What's New in This Guide

This section lists the documentation updates for release 25.1.2xx.

Release 25.1.200- G32780-03, September 2025

• Deleting All Slices in a TAI Using PATCH Remove Operation
  • Updated the details of the old and new behaviors for improved clarity in the explanation. Added a section for enhanced behavior when the feature is disabled.
• Added information about the priority to extract this peer identity in LCI and OCI Headers feature.
• Added steps to disable the Overload Control based on Percentage Discards feature.
• Updated the metric name of ocnssf_state_data_write_error in NSSF Error Metrics section. The updated metric name is ocnssf_state_data_write_error_total.

Release 25.1.200- G32780-02, August 2025

• Removed OcnssfTransactionErrorRateAbove0.1Percent" alert from NSSF Alerts as it is not applicable to NSSF.
• Added the steps for NSSF Alert Configuration when NSSF is deployed with OSO enabled.

Release 25.1.200- G32780-01, July 2025

• Feature Updates:
  • New Features:
    • Support for Automated Certificate Lifecycle Management:
      • Added the "Support for Automated Certificate Lifecycle Management" section to describe the feature.
      • Added the following metric in the NSSF Metrics section:
        • oc_egressgateway_connection_failure_total
        • oc_ingressgateway_connection_failure_total
      • Added the following dimensions for the metrics mentioned above in the Dimensions section, while details of the other applicable dimensions are already available in the same section:
        • error_reason
        • port
  • Enhancements:
    • Deleting All Slices in a TAI Using PATCH Remove Operation
      • Updated the details of the old and new behaviors for improved clarity in the explanation.
    • LCI and OCI Headers
      • Updated the feature background and overview details.
      • Improved content structure by rearranging existing sections.
      • Added details of current scope of this feature and planned enhancements.
    • Deleting Subscription on 404 SUBSCRIPITON_NOT_FOUND Response from AMF
      • Updated the feature background and overview details.
      • Added advantages and use case flow details.
• General Updates:
  • Updated release number to 25.1.200 throughout the document.
  • Updated the details about the behavior of NSSAI Availability Service when none of the S-NSSAIs in the request are authorized by NSSF (either not configured by the operator or restricted by the operator). Previously NSSF responded with 403 Forbidden in such scenarios. However, after introduction of the Deleting All Slices in a TAI Using PATCH Remove Operation feature in release 25.1.1xx, NSSF now responds with 204 No Content in such scenarios.
  • Added the details of a retry mechanism for NSSF sites subscribing to the NRF (nfType, NSSF) in the Georedundancy section.
  • Updated step 5 of Discard Policy Mapping configuration using CNC Console.
  • Added nssf_subscription_to_nrf_successful metric in the NSSF Success Metrics section.
  • Added SubscriptionToNrfFailed alert, which gets triggered if the subscription to NRF is unsuccessful in a georedundant scenario.