Rally 1.0.0, a benchmarking tool specifically designed for Elasticsearch, has been released after over two years of development involving more than 1,400 commits from 27 contributors. This release includes a load generator and an optional component to configure an Elasticsearch cluster, supporting versions from 1.x to the latest 6.3 release. Rally allows users to define their own benchmark scenarios, known as "tracks," to achieve realistic results while providing basic reporting and an optional Elasticsearch metrics store for comprehensive documentation and custom visualizations. The tool's built-in telemetry offers deeper insights into cluster performance, and future plans include simplifying benchmark creation and enhancing reporting features like a dashboard generator. The release signifies a significant milestone, with ongoing ambitions to further improve the tool's capabilities for Elasticsearch performance evaluations.