> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/cortex-xsoar-8-on-prem/8.8/troubleshoot-and-reference/reference/product-support-lifecycle.md).

# Product support lifecycle

Cortex XSOAR's support and End-of-Life (EoL) policies depend on your version.

#### Cortex XSOAR 8 support and EoL

Cortex XSOAR On-prem versions are generally available for upgrade every 3 months.

| Cortex XSOAR version | EOL                |
| -------------------- | ------------------ |
| 8.10                 | July 30, 2026      |
| 8.9                  | April 7, 2026      |
| 8.8                  | January 5, 2026    |
| 8.7                  | September 17, 2025 |
| 8.6                  | July 14, 2025      |
| 8.5                  | April 1, 2025      |

**Engines**

Cortex XSOAR maintains backward compatibility with N-2 engine versions. For example, when Cortex XSOAR 8.6 is GA and deployed, we have backward compatibility for Cortex XSOAR engine versions 8.4, 8.5, and 8.6. For more information about upgrading your engine, see [Upgrade an engine](/cortex-xsoar-8-on-prem/8.8/configure-cortex-xsoar/engines/upgrade-an-engine.md).

Also, make sure that the Cortex XSOAR tenant version is not EoL. For example, if you are running Cortex XSOAR 8.8, but 8.7 is EoL, the 8.7 engine is not supported.

{% hint style="info" %}

### Note

It is highly recommended to run engines on the latest version. New features, performance improvements, and bug fixes are only provided on the tenant's version. For example, if the tenant is running on 8.8, but the engine is running on 8.6, and a bug is found, the fix for the bug will require you to upgrade the engine to 8.8.
{% endhint %}

#### Cortex XSOAR 6 On-prem support and EoL

For Cortex XSOAR 6 EoL, see [Product Support Lifecycle](/xsoar-6-administrator-guide/6.14/learn-about-cortex-xsoar/get-started-in-cortex-xsoar/product-support-lifecycle.md).

You can continue using a version that is EoL.


---

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