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Umbraco versions: support status and end-of-life dates

Short answer

As of 8 October 2026, Umbraco 17 LTS and 18 STS are fully supported; Umbraco 13 LTS gets security fixes only, until 14 December 2026; Umbraco 7–12 and 14–16 are end of life. If you are upgrading, target Umbraco 17 LTS: it is supported until 27 November 2028.

Support status, end-of-life dates, runtimes and backoffice of every Umbraco version
VersionReleasedRuntimeBackofficeStatusFull support untilEnd of lifeWhat to do
Umbraco 18 STS25 Jun 2026.NET 10Web ComponentsSupportedNot LTSFine for now; plan the move to the next LTS
Umbraco 17 LTS27 Nov 2025.NET 10Web ComponentsSupportedUpgrade target
Umbraco 16 STS12 Jun 2025.NET 9Web ComponentsEnd of lifeNot LTSUpgrade to 17 LTS
Umbraco 15 STS14 Nov 2024.NET 9Web ComponentsEnd of lifeNot LTSUpgrade to 17 LTS
Umbraco 14 STS30 May 2024.NET 8Web ComponentsEnd of lifeNot LTSUpgrade to 17 LTS
Umbraco 13 LTS14 Dec 2023.NET 8AngularJSSecurity fixes only67 days leftUpgrade to 17 LTS
Umbraco 12 STS29 Jun 2023.NET 7AngularJSEnd of lifeNot LTSUpgrade to 17 LTS
Umbraco 11 STS1 Dec 2022.NET 7AngularJSEnd of lifeNot LTSUpgrade to 17 LTS
Umbraco 10 LTS16 Jun 2022.NET 6AngularJSEnd of lifeUpgrade to 17 LTS
Umbraco 9 Legacy2021.NET 5AngularJSEnd of lifeNot LTSUpgrade to 17 LTS
Umbraco 8 Legacy2019.NET Framework 4.7.2AngularJSEnd of lifeNot LTSMigrate content and code to 17 LTS
Umbraco 7 Legacy2013.NET Framework 4.xAngularJSEnd of lifeNot LTSMigrate content and code to 17 LTS

Statuses are recalculated every day. Dates last checked against Umbraco HQ's support policy on 4 October 2026 by the Saatec Umbraco team. Download as JSON (CC BY 4.0).

What LTS and STS mean

Umbraco has two kinds of major release. Long-term support (LTS) versions, such as Umbraco 10, 13 and 17, get 24 months of full support (bug and security fixes) and then 12 months of security fixes only: three years in total. Short-term support (STS) versions arrive in between, bring new features earlier, and are supported for about a year.

For a site you want to run for years without constant upgrades, stay on LTS and move from one LTS to the next.

What end of life means for your site

When a version reaches end of life, Umbraco HQ stops releasing security fixes for it. The site keeps working, but:

  • Newly found vulnerabilities stay open, on a public website.
  • Security audits, penetration tests and cyber-insurance questionnaires flag unsupported software.
  • Package authors stop releasing updates for that version, so fixes in packages dry up too.
  • The longer you wait, the bigger the eventual upgrade, because more breaking changes pile up.

Which version should you upgrade to?

Umbraco 17 LTS. It is supported until 27 November 2028, so an upgrade now buys you more than two years of patches. Choose a newer STS version only if you need one of its features and can upgrade again within a year.

Check the .NET runtime too

Each Umbraco version runs on a specific .NET version, and Microsoft supports those on its own schedule. Microsoft ends support for .NET 8 and .NET 9 on 10 November 2026 (33 days left). That affects Umbraco 13 and 14 (.NET 8) and Umbraco 15 and 16 (.NET 9). Umbraco 17 runs on .NET 10. Microsoft's .NET support policy

How this page stays current

Every status, countdown and answer on this page is calculated from a single data file each time the site is built, and the site rebuilds every day. The countdowns also update in your browser. The underlying dates are checked against Umbraco HQ's published policy; the last check was on 4 October 2026.

Answers

Umbraco version questions, answered.

Generated from the same data as the table above, so they are always in step.

What is the latest version of Umbraco?

Umbraco 18, released on 25 June 2026. It is a short-term support (STS) release, supported until 25 June 2027. The newest long-term support (LTS) release is Umbraco 17, supported until 27 November 2028.

Is Umbraco 13 still supported?

Partly: security fixes only, until 14 December 2026. Bug fixes ended on 14 December 2025. After 14 December 2026 Umbraco 13 LTS gets no patches at all, so plan the move to Umbraco 17 LTS now.

When does Umbraco 17 reach end of life?

On 27 November 2028. Umbraco 17 is a long-term support release: full support until 27 November 2027, then security fixes only until 27 November 2028.

Is Umbraco 10 still supported?

No. Umbraco 10 LTS reached end of life on 16 June 2025 and no longer receives security fixes. Upgrade to Umbraco 17 LTS, which is supported until 27 November 2028.

Is Umbraco 8 still supported?

No. Umbraco 8 reached end of life on 24 February 2025 and no longer receives security fixes. Because it runs on .NET Framework 4.7.2, moving to Umbraco 17 means migrating content and rebuilding code rather than an in-place upgrade.

What is the difference between Umbraco LTS and STS?

LTS releases are supported for three years, STS releases for about one. A long-term support (LTS) version gets 24 months of bug and security fixes, then 12 months of security fixes only. Short-term support (STS) versions arrive in between with new features and are supported for about a year.