident using Umbraco 9 for new projects today and long into the future, all without worrying about multiple frameworks or running multiple versions in tandem. They get a user-friendly and up-to-date CMS on modern and secure technology with a clear upgrade plan, making it even easier to create new digital experiences for themselves and their clients.”

To learn more about Umbraco 9, visit Umbraco's website.

About Umbraco

Danish Umbraco was founded in 2005 with the vision of making the complex simpler. The company offers a user-friendly best-of-breed platform for content management (CMS) based on open-source technology. With more than 700,000 installations, Umbraco is one of the most deployed Web Content Management Systems on the Microsoft stack. Its success lies in the open-source model, a unique community of more than 220,000 developers and users, and a well-established partner network of digital agencies. Umbraco has 100 employees and is headquartered in Odense, Denmark, with a branch office in Charlotte, North Carolina. For more information, visit