What's New in This Guide

This section lists the documentation updates for release 26.1.2xx.

Release 26.1.201- G55937-01, July 2026

Feature Updates

New Features
- Setting SBI Message Priority
  - Added the Setting SBI Message Priority section to describe the functionality of the feature.
  - Added the following CNC Console configurations for the feature:
  - Added the following metrics in the NRF NF Metrics section:
    - ocnrf_smp_parsing_error_total
    - ocnrf_smp_no_match_total
  - Added the following metrics in the Egress Gateway Metrics section:
    - oc_egressgateway_smp_parsing_error_total
    - oc_egressgateway_smp_no_match_total
  - Added the following metrics in the Ingress Gateway Metrics section:
    - oc_ingressgateway_smp_parsing_error_total
    - oc_ingressgateway_smp_no_match_total
Added the Automatic Recovery of Missing NRF Database Records Across Georeplicated Sites section for the feature.
Gzip Compression for Cache Data Microservice
- Added the Gzip Compression for Cache Data Microservice section to describe the functionality of the feature.
- Added the following CNC Console parameters:
  - Enable Compression For Subscription To CDS in the NF Management Options
  - Enable Compression For Discovery To CDS in the NF Discovery Options
  - Enable Compression For CDS To CDS in the NRF Growth Options
Efficient Subscription Notification Processing:
- Added the feature description in the Efficient Subscription Notification Processing section.
- Added the ocnrf_active_subscriptions_count metric in the NRF NF Metrics section.
- Added the following dimensions in the NRF Metrics section:
  - SubscrReqNfType
  - SubscrCondType
  - nfSetId
- Added the following KPIs in the Efficient Subscription Notification Processing section:
  - Active Subscriptions per Subscriber NF Type
  - Active Subscriptions per Subscription Condition Type
  - Active Subscriptions per Subscriber NF Type and Subscription Condition Type
- Removed the NfStatusNotify dimension from the ocnrf_db_fallback_total metric in the NRF Cache Data Metrics section because subscription data is now maintained in an in-memory cache.
- Updated the behavior of NfStatusNotify in the Enhanced NRF Set Based Deployment (NRF Growth) and Impacted Service Operations sections.

Enhancements
- Feature Enhancements:
  - Support for cnDBTier Georeplication Configuration and Control APIs in CNC Console
    - Updated the description of the feature in the Support for cnDBTier APIs in CNC Console section.
    - Added the following sections in CNC Console:
      - IP Family Preference for Replication Channel
      - Gracefully Stop and Start Georeplication
  - Increase in Active Subscription Count: Updated the NRF Supported Services section with the maximum number of active NFSubscriptions from 1500 to 2000.
  - Increase in NF Profile Count: Updated the NRF Supported Services section with the maximum number of NF Profile count that NRF supports from 600 NFs to 1000 NF Profiles.
  - Support for TLSv1.3 on Internal API Communication
    - Updated the description for the Ingress and Egress Gateway behavior, removed the Helm configurations added for Ingress and Egress Gateway in the Support for TLSv1.3 on Internal API Communication section.
    - Removed the oc_ingressgateway_ip_addresses_fetch_failure metric from the Support for TLSv1.3 on Internal API Communication and Ingress Gateway Metrics sections as it is no longer supported in Ingress Gateway.
    - Removed the OcnrfIngressGatewayFetchFailureForDestinationIPAddresses alert from the Support for TLSv1.3 on Internal API Communication and Service Level Alerts sections as it is no longer supported in Ingress Gateway.
    - Updated the summary and description for the OcnrfServicesFetchFailureForDestinationIPAddresses alert.
    - Removed the following note "Applicable for nfaccesstoken, nfdiscovery, nfregistration, nfsubscription, nrfartisan, nrfauditor, nrfcachedata, and nrfconfiguration microservices." from the following metrices as it is applicable for all the microservices in the CNC Jetty Metrics section:
      - oc_cnc_jetty_service_discovery_duration_seconds_[suffix]
      - oc_cnc_jetty_service_discovery_fallbacks_total
      - oc_cnc_jetty_service_discovery_up
  - Added the OcnrfEgressGatewayPodStateInDangerOfCongestion and OcnrfEgressGatewayPodStateInCongested alerts in the Egress Gateway Pod Protection Using Rate Limiting and Egress Gateway Pod Protection Using Rate Limiting sections.
  - Added the OcnrfIngressGatewayPodCpuUsageInDangerOfCongestionState and OcnrfIngressGatewayPodInCongestedState alerts in the Ingress Gateway Pod Protection Using Rate Limiting and Ingress Gateway Pod Protection Using Rate Limiting sections.
  - Removed the following note from the Server Header Details section as a strict validation of nfType and nfInstanceId is supported.
    "In case any one or both the values of nfType and nfInstanceId attributes are empty, NRF does not add the server header in the error responses."
  - Added the ONRF-IGW-E184 error code in the Ingress Gateway Service section.
  - Added the Direction dimension for the Table 6-383 KPI in the NRF Service KPIs section.
  - Updated the value of the Direction dimension from egress to egressOut for the following KPIs in the NRF Service KPIs section:
    - Table 6-384
    - Table 6-385
    - Table 6-386
    - Added a note to the load_level metric in the Overload Control section indicating that only the perf-info leader pod metric should be used, based on the isLeader dimension.
    - Updated the following Gateway metric names as part of the Spring Boot (SB) upliftment:
      - Renamed the metric name from oc_ingressgateway_cca_certificate_info to oc_ingressgateway_cca_certificate in the following sections:
        
