On the 20th of March 2024 (a week ago at the time of this post), version 26.0.0 of Docker was released. There are a number of changes in this release to be aware of, with one in particular causing issues with all versions of Portainer. Our team are working on fixes for this issue, with a 2.20.1 patch release in testing currently for our 2.20 STS branch and due in a week’s time, as well as a planned inclusion in our next LTS release (2.21), due in a few months time.

This is what it was! 😱