The testing docker image has been split up. Instead of having one image with all supported versions of zsh installed, we now have a separate image for each supported zsh version.
We use GitHub Action matrices to run jobs in parallel for all of the supported versions.
We no longer need to publish images to Docker Hub. The images are just built by CI (or developers) as needed from the Dockerfile in the repo.
The testing docker image has been split up. Instead of having one image with all supported versions of zsh installed, we now have a separate image for each supported zsh version.
We use GitHub Action matrices to run jobs in parallel for all of the supported versions.
We no longer need to publish images to Docker Hub. The images are just built by CI (or developers) as needed from the Dockerfile in the repo.