Adding version in compose.yaml file does't make it deprecated. It's just optional to add it or not. https://docs.docker.com/compose/compose-file/03-compose-fi

Adding version in compose.yaml file does't make it deprecated. It's just optional to add it or not. https://docs.docker.com/compose/compose-file/03-compose-file/ https://docs.docker.com/compose/compose-file/03-compose-file... By the way, this is an easy fix and thanks for pointing it out.