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moby--moby/docs/api/version-history.md
Sebastiaan van Stijn cb3ec99b16
Merge pull request #40491 from thaJeztah/remove_deprecated_filters_opt 
API: remove deprecated "filter" parameter for API v1.41 and up
2020-02-11 11:22:44 +01:00

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title description keywords
Engine API version history Documentation of changes that have been made to Engine API. API, Docker, rcli, REST, documentation

v1.41 API changes

Docker Engine API v1.41 documentation

  • The filter (singular) query parameter, which was deprecated in favor of the filters option in Docker 1.13, has now been removed from the GET /images/json endpoint. The parameter remains available when using API version 1.40 or below.
  • GET /services now returns Capabilities as part of the ContainerSpec.
  • GET /services/{id} now returns Capabilities as part of the ContainerSpec.
  • POST /services/create now accepts Capabilities as part of the ContainerSpec.
  • POST /services/{id}/update now accepts Capabilities as part of the ContainerSpec.
  • GET /tasks now returns Capabilities as part of the ContainerSpec.
  • GET /tasks/{id} now returns Capabilities as part of the ContainerSpec.
  • POST /containers/create on Linux now accepts the HostConfig.CgroupnsMode property. Set the property to host to create the container in the daemon's cgroup namespace, or private to create the container in its own private cgroup namespace. The per-daemon default is host, and can be changed by using theCgroupNamespaceMode daemon configuration parameter.
  • GET /info now returns an OSVersion field, containing the operating system's version. This change is not versioned, and affects all API versions if the daemon has this patch.
  • GET /info no longer returns the SystemStatus field if it does not have a value set. This change is not versioned, and affects all API versions if the daemon has this patch.
  • GET /services now accepts query parameter status. When set true, services returned will include ServiceStatus, which provides Desired, Running, and Completed task counts for the service.
  • GET /services may now include ReplicatedJob or GlobalJob as the Mode in a ServiceSpec.
  • GET /services/{id} may now include ReplicatedJob or GlobalJob as the Mode in a ServiceSpec.
  • POST /services/create now accepts ReplicatedJob or GlobalJobas theModein theServiceSpec.
  • POST /services/{id}/update accepts updating the fields of the ReplicatedJob object in the ServiceSpec.Mode. The service mode still cannot be changed, however.
  • GET /services now includes JobStatus on Services with mode ReplicatedJob or GlobalJob.
  • GET /services/{id} now includes JobStatus on Services with mode ReplicatedJob or GlobalJob.
  • GET /tasks now includes JobIteration on Tasks spawned from a job-mode service.
  • GET /tasks/{id} now includes JobIteration on the task if spawned from a job-mode service.

