Prometheus Operator Files

[!NOTE] The PrometheusTopologySharding and PrometheusShardRetentionPolicy feature gates have been promoted to Beta in this release and are now enabled by default. See the sharding documentation for details.

• [CHANGE] Add URL validation for the tokenUrl field in OAuth2 configuration across all CRDs. [#8579]
• [CHANGE] Add URL validation for the url field in RemoteReadSpec in Prometheus CRD. [#8596]
• [FEATURE] Migrate retention options from CLI flags to the config file for Prometheus CRD (Prometheus >= v3 uses the config file; older versions continue to use CLI flags). [#8547]
• [FEATURE] Add staleSeriesCompactionThreshold field to TSDBSpec in Prometheus and PrometheusAgent CRDs. [#8563]
• [FEATURE] Add labelNameUnderscoreSanitization and labelNamePreserveMultipleUnderscores fields to OTLPConfig in Prometheus and PrometheusAgent CRDs. [#8562]
• [FEATURE] Add payload field to Webhook receiver in AlertmanagerConfig CRD. [#8507]
• [ENHANCEMENT] Use pod topology labels for zone sharding on Kubernetes >= 1.35 when the PrometheusTopologySharding feature gate is enabled (removes the need for attachMetadata.node=true). [#8564]
• [ENHANCEMENT] Add validation for the Slack update_message field in Alertmanager configuration Secret. [#8556]
• [BUGFIX] Validate target labels in Probe static configuration to prevent invalid Prometheus scrape configs. [#7901]
• [BUGFIX] Fix goroutine leak and data race in pollBasedListerWatcher. [#8593]
• [BUGFIX] Validate ProxyConfig in OAuth2 configuration. [#8610]
• [BUGFIX] Fix SMTP smarthost format error handling in Alertmanager configuration. [#8586]
• [BUGFIX] Fix missing return in admission webhook after marshal failure. [#8582]
• [BUGFIX] Fix FindOwner to return nil on meta.Accessor error. [#8585]
• [BUGFIX] Fix dropped gzip Close errors in GzipConfig and GunzipConfig. [#8573]
• [BUGFIX] Fix panic on malformed key=value flag input (e.g. --labels "key"). [#8560]