Question: I was unable to find resources to understand how Docker Hub images can be managed.

I have an image tagged with V0.0.1 and built a new one tagged V0.0.2. Now I want to remove the V0.0.1 image as the new version is built differently and I don't want users to pull the old image.

Answer: 
Currently you can't delete a image from hub via command line or web portal. There are open issues:

* **<https://github.com/docker/hub-feedback/issues/68>**
* <https://github.com/docker/hub-feedback/issues/250>
* <https://github.com/docker/docker/issues/8759>
* <https://github.com/docker/docker-registry/issues/7>

Maybe here is a workaround:
[Deleting images from a private docker registry](https://stackoverflow.com/questions/25436742/deleting-images-from-a-private-docker-registry/25551160#25551160)
People have been saying that the feature to delete specific tags from the Docker Hub UI has been removed, but this is inaccurate, it's just a bit more hidden.

1. go to your repository in Docker Hub
2. go to "Tags"
3. at the bottom, click the "see all" link
4. press the "..." menu to the right of the tag you want to delete
5. press "delete"

This will allow you to delete a specific tag on the new version of Docker Hub.