v1.40 API changes

Docker Engine API v1.40 documentation

  • The /_ping endpoint can now be accessed both using GET or HEAD requests. when accessed using a HEAD request, all headers are returned, but the body is empty (Content-Length: 0). This change is not versioned, and affects all API versions if the daemon has this patch. Clients are recommended to try using HEAD, but fallback to GET if the HEAD requests fails.
  • GET /_ping and HEAD /_ping now set Cache-Control and Pragma headers to prevent the result from being cached. This change is not versioned, and affects all API versions if the daemon has this patch.
  • GET /services now returns Sysctls as part of the ContainerSpec.
  • GET /services/{id} now returns Sysctls as part of the ContainerSpec.
  • POST /services/create now accepts Sysctls as part of the ContainerSpec.
  • POST /services/{id}/update now accepts Sysctls as part of the ContainerSpec.
  • POST /services/create now accepts Config as part of ContainerSpec.Privileges.CredentialSpec.
  • POST /services/{id}/update now accepts Config as part of ContainerSpec.Privileges.CredentialSpec.
  • POST /services/create now includes Runtime as an option in ContainerSpec.Configs
  • POST /services/{id}/update now includes Runtime as an option in ContainerSpec.Configs
  • GET /tasks now returns Sysctls as part of the ContainerSpec.
  • GET /tasks/{id} now returns Sysctls as part of the ContainerSpec.
  • GET /networks now supports a dangling filter type. When set to true (or 1), the endpoint returns all networks that are not in use by a container. When set to false (or 0), only networks that are in use by one or more containers are returned.
  • GET /nodes now supports a filter type node.label filter to filter nodes based on the node.label. The format of the label filter is node.label=<key>/node.label=<key>=<value> to return those with the specified labels, or node.label!=<key>/node.label!=<key>=<value> to return those without the specified labels.
  • POST /containers/create now accepts a fluentd-async option in HostConfig.LogConfig.Config when using the Fluentd logging driver. This option deprecates the fluentd-async-connect option, which remains funtional, but will be removed in a future release. Users are encouraged to use the fluentd-async option going forward. This change is not versioned, and affects all API versions if the daemon has this patch.
  • POST /containers/create now accepts a fluentd-request-ack option in HostConfig.LogConfig.Config when using the Fluentd logging driver. If enabled, the Fluentd logging driver sends the chunk option with a unique ID. The server will respond with an acknowledgement. This option improves the reliability of the message transmission. This change is not versioned, and affects all API versions if the daemon has this patch.
  • POST /containers/create, GET /containers/{id}/json, and GET /containers/json now supports BindOptions.NonRecursive.
  • POST /swarm/init now accepts a DataPathPort property to set data path port number.
  • GET /info now returns information about DataPathPort that is currently used in swarm
  • GET /info now returns PidsLimit boolean to indicate if the host kernel has PID limit support enabled.
  • GET /info now includes name=rootless in SecurityOptions when the daemon is running in rootless mode. This change is not versioned, and affects all API versions if the daemon has this patch.
  • GET /info now returns none as CgroupDriver when the daemon is running in rootless mode. This change is not versioned, and affects all API versions if the daemon has this patch.
  • POST /containers/create now accepts DeviceRequests as part of HostConfig. Can be used to set Nvidia GPUs.
  • GET /swarm endpoint now returns DataPathPort info
  • POST /containers/create now takes KernelMemoryTCP field to set hard limit for kernel TCP buffer memory.
  • GET /service now returns MaxReplicas as part of the Placement.
  • GET /service/{id} now returns MaxReplicas as part of the Placement.
  • POST /service/create and POST /services/(id or name)/update now take the field MaxReplicas as part of the service Placement, allowing to specify maximum replicas per node for the service.
  • GET /containers now returns Capabilities field as part of the HostConfig.
  • GET /containers/{id}/json now returns a Capabilities field as part of the HostConfig.
  • POST /containers/create now takes a Capabilities field to set the list of kernel capabilities to be available for the container (this overrides the default set).
  • POST /containers/create on Linux now creates a container with HostConfig.IpcMode=private by default, if IpcMode is not explicitly specified. The per-daemon default can be changed back to shareable by using DefaultIpcMode daemon configuration parameter.
  • POST /containers/{id}/update now accepts a PidsLimit field to tune a container's PID limit. Set 0 or -1 for unlimited. Leave null to not change the current value.
  • POST /build now accepts outputs key for configuring build outputs when using BuildKit mode.

V1.39 API changes

Docker Engine API v1.39 documentation

  • GET /info now returns an empty string, instead of <unknown> for KernelVersion and OperatingSystem if the daemon was unable to obtain this information.
  • GET /info now returns information about the product license, if a license has been applied to the daemon.
  • GET /info now returns a Warnings field, containing warnings and informational messages about missing features, or issues related to the daemon configuration.
  • POST /swarm/init now accepts a DefaultAddrPool property to set global scope default address pool
  • POST /swarm/init now accepts a SubnetSize property to set global scope networks by giving the length of the subnet masks for every such network
  • POST /session (added in V1.31 is no longer experimental. This endpoint can be used to run interactive long-running protocols between the client and the daemon.

