Umbraco 15 – The Friendly and Flexible .NET 9 CMS
Build faster, scalable, and content-rich websites with Umbraco 15, built on the latest .NET 9 (ASP.NET Core 9) framework. Whether you’re creating a small site or a large-scale, content-heavy platform, Umbraco 15 offers powerful new features, enhanced performance, and seamless integrations to support your vision.
Umbraco 15 is the current active version of Umbraco - available on Umbraco Cloud and NuGet.
Key Features of Umbraco 15
This major version of Umbraco CMS brings a host of innovative updates
Optimized Caching with HybridCache
Umbraco 15 introduces a new cache implementation, built for performance. Designed with a lazy-loaded strategy and solid support for distributed environments. Reduced memory usage, shorter startup times, and support for seamless load balancing across multiple servers. Perfect for content-heavy and high-traffic websites, the new Microsoft HybridCache ensures faster content delivery and a smoother user experience.
Enhanced Multilingual Management with Block Level Variations
Easily manage multilingual websites with Block Level Variations. This new feature streamlines content management across multiple languages, enabling you to maintain consistency across different regions while adjusting content at the block level. Save time and effort by keeping your core structure consistent and simply varying individual blocks for localized content.
Seamless Integrations with Secure Client Credentials
Umbraco 15 simplifies system-to-system communication by introducing Client Credentials for API integrations. Designed to enhance security and efficiency, this feature allows you to authenticate between systems without the need for manual password entries. Automate workflows and securely connect with external applications through Umbraco’s Management API.
New Rich Text Editor
Meet the new Tiptap Rich Text Editor, a highly customizable editing experience tailored to meet modern content creation needs. Based on an open-source framework, Tiptap provides all the features editors are accustomed to, while allowing for advanced customization. The new editor is designed to be intuitive and seamless, making the transition easy for users previously familiar with TinyMCE.
Built on .NET 9 for Modern Performance
Umbraco 15 is built on the latest .NET 9 (ASP.NET Core 9) framework, ensuring your website benefits from the latest advancements in speed, security, and scalability. .NET 9 provides a modern foundation that’s faster and more flexible, giving developers the tools they need to create highly responsive, secure applications with minimal overhead.
Improved for Large-Scale Projects
As more enterprises choose Umbraco for content-rich, large-scale websites, we’ve made sure Umbraco 15 is ready to handle it all. With enhanced caching, load-balancing capabilities, and multi-server support, Umbraco 15 is optimized for large and complex digital experiences. From e-commerce to media-heavy platforms, this CMS can handle your most ambitious projects with ease.
Why Upgrade to Umbraco 15?
- Optimized Performance: Experience faster startup times and efficient resource usage with HybridCache, designed for high-traffic, content-heavy websites.
- Multilingual Flexibility: Manage multilingual sites with ease using Block Level Variations, keeping content consistent across regions.
- Secure Integrations: Enable safe, automated workflows with Client Credentials for system-to-system API communication.
- Modern Editing Experience: Enjoy the new Tiptap Rich Text Editor, offering a streamlined interface with advanced customization options.
- Future-Ready: Built on .NET 9, Umbraco 15 is designed to provide a secure, flexible, and high-performing foundation for the web’s evolving demands.
The Latest and Greatest Features
Umbraco 15 is the active version of Umbraco with new features and functionality until Umbraco 16 is released in Q2 2025. Following this, Umbraco 15 will continue to get 3 months of bugs, regression, and security fixes followed by a final 3 months of security fixes.
By having your website/project on an STS version, you can take advantage of the cutting-edge features and be sure it's safe for 12 months without any breaking changes. Being on the latest version also provides an easier upgrade to the next major release. If you need longer support without major upgrades, Umbraco 13 is the current Long-term Support version and will provide coverage until Q4 2026.
Get started with Umbraco 15 today
Ready to take your web projects to the next level with Umbraco 15? Download the latest version or start a project on Umbraco Cloud to experience the enhanced performance, flexibility, and scalability of Umbraco’s newest release.
If you want to dive further into the features in Umbraco 15, check out the Umbraco 15 release blog post and the release notes.
If you're new to Umbraco and curious about how you get the best start, feel free to contact us to get off to the very best start: