3653999 - How to Upgrade to JDK 21 and Spring 6 — Framework Update Guide and Known Issues

The September 2025 framework update introduces significant changes to SAP Commerce Cloud, including an upgrade to JDK 21, Spring 6, and the removal of certain deprecated extensions.

This KBA provides general upgrade guidance for the JDK 21 framework update and consolidates known issues, critical considerations, and related resources in one place.

The issues listed vary in urgency. Items marked (Critical) can directly impact a live production environment and must be reviewed before initiating the upgrade. The remaining items are conditional and typically surface during development and testing, where they can be resolved as part of the standard migration process.

NOTE: Many critical issues are production-only. Production data volumes, legacy user password hashes, corporate SSO/IdP configurations, CDN/custom DNS setups, and Punchout integrations cannot be reproduced in lower environments. Plan for explicit production validation.

SAP Commerce Cloud 2211 JDK 21

ccv2, hybris , KBA , CEC-SCC-PLA-PL , Platform , How To