During a build of a Docker image, I've noticed MAINTAINER is now deprecated in favour of LABEL.

MaintainerDeprecated: Maintainer instruction is deprecated in favor of using label (line 6)

The label for maintainer is an OCI one: org.opencontainers.image.authors

References:

• https://github.com/opencontainers/image-spec/blob/main/annotations.md
• https://www.docker.com/blog/docker-best-practices-using-tags-and-labels-to-manage-docker-image-sprawl/