- AgentCore now sends traces, prompts, structured logs, and STDOUT to a single per‑agent CloudWatch log group.
- Enables unified observability, simplified IAM/CMK policy scoping, and easier debugging of multi‑agent systems.
- New agents use this by default; existing agents can enable via UNIFIED_TRACES_DESTINATION_ENABLED=true and ADOT ≥ 0.17.1.