• [CHANGE] Flag "storage.tsdb.no-lockfile" will now default to false. #4066
• [CHANGE] Remove app.kubernetes.io/version label selector from Prometheus and Alertmanager statefulsets. #4093
• [CHANGE] Exit if the informers cache synchronization doesn't complete after 10 minutes. #4143, #4149
• [FEATURE] Added web TLS configuration support for Prometheus. #4025
• [FEATURE] Add proxy_url support for Probes. #4043
• [ENHANCEMENT] Set proper build context in version package. #4019
• [ENHANCEMENT] Publish images on GitHub Container Registry. #4060
• [ENHANCEMENT] Automatically generate document for operator executable. #4112
• [ENHANCEMENT] Adds configuration to set the Prometheus ready timeout to Thanos sidecar #4118
• [BUGFIX] Fixed bug in Alertmanager config where URLS that are taken from Kubernetes secrets might contain whitespace or newline characters. #4068
• [BUGFIX] Generate correct scraping configuration for Probes with empty or unset module parameter. #4074
• [BUGFIX] Operator does not generate max_retries option in remote_write for Prometheus version 2.11.0 and higher. #4103
• [BUGFIX] Preserve the dual-stack immutable fields on service sync. #4119