Datadog APM now supports custom instrumentation for AWS Lambda using the OpenTelemetry Tracing API, allowing developers to capture full end-to-end traces from any W3C-compliant service and gain enhanced visibility into their serverless applications. This feature complements OTel API support in Datadog's APM tracing libraries for non-serverless applications. With complete support for W3C trace header propagation across all runtimes, developers can achieve granular visibility without compromising data portability and interoperability.