In this release, we want to highlight the addition of ScrapeClasses.

ScrapeClasses is an experimental feature that allows declaring multiple scrape configurations in the Prometheus/PrometheusAgent objects that can be consumed by selected scrape-related resources, like ScrapeConfig, ServiceMonitor, PodMonitor and Probes. Initial support only allows the declaration of TLS configuration, but we plan to extend ScrapeClasses with more options in the future, e.g. Authorization, relabelings and scrape protocols.

• [FEATURE] Add ScrapeClasses to Prometheus, PrometheusAgent, ScrapeConfig, ServiceMonitor, PodMonitor and Probe CRDs. #6199
• [FEATURE] Add the enableCompression field to the ScrapeConfig CRD. #6236
• [FEATURE] Add DigitalOcean service discovery to the ScrapeConfig CRD. #6220
• [FEATURE] Add support for scrapeProtocols to the ScrapeConfig, ServiceMonitor and PodMonitor CRDs. #6235 #6268
• [FEATURE] Add support for NS records to the DNS service discovery in the ScrapeConfig CRD. #6235
• [FEATURE] Add support for keepFiringFor in the ThanosRuler CRD. #6283
• [ENHANCEMENT] Enable usage of sharding with ScrapeConfig. #6135
• [BUGFIX] Correctly mount file subpaths in ThanosRuler CRD. #6243
• [BUGFIX] Fix conversion of the continue field in AlertmanagerConfig between v1alpha1 and v1beta1 versions. #6282
• [BUGFIX] Fix failure of metadata informers when processing deleted objects. #6298