Umbraco 15 · Version Status
Umbraco 15 End of Life Date
Umbraco 15 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Umbraco 15 is past end of life. This version no longer receives security patches. 176 days past EOL — migrate to a supported version immediately.
EOL Date
Nov 14, 2025
176 days past EOL
Latest Release
15.4.4
Standard release
Release Date
Nov 14, 2024
Umbraco 15 series
| Version | Latest | EOL Date | Status |
|---|
| 6 |
6.2.6 |
May 1, 2018 |
EOL |
| 7 LTS |
7.15.11 |
Sep 30, 2023 |
EOL |
| 8 LTS |
8.18.15 |
Feb 24, 2025 |
EOL |
| 9 |
9.5.4 |
Dec 16, 2022 |
EOL |
| 10 LTS |
10.8.11 |
Jun 16, 2025 |
EOL |
| 11 |
11.5.0 |
Dec 1, 2023 |
EOL |
| 12 |
12.3.10 |
Jun 29, 2024 |
EOL |
| 13 LTS |
13.14.0 |
Dec 14, 2026 |
Active |
What does Umbraco 15 end of life mean?
When Umbraco 15 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Umbraco 15 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Umbraco 17 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Umbraco 15 reach end of life?
Umbraco 15 reached end of life on November 14, 2025. This version is no longer receiving security patches.
Is Umbraco 15 still supported?
No. Umbraco 15 reached end of life on November 14, 2025 and is no longer receiving security patches.
What should I upgrade to from Umbraco 15?
The recommended upgrade from Umbraco 15 is
Umbraco 17 — the latest actively supported version. Check the
Umbraco full timeline for all supported versions.
What are the security risks of running Umbraco 15 past EOL?
When Umbraco 15 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL Umbraco should migrate immediately or implement compensating controls.