V1.38 API changes

Docker Engine API v1.38 documentation

  • GET /tasks and GET /tasks/{id} now return a NetworkAttachmentSpec field, containing the ContainerID for non-service containers connected to "attachable" swarm-scoped networks.

v1.37 API changes

Docker Engine API v1.37 documentation

  • POST /containers/create and POST /services/create now supports exposing SCTP ports.
  • POST /configs/create and POST /configs/{id}/create now accept a Templating driver.
  • GET /configs and GET /configs/{id} now return the Templating driver of the config.
  • POST /secrets/create and POST /secrets/{id}/create now accept a Templating driver.
  • GET /secrets and GET /secrets/{id} now return the Templating driver of the secret.

v1.36 API changes

Docker Engine API v1.36 documentation

  • Get /events now return exec_die event when an exec process terminates.

v1.35 API changes

Docker Engine API v1.35 documentation

  • POST /services/create and POST /services/(id)/update now accepts an Isolation field on container spec to set the Isolation technology of the containers running the service (default, process, or hyperv). This configuration is only used for Windows containers.
  • GET /containers/(name)/logs now supports an additional query parameter: until, which returns log lines that occurred before the specified timestamp.
  • POST /containers/{id}/exec now accepts a WorkingDir property to set the work-dir for the exec process, independent of the container's work-dir.
  • Get /version now returns a Platform.Name field, which can be used by products using Moby as a foundation to return information about the platform.
  • Get /version now returns a Components field, which can be used to return information about the components used. Information about the engine itself is now included as a "Component" version, and contains all information from the top-level Version, GitCommit, APIVersion, MinAPIVersion, GoVersion, Os, Arch, BuildTime, KernelVersion, and Experimental fields. Going forward, the information from the Components section is preferred over their top-level counterparts.

v1.34 API changes

Docker Engine API v1.34 documentation

  • POST /containers/(name)/wait?condition=removed now also also returns in case of container removal failure. A pointer to a structure named Error added to the response JSON in order to indicate a failure. If Error is null, container removal has succeeded, otherwise the test of an error message indicating why container removal has failed is available from Error.Message field.

v1.33 API changes

Docker Engine API v1.33 documentation

  • GET /events now supports filtering 4 more kinds of events: config, node, secret and service.

v1.32 API changes

Docker Engine API v1.32 documentation

  • POST /containers/create now accepts additional values for the HostConfig.IpcMode property. New values are private, shareable, and none.
  • DELETE /networks/{id or name} fixed issue where a name equal to another network's name was able to mask that id. If both a network with the given name exists, and a network with the given id, the network with the given id is now deleted. This change is not versioned, and affects all API versions if the daemon has this patch.

v1.31 API changes

Docker Engine API v1.31 documentation

  • DELETE /secrets/(name) now returns status code 404 instead of 500 when the secret does not exist.
  • POST /secrets/create now returns status code 409 instead of 500 when creating an already existing secret.
  • POST /secrets/create now accepts a Driver struct, allowing the Name and driver-specific Options to be passed to store a secrets in an external secrets store. The Driver property can be omitted if the default (internal) secrets store is used.
  • GET /secrets/(id) and GET /secrets now return a Driver struct, containing the Name and driver-specific Options of the external secrets store used to store the secret. The Driver property is omitted if no external store is used.
  • POST /secrets/(name)/update now returns status code 400 instead of 500 when updating a secret's content which is not the labels.
  • POST /nodes/(name)/update now returns status code 400 instead of 500 when demoting last node fails.
  • GET /networks/(id or name) now takes an optional query parameter scope that will filter the network based on the scope (local, swarm, or global).
  • POST /session is a new endpoint that can be used for running interactive long-running protocols between client and the daemon. This endpoint is experimental and only available if the daemon is started with experimental features enabled.
  • GET /images/(name)/get now includes an ImageMetadata field which contains image metadata that is local to the engine and not part of the image config.
  • POST /services/create now accepts a PluginSpec when TaskTemplate.Runtime is set to plugin
  • GET /events now supports config events create, update and remove that are emitted when users create, update or remove a config
  • GET /volumes/ and GET /volumes/{name} now return a CreatedAt field, containing the date/time the volume was created. This field is omitted if the creation date/time for the volume is unknown. For volumes with scope "global", this field represents the creation date/time of the local instance of the volume, which may differ from instances of the same volume on different nodes.
  • GET /system/df now returns a CreatedAt field for Volumes. Refer to the /volumes/ endpoint for a description of this field.

