• [CHANGE] Use narrower selectors for StatefulSet informers in Alertmanager and ThanosRuler controllers. It is recommended to upgrade from v0.85.0 (at least). #8246
• [CHANGE] Reject EC2/Lightsail SD for Prometheus >= 3.8.0 in ScrapeConfig CRD. #8175
• [FEATURE] Add podManagementPolicy field to Prometheus, PrometheusAgent, Alertmanager and ThanosRuler CRDs. #8119
• [FEATURE] Add updateStrategy field to Prometheus, PrometheusAgent, Alertmanager and ThanosRuler CRDs. #8202
• [FEATURE] Add scrapeNativeHistograms field to Prometheus, PrometheusAgent, ServiceMonitor, PodMonitor, Probe and ScrapeConfig CRDs. #8102
• [FEATURE] Add scope field to AzureAD remote write configuration. #8240
• [FEATURE] Add workloadIdentity field to AzureAD remote write configuration. #7998
• [FEATURE] Add support for PrometheusRule fields groupLabels and queryOffset in ThanosRuler. #8137
• [FEATURE] Add slackAppToken and slackAppUrl fields to Alertmanager global config for Slack App support. #8238
• [FEATURE] Add incident.io receiver support to Alertmanager config secret. #8190 #8245 #8228
• [FEATURE] Add Mattermost receiver support to Alertmanager config secret. #8188
• [FEATURE] Add apiType field to Jira receiver in Alertmanager config secret. #8218
• [FEATURE] Add timeout field to PagerDuty receiver in AlertmanagerConfig CRD. #8162
• [FEATURE] Add timeout field to Slack receiver in AlertmanagerConfig CRD. #8161
• [ENHANCEMENT] Use minReadySeconds to set --dispatch.start-delay in Alertmanager. #8177 #8201
• [ENHANCEMENT] Expose native histograms in operator metrics. #8194
• [ENHANCEMENT] Add NoSelectedResources reason to status conditions. #8124
• [ENHANCEMENT] Add enableHttp2 and followRedirects fields to HTTP configuration for Probe CRD. #8112
• [ENHANCEMENT] Add CEL validations for DaemonSet mode in PrometheusAgent CRD (requires the PrometheusAgentDaemonSetFeature featuregate). #7881
• [ENHANCEMENT] Improve validation for Pushover, PagerDuty and VictorOps receivers in AlertmanagerConfig CRD. #8239 #8113 #8220
• [ENHANCEMENT] Add apiURL validation for WeChat, OpsGenie and Telegram receivers in AlertmanagerConfig CRD. #8196 #8206 #8199
• [ENHANCEMENT] Validate URL fields in AlertmanagerConfig receivers (MSTeams, Webhook). #8231 #8125
• [ENHANCEMENT] Validate URL fields in Alertmanager configuration secret (WeChat, Telegram, Pushover receivers). #7977 #8233 #8232

New Contributors

• @MichalTomczakSE made their first contribution in #8144
• @kartikangiras made their first contribution in #8098
• @varundeepsaini made their first contribution in #8207
• @tomlin7 made their first contribution in #8209
• @fluktuid made their first contribution in #8248

• [BUGFIX] Fix the generated Alertmanager configuration for html and monospace fields of pushoverConfig receiver in AlertmanagerConfig CRD. #8153

• [FEATURE] Add status subresource for PrometheusRule custom resources (requires the StatusForConfigurationResources feature gate). #8069 #8086 #8024 #8005
• [ENHANCEMENT] Avoid statefulset's rollout due to changes in the number of rule configmaps for Prometheus and ThanosRuler. #8010
• [ENHANCEMENT] Support Azure system-assigned managed identities for remote-write configuration. #7815
• [ENHANCEMENT] Add monospace field to to pushoverConfig receiver in AlertmanagerConfig CRD. #8018
• [BUGFIX] Propagate Certificate Authority updates for HTTP configuration in Alertmanager's global configuration. #8089

