Hi @Tschebbischeff, I understand your concern and the need for clarification. I have asked our fleet operations team to address the matter and we will get back to you soon. As for the commands used to locate and delete the old/unused balena supervisor image on a host OS terminal, they were:
balena-engine images - lists the images
balena-engine ps - lists running containers
balena-engine rmi <imageName:Tag> - deletes the specified image
I had observed that there were two images named ‘balena/armv7hf-supervisor’ (with different tags), but only one balena supervisor container running off one of the images. The fix was then to delete the unused balena supervisor image.