* [Jaeger v2.19.0](https://github.com/jaegertracing/jaeger) – Distributed tracing platform for monitoring and troubleshooting microservices. * [Datadog Trace Client v2.35.0](https://github.com/DataDog/dd-trace-rb) – Client library for tracing and monitoring Ruby applications. * [apm-agent-go v2.7.12](https://github.com/elastic/apm-agent-go) – Go library that traces application execution and sends performance metrics and errors to the Elastic APM server.