• [FEATURE] Support SNS Receiver in AlertmanagerConfig CR. #4468
• [ENHANCEMENT] Specify SA token automounting on pod-level for operator and prometheus operand. #4514
• [ENHANCEMENT] Support following redirects and Oauth2 in HTTP Client config in raw alertmanager config secret. #4499
• [ENHANCEMENT] Add Replicas column for Thanos Ruler. #4496
• [ENHANCEMENT] Set User-Agent for the kubernetes client. #4506
• [BUGFIX] Avoid race during recreation of StatefulSet(s). #4504
• [BUGFIX] Add validation for proberSpec url field in ProbeSpec. #4483
• [BUGFIX] Add validation for relabel configs. #4429
• [BUGFIX] Add validation for scrapeTimeout validation. #4491