v1.30 API changes

Docker Engine API v1.30 documentation

  • GET /info now returns the list of supported logging drivers, including plugins.
  • GET /info and GET /swarm now returns the cluster-wide swarm CA info if the node is in a swarm: the cluster root CA certificate, and the cluster TLS leaf certificate issuer's subject and public key. It also displays the desired CA signing certificate, if any was provided as part of the spec.
  • POST /build/ now (when not silent) produces an Aux message in the JSON output stream with payload types.BuildResult for each image produced. The final such message will reference the image resulting from the build.
  • GET /nodes and GET /nodes/{id} now returns additional information about swarm TLS info if the node is part of a swarm: the trusted root CA, and the issuer's subject and public key.
  • GET /distribution/(name)/json is a new endpoint that returns a JSON output stream with payload types.DistributionInspect for an image name. It includes a descriptor with the digest, and supported platforms retrieved from directly contacting the registry.
  • POST /swarm/update now accepts 3 additional parameters as part of the swarm spec's CA configuration; the desired CA certificate for the swarm, the desired CA key for the swarm (if not using an external certificate), and an optional parameter to force swarm to generate and rotate to a new CA certificate/key pair.
  • POST /service/create and POST /services/(id or name)/update now take the field Platforms as part of the service Placement, allowing to specify platforms supported by the service.
  • POST /containers/(name)/wait now accepts a condition query parameter to indicate which state change condition to wait for. Also, response headers are now returned immediately to acknowledge that the server has registered a wait callback for the client.
  • POST /swarm/init now accepts a DataPathAddr property to set the IP-address or network interface to use for data traffic
  • POST /swarm/join now accepts a DataPathAddr property to set the IP-address or network interface to use for data traffic
  • GET /events now supports service, node and secret events which are emitted when users create, update and remove service, node and secret
  • GET /events now supports network remove event which is emitted when users remove a swarm scoped network
  • GET /events now supports a filter type scope in which supported value could be swarm and local
  • PUT /containers/(name)/archive now accepts a copyUIDGID parameter to allow copy UID/GID maps to dest file or dir.

v1.29 API changes

Docker Engine API v1.29 documentation

  • DELETE /networks/(name) now allows to remove the ingress network, the one used to provide the routing-mesh.
  • POST /networks/create now supports creating the ingress network, by specifying an Ingress boolean field. As of now this is supported only when using the overlay network driver.
  • GET /networks/(name) now returns an Ingress field showing whether the network is the ingress one.
  • GET /networks/ now supports a scope filter to filter networks based on the network mode (swarm, global, or local).
  • POST /containers/create, POST /service/create and POST /services/(id or name)/update now takes the field StartPeriod as a part of the HealthConfig allowing for specification of a period during which the container should not be considered unhealthy even if health checks do not pass.
  • GET /services/(id) now accepts an insertDefaults query-parameter to merge default values into the service inspect output.
  • POST /containers/prune, POST /images/prune, POST /volumes/prune, and POST /networks/prune now support a label filter to filter containers, images, volumes, or networks based on the label. The format of the label filter could be label=<key>/label=<key>=<value> to remove those with the specified labels, or label!=<key>/label!=<key>=<value> to remove those without the specified labels.
  • POST /services/create now accepts Privileges as part of ContainerSpec. Privileges currently include CredentialSpec and SELinuxContext.

v1.28 API changes

Docker Engine API v1.28 documentation

  • POST /containers/create now includes a Consistency field to specify the consistency level for each Mount, with possible values default, consistent, cached, or delegated.
  • GET /containers/create now takes a DeviceCgroupRules field in HostConfig allowing to set custom device cgroup rules for the created container.
  • Optional query parameter verbose for GET /networks/(id or name) will now list all services with all the tasks, including the non-local tasks on the given network.
  • GET /containers/(id or name)/attach/ws now returns WebSocket in binary frame format for API version >= v1.28, and returns WebSocket in text frame format for API version< v1.28, for the purpose of backward-compatibility.
  • GET /networks is optimised only to return list of all networks and network specific information. List of all containers attached to a specific network is removed from this API and is only available using the network specific GET /networks/{network-id}.
  • GET /containers/json now supports publish and expose filters to filter containers that expose or publish certain ports.
  • POST /services/create and POST /services/(id or name)/update now accept the ReadOnly parameter, which mounts the container's root filesystem as read only.
  • POST /build now accepts extrahosts parameter to specify a host to ip mapping to use during the build.
  • POST /services/create and POST /services/(id or name)/update now accept a rollback value for FailureAction.
  • POST /services/create and POST /services/(id or name)/update now accept an optional RollbackConfig object which specifies rollback options.
  • GET /services now supports a mode filter to filter services based on the service mode (either global or replicated).
  • POST /containers/(name)/update now supports updating NanoCPUs that represents CPU quota in units of 10-9 CPUs.

