Explore a comprehensive 52-minute Devoxx conference talk on redefining Platform as a Service (PaaS) for microservice architectures. Dive into the challenges of managing microservices across different environments and learn how to build, test, and deploy container-based solutions without the burden of platform management. Discover the evolution of Google App Engine from its original sandboxed runtime to a next-generation platform for modern applications. Through multiple demonstrations, examine new and enhanced App Engine features, including staged deployment of both simple applications and complex microservice architectures. Gain insights into Java EE, virtual machines, deployment strategies, and various Google Cloud tools such as Cloud SDK, Developer Console, and Google Cloud Shell. Explore topics like API design, GRPC, polyglot development, and backwards compatibility while understanding how these concepts apply to efficient microservice management and development.