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AWS bedrock-agentcore documentation change

Service: bedrock-agentcore · 2026-07-10 · Documentation low

File: bedrock-agentcore/latest/devguide/release-notes.md

Summary

Added July 2026 release note about ActiveSessionCount metric for monitoring AgentCore sessions

Security assessment

Operational monitoring feature addition without security vulnerability fixes or security feature documentation

Diff

diff --git a/bedrock-agentcore/latest/devguide/release-notes.md b/bedrock-agentcore/latest/devguide/release-notes.md
index 451e437f2..4407daa9f 100644
--- a//bedrock-agentcore/latest/devguide/release-notes.md
+++ b//bedrock-agentcore/latest/devguide/release-notes.md
@@ -7 +7 @@
-June 2026May 2026April 2026March 2026February 2026January 2026December 2025November 2025October 2025September 2025July 2025
+July 2026June 2026May 2026April 2026March 2026February 2026January 2026December 2025November 2025October 2025September 2025July 2025
@@ -12,0 +13,6 @@ We recommend subscribing to the RSS feed so updates to these notes are delivered
+## July 2026
+
+### Runtime and Built-in Tools: ActiveSessionCount Metric
+
+AgentCore runtime and built-in tools now publish an `ActiveSessionCount` metric directly to your AWS account in the `AWS/Bedrock-AgentCore` CloudWatch namespace. This real-time gauge shows how many sessions are currently active, published once per minute per service type. Use the `Service` dimension — with values `AgentCore.Runtime`, `AgentCore.CodeInterpreter`, or `AgentCore.Browser` — to filter by workload type. Use this metric to monitor capacity utilization, set CloudWatch alarms for unexpected usage spikes, and understand your session quota consumption. Available in all AWS Regions where AgentCore runtime is available. See [AgentCore runtime metrics](https://docs.aws.amazon.com/bedrock-agentcore/latest/devguide/observability-runtime-metrics.html).
+