        CCA Header Validation in NRF for Access Token Service Operation
        
        Ingress Gateway Metrics
        
        OcnrfCcaRootCertificateExpiringIn1Day
        
        OcnrfCcaRootCertificateExpiringIn4Hours
        
        OcnrfCcaRootCertificateExpiringIn5Days
      - Renamed the metric name from oc_ingressgateway_congestion_level_bucket_total to oc_ingressgateway_congestion_level_group_total in the following sections:
        
        Ingress Gateway Pod Protection Using Rate Limiting
        
        Ingress Gateway Metrics
        
        Updated the Congestion Level Bucket KPI expression with the metric name in the Ingress Gateway Pod Protection Using Rate Limiting
      - Renamed the metric name from oc_egressgateway_congestion_level_bucket_total to oc_egressgateway_congestion_level_group_total in the following sections:
        
        Egress Gateway Pod Protection Using Rate Limiting
        
        Egress Gateway Metrics
        
        Updated the Congestion Level Bucket KPI expression with the metric name in the Egress Gateway Pod Protection Using Rate Limiting.
- Documentation Enhancements
  - Added a table with the details about configuration type and status of each feature in the NRF Features section.
  - Updated the existing note for the Default Priority and Priority Header Name parameters in the Pod Protection By Rate Limiting and Pod Protection By Rate Limiting sections.
  - Updated the data type for the Percentage parameter from Integer to Number in the Pod Protection By Rate Limiting and Pod Protection By Rate Limiting sections.
  - Updated the data type for the Priority parameter from String to Integer in the SLF Options section.
  - Updated the attribute name from populateSlfDiscoveredCandidateList to populateSlfCandidateList in the Dynamic Selection of SLF section.
  - Updated the description of all the rate KPIs in the NRF KPIs section.
  - Added information about NF_PROFILE_CHANGED notification behavior and notification payload handling during replication failure conditions in the NRF Last Known Response section.
  - Added a note to the following metrics in the Egress Gateway Metrics section to indicate that certain flags should be set to true to include the dimensions.
    - oc_egressgateway_http_requests_total for including Host dimension.
    - oc_egressgateway_http_responses_total for including DestinationHost and error-reason dimensions.
  - Added Supported Headers appendix to include the supported 3gpp headers.
  - Enhanced the verbiage for description and examples in the Loop Detection and Loop Prevention in NRF Forwarding Scenarios section.
  - Enhanced the feature overview description in the Discovery Parameter Value Based Skip SLF Lookup section.
  - Updated the description for Use Remote Data When Replication Down parameter in the Georedundancy Options section to include the supported service operations.
  - Added Skip SLF Lookup section to describe the feature behavior.
  - Updated the description in the Content-Encoding Header section to describe the response behavior when gzip response compression is disabled.
  - Updated the parameter dependency note to clarify that the Maximum Hop Count value can be greater than or equal to the Maximum SLF Attempts value in the General Options section.