Umbraco Version Upgrades

Umbraco Version Upgrades

An Umbraco site that hasn't been updated is an asset that keeps losing value. Every version moves through Umbraco's official lifecycle, passing from full support, to security-only, and finally to End of Life, where no security updates arrive at all. Version 7, for example, reached end of life back in September 2023, and version 8 in February 2025. The implication is simple: a site running on these versions is exposed to vulnerabilities that will never be patched, and may breach the organization's security and regulatory requirements.

We specialize in upgrading existing Umbraco sites from older versions, including 7, 8, 9, 10, and up, to the most stable and supported version available today. We work according to Umbraco's official lifecycle, so you always land on a version inside the support window rather than outside it. You can review Umbraco's full support and version policy on the Umbraco LTS & End-of-Life page.

The move is not a "reinstall" but a carefully engineered migration process, tailored to your base version. Starting with version 9, Umbraco was rebuilt on top of ASP.NET Core, so moving from an older version is a genuine engineering project: mapping the content structure, adapting Document Types and Templates, converting custom code, and rebuilding integrations and third-party packages in the modern environment. Upgrades between version 14 and up, by contrast, are far faster and more incremental, and sometimes complete within a short time.

Here is how we work: assessing the current state and mapping gaps, choosing the right target version based on your needs and timeline (we will usually favor advancing to an LTS version), a gradual and safe migration with package and code adaptation, comprehensive testing in a separate staging environment, and finally a scheduled go-live with a full backup and a rollback plan. Every step is documented, so the organization knows exactly what was done and why.

The outcome is a faster, more secure, standards-compliant site, with access to the latest Umbraco and .NET capabilities, and a clean codebase your team can keep building on for years to come. Instead of living with constant risk, you return to a supported, sustainable platform.

Unsure whether to upgrade your existing version or rebuild from scratch? Talk to us, and we'll help you choose the right path.