Taking into account continuous reorganization and enhancement of Mirantis Container Runtime (MCR), certain components are deprecated and eventually removed from the product. Such deprecations for MCR 20.10.x include:
Deprecated support for the registry-cli plugin.
Deprecated support for the docker app plugin.
Deprecated support for encrypted TLS private keys.
Kubernetes stack support is deprecated.
In correlation with the End of Life date for MKE 3.2.x and MSR 2.7.x, Mirantis stopped maintaining the associated documentation set on 2021-07-21.
Initiating docker pull requests against non-compliant registries that do not support pull-by-digest is deprecated.
KernelMemory (docker run --kernel-memory) is deprecated.
The aufs storage driver is deprecated.
The --cluster-advertisea, --cluster-store, and --cluster-store-opt flags are deprecated from the dockerd CLI.
The legacy Dockerfile ENV name value syntax is deprecated. Use ENV name=value instead.
The distribution manifest v2 schema 1 is now disabled on push.
MalformedHostHeaderOverridehack has been removed, causing CLI v1.12 and earlier to break.
The docker engine subcommands have been removed.
The top-level docker deploy command and .dab (“Docker Application Bundle”) file format have both been removed in favor of using docker stack deploy with compose files.
The docker search --automated and docker search --stars flags have been removed in favor of using their docker search --filter equivalents.
Use of reserved namespaces in engine labels is deprecated.