The text discusses the first release candidate of Docker 1.12, highlighting several new features, including built-in orchestration, self-healing services, and zero-configuration security. It explains how to create a Distributed Application Bundle (DAB) from Docker Compose and deploy it as a Docker Stack in Swarm Mode, which is a new multi-service distributable image format introduced in this version. The document provides a practical guide on using Docker Compose files to generate a DAB, deploy it using the Docker Swarm, and manage services with the Docker Engine's self-healing capabilities. The text also describes the experimental nature of these features in the release candidate, and illustrates the deployment process with a Java EE application example, showcasing the ease of service replication and load balancing while maintaining application resilience.