Question 1

What happens when Umbraco reaches end of life?

Accepted Answer

When Umbraco reaches end of life, it stops receiving security patches, bug fixes, and new features. Currently, 9 Umbraco versions are already EOL. The latest supported version is Umbraco 17, maintained until November 27, 2028. Running an EOL version exposes your systems to unpatched security vulnerabilities with no official fix available.

Question 2

Is Umbraco 17 still supported?

Accepted Answer

Yes. Umbraco 17 is actively supported until November 27, 2028. It receives security patches and bug fixes. Check the version table above for the full list of supported Umbraco releases and their exact end-of-life dates.

Question 3

Is it safe to use Umbraco after end of life?

Accepted Answer

No. Running Umbraco after EOL is not safe for production systems. Once a version reaches end of life, newly discovered CVEs are published publicly but never patched — leaving your systems permanently exposed. The only safe path is upgrading to an actively supported Umbraco release.

Question 4

How to upgrade from Umbraco 15 to Umbraco 17.x?

Accepted Answer

To upgrade Umbraco from 15 to 17: (1) review the official migration guide for breaking changes, (2) test your application against the new version in a staging environment, (3) update dependencies that have version constraints, (4) run your full test suite, (5) deploy with a rollback plan. The earlier you start, the more time you have to resolve compatibility issues before EOL.

Question 5

When is the next Umbraco LTS version?

Accepted Answer

Umbraco 17 is the current Long Term Support release, maintained until November 27, 2028. LTS versions are recommended for production deployments that prioritize long-term stability over new features. Plan your upgrades to coincide with LTS releases whenever possible.

Question 6

How long does Umbraco support each version?

Accepted Answer

On average, Umbraco supports each release for approximately 37 months (~3.1 years). LTS releases like Umbraco 17 have extended support windows — maintained until November 27, 2028. The exact EOL date for each version is listed in the table above.

Version	Released	Active support	EOL date	Until EOL	Latest	CVEs	Status
17 LTS	Nov 27, 2025	Nov 27, 2027	Nov 27, 2028	in 902d	17.4.2	—	Active
16	Jun 12, 2025	Mar 12, 2026	Jun 12, 2026	in 3d	16.5.1	—	EOL soon
15	Nov 14, 2024	Aug 14, 2025	Nov 14, 2025	207d ago	15.4.4	—	EOL
14	May 30, 2024	Mar 2, 2025	May 30, 2025	375d ago	14.3.4	—	EOL
13 LTS	Dec 14, 2023	Dec 14, 2025	Dec 14, 2026	in 188d	13.14.0	—	Active
12	Jun 29, 2023	Mar 29, 2024	Jun 29, 2024	710d ago	12.3.10	—	EOL
11	Dec 1, 2022	Sep 1, 2023	Dec 1, 2023	921d ago	11.5.0	—	EOL
10 LTS	Jun 16, 2022	Jun 16, 2024	Jun 16, 2025	358d ago	10.8.11	—	EOL
9	Sep 29, 2021	Sep 16, 2022	Dec 16, 2022	1271d ago	9.5.4	—	EOL
8 LTS	Feb 26, 2019	Feb 24, 2024	Feb 24, 2025	470d ago	8.18.15	—	EOL
7 LTS	Nov 21, 2013	Jul 31, 2021	Sep 30, 2023	983d ago	7.15.11	—	EOL
6	Mar 27, 2013	May 1, 2018	May 1, 2018	2961d ago	6.2.6	—	EOL

Umbraco End of Life Dates

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