What's New in This Guide

This section introduces the new and updated features for release 25.2.2xx.

Release 25.2.202 - G48543-02, October 2026

Updated Diameter Gateway Metrics to separate aggregate and host-level histogram views, reducing Prometheus cardinality and replacing origHost and destHost dimensions with host and hostRole in the new host-specific metrics.

Release 25.2.200 - G48543-01, March 2026

Feature Updates:
- New Features:
  - Support for SBI Message Priority Header:
    - Added Support for SBI Message Priority Header to describe how BSF supports 3gpp-Sbi-Message-Priority header to enable overload and congestion control through informed throttling decisions.
    - Added Message Profiles to describe configuration of message priority profiles using CNC Console.
    - Added Message Priority Profile to Management Service, which is used to specify the message priority profile to be used for traffic prioritization at BSF SBI.
    - Added NRF Agent Service to describe the NRF agent service configurations.
    - Added the following metrics to BSF Management Service that provides the statistics on the total number of requests received and requests sent by BSF, total number of responses sent by BSF and responses received by BSF during register, deregister, discovery, and stale session scenarios:
      - ocbsf_http_message_priority_request_count_total
      - ocbsf_http_message_priority_response_count_total
    - Added nrfclient_nw_conn_out_request_total metric to NRF Client Metrics that provides the total number of requests sent out through NRF Client to the NRF.
  - Application Framework Change:
    - Added Application Framework Change to describe the impacts after replacing Spring Boot with Micronaut.
Enhancements:
- Feature Enhancements
  - Support for cnDBTier APIs in CNC Console
    - Added the details for Georeplication Status Across All Sites API in the Support for cnDBTier APIs in CNC Console section.
    - Added the Georeplication Status Across All Sites section to describe how to retrieve the georeplication status across all configured sites in cnDBTier cluster.
General Updates:
- Updated the metrics name as follows in the BSF Management Service section:
  - From ocbsf_bindingQuery_request_total to ocbsf_binding_query_request_total.
  - From ocbsf_bindingQuery_response_total to ocbsf_binding_query_response_total.
  - From ocbsf_bindingDelete_request_total to ocbsf_binding_delete_request_total.
  - From ocbsf_bindingDelete_response_total to ocbsf_binding_delete_response_total.
- Updated the summary and condition for the "BSF_CONNECTION_FAILURE" in the BSF_CONNECTION_FAILURE section.
- Updated the description and expression for the following alerts:
- Updated the description and severity of the "NRF_SERVICE_REQUEST_FAILURE" alert in the NRF_SERVICE_REQUEST_FAILURE section.
- Updated the severity of the alert "NRF_COMMUNICATION_FAILURE" from Info to Critical in the NRF_COMMUNICATION_FAILURE section.
- Updated the description, summary, and condition for the "DIAM_RESPONSE_NETWORK_ERROR_MINOR" alert in the DIAM_RESPONSE_NETWORK_ERROR_MINOR section.
- Updated the description, summary, and condition for the following alerts:
- Updated the summary and condition for the "SCP_PEER_SET_UNAVAILABLE" alert in the SCP_PEER_SET_UNAVAILABLE section.
- Added the "AUDIT_NOT_RUNNING" alert in the AUDIT_NOT_RUNNING section.
- Added the following alerts in the List of Alerts section:
- Updated the OID number for the following alerts:
- Updated the OID number and description for the following alerts:
- Updated the OID number and severity of the alert in BINDING_QUERY_RESPONSE_ERROR_CRITICAL section.
- Added ocbsf_ocnf_service_cookie_total metric to Diameter Gateway Metrics to support optimization of N7 session looks up for Rx call flows.
- Updated the alerts name as follows:
- ocbsf_ocnf_service_cookie_total metric is added to Diameter Gateway Metrics, which is used to get the count of responses received with ocnfServiceCookie in the header and the count of outgoing requests with OCNF-Service-Cookie custom AVP.