I have a running installation of Piwigo via docker. I stopped all containers, I even deleted all images, containers, btrfs-subvolumes and made a complete reinstall of docker with a cleaned /var/lib/docker directory and with newly pulled images. But after that Piwigo still shows me a version number of 2.9.5. I did not removed the config directory because I did not want to loose my setup of Piwigo.
So, what did I do wrong? Do I have to clean up my config directory in order to get 2.10.1? Or do I have to update via the webfrontend of Piwigo?