See [this link](https://web.archive.org/web/20230315050507/https://windsock.io/explaining-docker-image-ids/) for an explanation on why the two methods coexist.
See [this link](https://web.archive.org/web/20230315050507/https://windsock.io/explaining-docker-image-ids/) for an explanation on why the two methods coexist.