v1.27 API changes

Docker Engine API v1.27 documentation

  • GET /containers/(id or name)/stats now includes an online_cpus field in both precpu_stats and cpu_stats. If this field is nil then for compatibility with older daemons the length of the corresponding cpu_usage.percpu_usage array should be used.

v1.26 API changes

Docker Engine API v1.26 documentation

  • POST /plugins/(plugin name)/upgrade upgrade a plugin.

v1.25 API changes

Docker Engine API v1.25 documentation

  • The API version is now required in all API calls. Instead of just requesting, for example, the URL /containers/json, you must now request /v1.25/containers/json.
  • GET /version now returns MinAPIVersion.
  • POST /build accepts networkmode parameter to specify network used during build.
  • GET /images/(name)/json now returns OsVersion if populated
  • GET /info now returns Isolation.
  • POST /containers/create now takes AutoRemove in HostConfig, to enable auto-removal of the container on daemon side when the container's process exits.
  • GET /containers/json and GET /containers/(id or name)/json now return "removing" as a value for the State.Status field if the container is being removed. Previously, "exited" was returned as status.
  • GET /containers/json now accepts removing as a valid value for the status filter.
  • GET /containers/json now supports filtering containers by health status.
  • DELETE /volumes/(name) now accepts a force query parameter to force removal of volumes that were already removed out of band by the volume driver plugin.
  • POST /containers/create/ and POST /containers/(name)/update now validates restart policies.
  • POST /containers/create now validates IPAMConfig in NetworkingConfig, and returns error for invalid IPv4 and IPv6 addresses (--ip and --ip6 in docker create/run).
  • POST /containers/create now takes a Mounts field in HostConfig which replaces Binds, Volumes, and Tmpfs. note: Binds, Volumes, and Tmpfs are still available and can be combined with Mounts.
  • POST /build now performs a preliminary validation of the Dockerfile before starting the build, and returns an error if the syntax is incorrect. Note that this change is unversioned and applied to all API versions.
  • POST /build accepts cachefrom parameter to specify images used for build cache.
  • GET /networks/ endpoint now correctly returns a list of all networks, instead of the default network if a trailing slash is provided, but no name or id.
  • DELETE /containers/(name) endpoint now returns an error of removal of container name is already in progress with status code of 400, when container name is in a state of removal in progress.
  • GET /containers/json now supports a is-task filter to filter containers that are tasks (part of a service in swarm mode).
  • POST /containers/create now takes StopTimeout field.
  • POST /services/create and POST /services/(id or name)/update now accept Monitor and MaxFailureRatio parameters, which control the response to failures during service updates.
  • POST /services/(id or name)/update now accepts a ForceUpdate parameter inside the TaskTemplate, which causes the service to be updated even if there are no changes which would ordinarily trigger an update.
  • POST /services/create and POST /services/(id or name)/update now return a Warnings array.
  • GET /networks/(name) now returns field Created in response to show network created time.
  • POST /containers/(id or name)/exec now accepts an Env field, which holds a list of environment variables to be set in the context of the command execution.
  • GET /volumes, GET /volumes/(name), and POST /volumes/create now return the Options field which holds the driver specific options to use for when creating the volume.
  • GET /exec/(id)/json now returns Pid, which is the system pid for the exec'd process.
  • POST /containers/prune prunes stopped containers.
  • POST /images/prune prunes unused images.
  • POST /volumes/prune prunes unused volumes.
  • POST /networks/prune prunes unused networks.
  • Every API response now includes a Docker-Experimental header specifying if experimental features are enabled (value can be true or false).
  • Every API response now includes a API-Version header specifying the default API version of the server.
  • The hostConfig option now accepts the fields CpuRealtimePeriod and CpuRtRuntime to allocate cpu runtime to rt tasks when CONFIG_RT_GROUP_SCHED is enabled in the kernel.
  • The SecurityOptions field within the GET /info response now includes userns if user namespaces are enabled in the daemon.
  • GET /nodes and GET /node/(id or name) now return Addr as part of a node's Status, which is the address that that node connects to the manager from.
  • The HostConfig field now includes NanoCPUs that represents CPU quota in units of 10-9 CPUs.
  • GET /info now returns more structured information about security options.
  • The HostConfig field now includes CpuCount that represents the number of CPUs available for execution by the container. Windows daemon only.
  • POST /services/create and POST /services/(id or name)/update now accept the TTY parameter, which allocate a pseudo-TTY in container.
  • POST /services/create and POST /services/(id or name)/update now accept the DNSConfig parameter, which specifies DNS related configurations in resolver configuration file (resolv.conf) through Nameservers, Search, and Options.
  • POST /services/create and POST /services/(id or name)/update now support node.platform.arch and node.platform.os constraints in the services TaskSpec.Placement.Constraints field.
  • GET /networks/(id or name) now includes IP and name of all peers nodes for swarm mode overlay networks.
  • GET /plugins list plugins.
  • POST /plugins/pull?name=<plugin name> pulls a plugin.
  • GET /plugins/(plugin name) inspect a plugin.
  • POST /plugins/(plugin name)/set configure a plugin.
  • POST /plugins/(plugin name)/enable enable a plugin.
  • POST /plugins/(plugin name)/disable disable a plugin.
  • POST /plugins/(plugin name)/push push a plugin.
  • POST /plugins/create?name=(plugin name) create a plugin.
  • DELETE /plugins/(plugin name) delete a plugin.
  • POST /node/(id or name)/update now accepts both id or name to identify the node to update.
  • GET /images/json now support a reference filter.
  • GET /secrets returns information on the secrets.
  • POST /secrets/create creates a secret.
  • DELETE /secrets/{id} removes the secret id.
  • GET /secrets/{id} returns information on the secret id.
  • POST /secrets/{id}/update updates the secret id.
  • POST /services/(id or name)/update now accepts service name or prefix of service id as a parameter.
  • POST /containers/create added 2 built-in log-opts that work on all logging drivers, mode (blocking|non-blocking), and max-buffer-size (e.g. 2m) which enables a non-blocking log buffer.
  • POST /containers/create now takes HostConfig.Init field to run an init inside the container that forwards signals and reaps processes.

