Active releases
| Version | LTS | Release Date | Support Phase | Security Phase | End of Life |
|---|---|---|---|---|---|
| 13 | ✅ | December 14, 2023 | May 30, 2024 | December 14, 2025 | December 14, 2026 |
| 15 | ❌ | November 14, 2024 | June 12, 2025 | August 14, 2025 | November 14, 2025 |
| 16 | ❌ | June 12, 2025 | November 27, 2025 | March 12, 2026 | June 12, 2026 |
What is LTS?
Umbraco Long Term Support (LTS) major releases are aligned with Microsoft .NET LTS versions meaning they benefit from a longer support phase which helps to mitigate against security risks and critical issues.
Check out Umbraco's post for more information.
Upcoming releases
| Version | LTS | Release Date | Support Phase | Security Phase | End of Life |
|---|---|---|---|---|---|
| 17 | ✅ | November 27, 2025 | June 11, 2026 | November 27, 2027 | November 27, 2028 |
End-of-life versions
Running Umbraco on any of the following versions is a major ecurity risk, your website must be upgraded.
Umbraco HQ no longer supports these major versions as they are now End of Life.
| Version | LTS | Release Date | End of Life |
|---|---|---|---|
| 7 | ❌ | November 21, 2013 | September 30, 2023 |
| 8 | ❌ | February 26, 2019 | February 24, 2025 |
| 9 | ❌ | September 28, 2021 | December 16, 2022 |
| 10 | ✅ | June 16, 2022 | June 16, 2025 |
| 11 | ❌ | December 1, 2022 | December 1, 2023 |
| 12 | ❌ | June 29, 2023 | June 29, 2024 |
| 14 | ❌ | May 30, 2024 | May 30, 2025 |