CloudWatch Alarms Now Include Tags in Notifications
Amazon CloudWatch now lets you attach alarm tags directly to SNS, Lambda, and EventBridge payloads, so you can route and filter notifications without extra API calls. This is a game-changer for teams managing hundreds of alarms through shared pipelines—your Lambda functions can now identify the owning team or environment straight from the message instead of calling ListTagsForResource each time.
source: [aws/whats-new]