v1.24 API changes

Docker Engine API v1.24 documentation

  • POST /containers/create now takes StorageOpt field.
  • GET /info now returns SecurityOptions field, showing if apparmor, seccomp, or selinux is supported.
  • GET /info no longer returns the ExecutionDriver property. This property was no longer used after integration with ContainerD in Docker 1.11.
  • GET /networks now supports filtering by label and driver.
  • GET /containers/json now supports filtering containers by network name or id.
  • POST /containers/create now takes IOMaximumBandwidth and IOMaximumIOps fields. Windows daemon only.
  • POST /containers/create now returns an HTTP 400 "bad parameter" message if no command is specified (instead of an HTTP 500 "server error")
  • GET /images/search now takes a filters query parameter.
  • GET /events now supports a reload event that is emitted when the daemon configuration is reloaded.
  • GET /events now supports filtering by daemon name or ID.
  • GET /events now supports a detach event that is emitted on detaching from container process.
  • GET /events now supports an exec_detach event that is emitted on detaching from exec process.
  • GET /images/json now supports filters since and before.
  • POST /containers/(id or name)/start no longer accepts a HostConfig.
  • POST /images/(name)/tag no longer has a force query parameter.
  • GET /images/search now supports maximum returned search results limit.
  • POST /containers/{name:.*}/copy is now removed and errors out starting from this API version.
  • API errors are now returned as JSON instead of plain text.
  • POST /containers/create and POST /containers/(id)/start allow you to configure kernel parameters (sysctls) for use in the container.
  • POST /containers/<container ID>/exec and POST /exec/<exec ID>/start no longer expects a "Container" field to be present. This property was not used and is no longer sent by the docker client.
  • POST /containers/create/ now validates the hostname (should be a valid RFC 1123 hostname).
  • POST /containers/create/ HostConfig.PidMode field now accepts container:<name|id>, to have the container join the PID namespace of an existing container.

