People asked for the feature to be disabled. There was a lengthy discussion in GH [0] aptly named "Please don't upgrade docker without asking first" few months back regarding why this shouldn't happen (auto updates, that is).
Considering that the team that codes the software acknowledged they screwed up [1] having to pay for this I have to agree with the comment that says this amounts to ransomware. "Pay us or risk getting f*ked up by our updates".
[0] https://github.com/docker/roadmap/issues/183 [1] https://github.com/docker/roadmap/issues/183#issuecomment-74...