2026/04/02 - 3 new 3 updated api methods
Changes CloudWatch now supports OTel enrichment to make vended metrics for supported AWS resources queryable via PromQL with resource ARN and tag labels, and PromQL alarms for metrics ingested via the OTLP endpoint with multi-contributor evaluation.
2026/02/24 - 4 new api methods
Changes This release adds the APIs (PutAlarmMuteRule, ListAlarmMuteRules, GetAlarmMuteRule and DeleteAlarmMuteRule) to manage a new Cloudwatch resource, AlarmMuteRules. AlarmMuteRules allow customers to temporarily mute alarm notifications during expected downtime periods.
2026/02/13 - 2 updated api methods
Changes Adding new evaluation states that provides information about the alarm evaluation process. Evaluation error Indicates configuration errors in alarm setup that require review and correction. Evaluation failure Indicates temporary CloudWatch issues.
2025/09/09 - 1 new 1 updated api methods
Changes Added a new API - DescribeAlarmContributors API, to retrieve alarm contributors in ALARM state. Added support in DescribeAlarmHistory API to query alarm contributor history
2025/05/21 - 2 updated api methods
Changes Adds support for setting up Contributor Insight rules on logs transformed via Logs Transformation feature.
2024/11/15 - 1 updated api methods
Changes Adds support for adding related Entity information to metrics ingested through PutMetricData.