• [CHANGE/BUGFIX] Fix operator's permissions to emit Kubernetes events. #8077

• [BUGFIX] Fix formatting of Kubernetes events. #8015

• [CHANGE] Remove automatic addition of the metadata-wal-records feature flag for Prometheus versions >= 3.4. #7893
• [CHANGE] Add miscellaneous validations to the ScrapeConfig CRD. #7856 #7823 #7835 #7838 #7838 ##7966
• [CHANGE/FEATURE] Add support for UTF-8 characters to label names and metric names in PrometheusRule resources and relabel configurations. #7637 #7985
• [FEATURE] Add the flag --name-validation-scheme to admission webhook to select between utf8 and legacy validations. #7985
• [FEATURE] Add status subresource for ServiceMonitor custom resources (requires the StatusForConfigurationResources feature gate). #7767 #7836 #7827 #7795
• [FEATURE] Add status subresource for PodMonitor custom resources (requires the StatusForConfigurationResources feature gate). #7929 #7914 #7936
• [FEATURE] Add status subresource for ScrapeConfig custom resources (requires the StatusForConfigurationResources feature gate). #7958 #7964 #7969
• [FEATURE] Add status subresource for Probe custom resources (requires the StatusForConfigurationResources feature gate). #7933 #7934 #7980
• [FEATURE] Add serviceDiscoveryRole field to ServiceMonitor. #7982
• [FEATURE] Add useFIPSSTSEndpoint field to Sigv4 config. #7987
• [FEATURE] Add UnderscoreEscapingWithoutSuffixes to the translationStrategy field for the Prometheus and PrometheusAgent CRDs. #7947
• [FEATURE] Add promoteScopeMetadata field to the Prometheus and PrometheusAgent CRDs. #7803
• [FEATURE] Add enableHttp2 field to Alertmanager and AlertmanagerConfig CRDs. #7963
• [ENHANCEMENT] Add the related object to the events emitted by the operator. #7867 #7953
• [ENHANCEMENT] Add webhook validation for the MSTeams V2 receiver of AlertmanagerConfig CRD. #7906
• [ENHANCEMENT] Add app.kubernetes.io/managed-by: prometheus-operator label to all managed resources. #7939
• [BUGFIX] Prevent duplicate authentication settings in PodMonitor. #7975
• [BUGFIX] Use distinct port name for the config-reloader init container to avoid duplicate port name warnings. #7904
• [BUGFIX] Validate the PagerDuty URL in the Alertmanager's global configuration. #7945

• [CHANGE/BUGFIX] Add the --watch-referenced-objects-in-all-namespaces CLI argument. When enabled, the operator watches for secrets and configmaps in both workload and configuration resources. It ensures that reconciliation happens when a referenced secret/configmap is updated. #7615
• [FEATURE] Add resendDelay field to the ThanosRuler CRD. #7753
• [FEATURE] Add ruleGracePeriod field to the ThanosRuler CRD. #7750
• [FEATURE] Add enableFeatures field to the ThanosRuler CRD for enabling feature flags. #7754
• [FEATURE] Add params field to the Probe CRD. #7755
• [FEATURE] Add hostUsers field to the Prometheus, PrometheusAgent, Alertmanager and ThanosRuler CRDs. #7768 #7769 #7771
• [FEATURE] Add promoteAllResourceAttributes and ignoreResourceAttributes fields to Prometheus and PrometheusAgent CRDs. #7669
• [FEATURE] Add -kubelet-sync-period argument to customize the kubelet controller's synchronization interval. #7762
• [FEATURE] Add Rocket.Chat receiver to AlertmanagerConfig CRD. #7328
• [ENHANCEMENT] Add well-known Kubernetes labels to workload objects managed by the operator (StatefulSet and DaemonSet). #7786
• [ENHANCEMENT] Add workqueue metrics. #7776
• [ENHANCEMENT] Optimize statefulset informers. #7766
• [BUGFIX] Use named ports for the managed Alertmanager service. #7517
• [BUGFIX] Support send_resolved field for JIRA and RocketChat receivers in the Alertmanager configuration. #7772

• [CHANGE/BUGFIX] Disable compaction of overlapping blocks when Thanos sidecar is configured with object storage. #7747
• [BUGFIX] Log only selected resources which are valid. #7749

• [FEATURE] Add telegram field to AlertManager CRD global configuration. #7631
• [FEATURE] Add jira field to AlertManager CRD global configuration. #7626
• [FEATURE] Add webex field to AlertManager CRD global configuration. #7632
• [FEATURE] Add victorops field to Alertmanager CRD global configuration. #7654
• [FEATURE] Add wechat field to Alertmanager CRD global configuration. #7627
• [FEATURE] Add ruleQueryOffset field to ThanosRuler CRD. #7580
• [FEATURE] Add ruleConcurrentEval field to ThanosRuler CRD. #7659
• [FEATURE] Add ruleOutageTolerance field to ThanosRuler CRD. #7672
• [FEATURE] Add ProxyConfig fields to ServiceMonitor. #7647
• [FEATURE] Add ProxyConfig fields to Probe. #7660
• [FEATURE] Add ProxyConfig fields to Prometheus apiServerConfig. #7670
• [FEATURE] Add scrapeClassicHistograms field to Prometheus. #7667
• [FEATURE] Add labelSelector field to HetznerSDConfig in the ScrapeConfig CRD. #7675
• [FEATURE] Add startupProbe to config-reloader. #7575
• [ENHANCEMENT] Set reason: ConfigurationUnmanaged in the Reconciled condition when the operator doesn't managed the Prometheus configuration. #7661
• [ENHANCEMENT] AlertManager matchType defaults to = if neither matchType nor regex is set, and =~ if regex: true is set without matchType. #7592

• [FEATURE] Add limits option for Alertmanager silences. #7478
• [FEATURE] Add NoTranslation as a translationStrategy option to OTLP config. #7539
• [FEATURE] Add nameEscapingScheme field to Prometheus CRDs. #7538
• [FEATURE] Add convertHistogramsToNHCB field to OTLPConfig. #7533
• [FEATURE] Add convert_classic_histograms_to_nhcb option to Prometheus global config. #7543
• [FEATURE] Add new MetricNameEscapingScheme and MetricNameValidationScheme parameters to ScrapeConfig. #7555
• [ENHANCEMENT] Do not insert sharding relabeling in scrapeConfigs if already present. #7421