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: 
I've finally found how to do it in 2020!

You can't remove a tag from the "Tags" page right now but there is still a way:

1. Go to the image page on Dockerhub
2. Click on "Manage repository"
3. Click on "See all" under "Tags and Scans"
4. Now you can check the tags and use the action "Delete"
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)