Docker v29, Fix: Traefik Error — Client Version Too Old

After a recent Docker update, Traefik started failing to connect to the Docker daemon and shows this error:

Error response from daemon: client version 1.24 is too old. Minimum supported API version is 1.44, please upgrade your client to a newer version" providerName=docker

This happens because Docker now expects a higher minimum API version, while Traefik is still using an older one.

Solution

Edit the Docker service configuration:

sudo systemctl edit docker.service

Add the following lines above the line ### Lines below this comment will be discarded:

[Service]
Environment=DOCKER_MIN_API_VERSION=1.24

Save and exit the editor, then restart Docker:

sudo systemctl restart docker

Update

traefik released new version v3.6.x with Docker API version auto negotiation. Just bump the version of treafik deployment to v3.6.x.