The Buildkite Agent, an open-source tool designed for executing build and automation tasks on local infrastructure, has launched its stable version 2 after extensive beta testing. This new version introduces several enhancements, including the ability to elastically scale build agents through environment variables and configuration files, allowing for reusable agent machine images and improved management with updated APIs and webhooks. It also offers full Docker support, enabling the creation of Docker-powered build clusters, and customizable build lifecycle hooks to optimize performance and workflows. Additionally, new installer packages have been introduced for various operating systems, along with improvements in network resilience and agent prioritization. Comprehensive updates to the documentation provide detailed guidance on configuration, security, and the use of new features such as build queues and agent prioritization.