Sentry has introduced Metric Alerts, which allows developers to monitor the overall health of their app or specific parts of it by filtering on event tags or attributes and setting thresholds for warning and critical alerts. This feature provides visibility into error patterns, helping teams eliminate redundant alerts and enabling them to focus on actual issues. With Metric Alerts, users can view active and resolved alerts, send notifications to email and Slack, and jump into a curated Discover view to root-cause problems quickly.