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 an extended 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
| 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 |