What's New in This Guide

This section introduces the new and updated features for release 26.1.2xx.

Release 26.1.202 - G58218-04, November 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.
• Updated audit configuration and schedule documentation to describe audit-job de-registration and cleanup when stale-session handling is disabled in Management Service and Audit Schedule Data.
• Added the following metrics under Audit Service Metrics:
  • config_client_audit_success_total
  • configclient_polling_failure_total
  • configclient_topic_load_failure_total

Release 26.1.201 - G58218-03, September 2026

Removed the Optimizing Lookup in BSF Management Service Database feature.

Release 26.1.201 - G58218-02, September 2026

Updated the BSF Architecture image in the section BSF Architecture.

Release 26.1.201 - G58218-01, August 2026

• Feature Updates:
  • New Features:

    • Diameter Gateway Connection Repaving

      • Added Diameter Gateway Connection Repaving to describe the Diameter Gateway Connection Repaving feature that provides a controlled mechanism to re-balance Diameter connections across the cluster without restarting services or causing a complete outage.
      • Added Diameter Repaving to describe Diameter Gateway connection repaving configuration.
      • Added the following advanced settings keys to Settings:
        • DGW_CONNECTION_REPAVING.MAX_STAGGER_JITTER_MS
        • DGW_CONNECTION_REPAVING.REINVOCATION_DELAY_MIN
        • DGW_CONNECTION_REPAVING.CONNECTION_DISCONNECT_INTERVAL_MS
        • DGW_CONNECTION_REPAVING.DPR_DELAY_MS
        • DGW_CONNECTION_REPAVING.DPR_DISCONNECT_CAUSE
      • Added diam_repaving_disconnections_total metric to Diameter Gateway Metrics that counts the total number of connections terminated by the "force disconnect" mechanism.
    • Security Context
      • Added Security Contextwhich applies Kubernetes pod and container security-context settings to strengthen the security posture of BSF deployments.
• Enhancements:
  • Feature Enhancements
    • Diameter Session Retry
      • Added details about Diameter Message Retry support for message types Rx-STR, RX-RAR and Rx-ASR in the section Diameter Session Retry.
      • Updated the dimensions of the following metrics:
        • ocbsf_query_request_count_total
        • ocbsf_query_response_count_total
        • ocbsf_diam_request_network_total
        • ocbsf_diam_request_inter_total
      • Added the follwing alerts in the List of Alerts section:
        • RAA_RX_FAIL_COUNT_EXCEEDS_CRITICAL_THRESHOLD
        • RAA_RX_FAIL_COUNT_EXCEEDS_MAJOR_THRESHOLD
        • RAA_RX_FAIL_COUNT_EXCEEDS_MINOR_THRESHOLD
        • STA_RX_FAIL_COUNT_EXCEEDS_CRITICAL_THRESHOLD
        • STA_RX_FAIL_COUNT_EXCEEDS_MAJOR_THRESHOLD
        • STA_RX_FAIL_COUNT_EXCEEDS_MINOR_THRESHOLD
        • ASA_RX_FAIL_COUNT_EXCEEDS_CRITICAL_THRESHOLD
        • ASA_RX_FAIL_COUNT_EXCEEDS_MAJOR_THRESHOLD
        • ASA_RX_FAIL_COUNT_EXCEEDS_MINOR_THRESHOLD
    • Stale Session Audit Retry:
      • Added details about session retry support for stale session audit in the section Handling Stale Session in BSF.
      • :
        • ocpm_send_internal_failure_total
        • ocbsf_ar_request_total
        • ocbsf_ar_response_total
        • ocbsf_ar_failure_total
        • ocpm_nfDiscovery_request_total
        • ocpm_nfDiscovery_response_total
      • Added the following alerts in the List of Alerts section:
        • AUDIT_STALE_NOTIFY_404_RESPONSE_CRITICAL
        • AUDIT_STALE_NOTIFY_404_RESPONSE_MAJOR
        • AUDIT_STALE_NOTIFY_404_RESPONSE_MINOR
      • Updated the following alerts:
        • AUDIT_STALE_NOTIFY_ERROR_RESPONSE_MINOR
        • AUDIT_STALE_NOTIFY_ERROR_RESPONSE_MAJOR
        • AUDIT_STALE_NOTIFY_ERROR_RESPONSE_CRITICAL
    • Support for cnDBTier APIs in CNC Console
      • Updated the Support for cnDBTier APIs in CNC Console section with details of the APIs IP Family Reference and Gracefully Start and Stop Georeplication.
      • Added the sections IP Family Preference and Gracefully Stop and Start Georeplication to Viewing cnDBTier APIs in CNC Console.
• General Updates:
  • Added ocbsf_mesh_map_missing_dgw_peer_connection_total to count the number of times the DGW_IP_ADDRESS entry in the mesh map is detected as missing.
  • Added ocbsf_oc_egressgateway_resolve_fqdn_from_ars_failure_total to count Egress Gateway failures to resolve an SCP peer’s FQDN through DNS SRV lookup from ARS.
  • Added the alert EGRESS_GATEWAY_DNS_RESOLUTION_FAILURE.