More Deprecated Docker Products and Open-Source Projects: DDC, Dev Environments, Registry, Compose v1, InfraKit, Notary, and SwarmKit

and managing large-scale container environments. It was acquired by Mirantis in 2019, and users looking for enterprise-level functionality can now explore Mirantis Kubernetes Engine or other products offered by Mirantis. Much of the technology and features found in Docker EE have been absorbed into the Mirantis product line. > [!NOTE] > For information about enterprise-level features offered by Docker today, > see the [Docker Business subscription](/manuals/subscription/details.md#docker-business). ### Docker Data Center and Docker Trusted Registry Docker Data Center (DDC) was an umbrella term that encompassed Docker Universal Control Plane (UCP) and Docker Trusted Registry (DTR). These components provided a full-stack solution for managing containers, security, and registry services in enterprise environments. They are now under the Mirantis portfolio following the Docker Enterprise acquisition. Users still encountering references to DDC, UCP, or DTR should refer to Mirantis's documentation for guidance on modern equivalents. ### Dev Environments Dev Environments was a feature introduced in Docker Desktop that allowed developers to spin up development environments quickly. It was deprecated and removed from Docker Desktop version 4.42 and later. Similar workflows can be achieved through Docker Compose or by creating custom configurations tailored to specific project requirements. ## Open source projects Several open-source projects originally maintained by Docker have been archived, discontinued, or transitioned to other maintainers or organizations. ### Registry (now CNCF Distribution) The Docker Registry served as the open-source implementation of a container image registry. It was donated to the Cloud Native Computing Foundation (CNCF) in 2019 and is maintained under the name "Distribution." It remains a cornerstone for managing and distributing container images. [CNCF Distribution](https://github.com/distribution/distribution) ### Docker Compose v1 (replaced by Compose v2) Docker Compose v1 (`docker-compose`), a Python-based tool for defining multi-container applications, has been superseded by Compose v2 (`docker compose`), which is written in Go and integrates with the Docker CLI. Compose v1 is no longer maintained, and users should migrate to Compose v2. [Compose v2 Documentation](/manuals/compose/_index.md) ### InfraKit InfraKit was an open-source toolkit designed to manage declarative infrastructure and automate container deployments. It has been archived, and users are encouraged to explore tools such as Terraform for infrastructure provisioning and orchestration. [InfraKit GitHub Repository](https://github.com/docker/infrakit) ### Docker Notary (now CNCF Notary) Docker Notary was a system for signing and verifying the authenticity of container content. It was donated to the CNCF in 2017 and continues to be developed as "Notary." Users seeking secure content verification should consult the CNCF Notary project. [CNCF Notary](https://github.com/notaryproject/notary) ### SwarmKit SwarmKit powers Docker Swarm mode by providing orchestration for container deployments. While Swarm mode remains functional, development has slowed in favor of Kubernetes-based solutions. Individuals evaluating container orchestration options should investigate whether SwarmKit meets modern workload requirements. [SwarmKit GitHub Repository](https://github.com/docker/swarmkit)

This section details the deprecation of several more Docker products and open-source projects. Docker Data Center (DDC) and Dev Environments are no longer supported. The Docker Registry is now CNCF Distribution, Docker Compose v1 is replaced by Compose v2, InfraKit is archived, Docker Notary is now CNCF Notary, and SwarmKit development has slowed. Users are advised to migrate to the recommended alternatives or explore other tools for similar functionality.