v3.2.1

Spotlight

• Send custom metrics, logs, and traces from runner jobs through a ready-to-use local OpenTelemetry endpoint at 127.0.0.1:4318. The collector runs on every runner; forwarding to the configured OTLP endpoint requires extras=otel.

CloudFormation

• No CloudFormation-specific changes.

Terraform

• Fix app_tag = null in Fleet so it uses the release default instead of failing during template interpolation.

Other fixes

• Make CPU, memory, disk, and I/O bottlenecks easier to identify through Linux runner diagnostics in the agent logs.
• Prevent jobs from waiting while Fleet initializes warm-pool cost data by falling back to cold launches.
• Fix percentage metric charts by respecting OTLP units and using consistent 0–100 axes.
• Stop Fleet from retrying cleanup forever for EC2 instances that no longer exist.

Release resources

• Upgrade guide: https://runs-on.com/guides/upgrade/
• CloudFormation template: https://runs-on.s3.eu-west-1.amazonaws.com/cloudformation/template-v3.2.1.yaml