> 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-saas/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 8 SaaS will be upgraded automatically every 3 months, including maintenance and major releases.

**Engines**

Cortex XSOAR maintains backward capability with N-2 engine versions. For example, when Cortex XSOAR 8.9 is GA and deployed (automatically by Palo Alto Networks), we have backward compatibility for Cortex XSOAR engine versions 8.6, 8.7, and 8.8. For more information about upgrading your engine, see [Upgrade an engine](/cortex-xsoar-8-saas/configure-cortex-xsoar/engines/upgrade-an-engine.md).

If upgrading from Cortex XSOAR 6, you must upgrade your engines to Cortex XSOAR 8 within 30 days of the switchover date. For more information, see [Engines](/xsoar-migration-guide/cortex-xsoar-8-saas-migration/migrate-from-cortex-xsoar-6-to-cortex-xsoar-8-saas-using-the-pre-migration-and-migration-wizard/step-3.-run-user-acceptance-tests-uat-using-the-migration-wizard/engines.md).

{% hint style="info" %}
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 8.9, but the engine is running on 8.8, and a bug is found, the fix for the bug will require you to upgrade the engine to 8.6.
{% endhint %}

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

For Cortex XSOAR 6 EoL, see [Cortex XSOAR 6 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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