v1.23 API changes

Docker Engine API v1.23 documentation

  • GET /containers/json returns the state of the container, one of created, restarting, running, paused, exited or dead.
  • GET /containers/json returns the mount points for the container.
  • GET /networks/(name) now returns an Internal field showing whether the network is internal or not.
  • GET /networks/(name) now returns an EnableIPv6 field showing whether the network has ipv6 enabled or not.
  • POST /containers/(name)/update now supports updating container's restart policy.
  • POST /networks/create now supports enabling ipv6 on the network by setting the EnableIPv6 field (doing this with a label will no longer work).
  • GET /info now returns CgroupDriver field showing what cgroup driver the daemon is using; cgroupfs or systemd.
  • GET /info now returns KernelMemory field, showing if "kernel memory limit" is supported.
  • POST /containers/create now takes PidsLimit field, if the kernel is >= 4.3 and the pids cgroup is supported.
  • GET /containers/(id or name)/stats now returns pids_stats, if the kernel is >= 4.3 and the pids cgroup is supported.
  • POST /containers/create now allows you to override usernamespaces remapping and use privileged options for the container.
  • POST /containers/create now allows specifying nocopy for named volumes, which disables automatic copying from the container path to the volume.
  • POST /auth now returns an IdentityToken when supported by a registry.
  • POST /containers/create with both Hostname and Domainname fields specified will result in the container's hostname being set to Hostname, rather than Hostname.Domainname.
  • GET /volumes now supports more filters, new added filters are name and driver.
  • GET /containers/(id or name)/logs now accepts a details query parameter to stream the extra attributes that were provided to the containers LogOpts, such as environment variables and labels, with the logs.
  • POST /images/load now returns progress information as a JSON stream, and has a quiet query parameter to suppress progress details.

v1.22 API changes

Docker Engine API v1.22 documentation

  • POST /container/(name)/update updates the resources of a container.
  • GET /containers/json supports filter isolation on Windows.
  • GET /containers/json now returns the list of networks of containers.
  • GET /info Now returns Architecture and OSType fields, providing information about the host architecture and operating system type that the daemon runs on.
  • GET /networks/(name) now returns a Name field for each container attached to the network.
  • GET /version now returns the BuildTime field in RFC3339Nano format to make it consistent with other date/time values returned by the API.
  • AuthConfig now supports a registrytoken for token based authentication
  • POST /containers/create now has a 4M minimum value limit for HostConfig.KernelMemory
  • Pushes initiated with POST /images/(name)/push and pulls initiated with POST /images/create will be cancelled if the HTTP connection making the API request is closed before the push or pull completes.
  • POST /containers/create now allows you to set a read/write rate limit for a device (in bytes per second or IO per second).
  • GET /networks now supports filtering by name, id and type.
  • POST /containers/create now allows you to set the static IPv4 and/or IPv6 address for the container.
  • POST /networks/(id)/connect now allows you to set the static IPv4 and/or IPv6 address for the container.
  • GET /info now includes the number of containers running, stopped, and paused.
  • POST /networks/create now supports restricting external access to the network by setting the Internal field.
  • POST /networks/(id)/disconnect now includes a Force option to forcefully disconnect a container from network
  • GET /containers/(id)/json now returns the NetworkID of containers.
  • POST /networks/create Now supports an options field in the IPAM config that provides options for custom IPAM plugins.
  • GET /networks/{network-id} Now returns IPAM config options for custom IPAM plugins if any are available.
  • GET /networks/<network-id> now returns subnets info for user-defined networks.
  • GET /info can now return a SystemStatus field useful for returning additional information about applications that are built on top of engine.

v1.21 API changes

Docker Engine API v1.21 documentation

  • GET /volumes lists volumes from all volume drivers.
  • POST /volumes/create to create a volume.
  • GET /volumes/(name) get low-level information about a volume.
  • DELETE /volumes/(name) remove a volume with the specified name.
  • VolumeDriver was moved from config to HostConfig to make the configuration portable.
  • GET /images/(name)/json now returns information about an image's RepoTags and RepoDigests.
  • The config option now accepts the field StopSignal, which specifies the signal to use to kill a container.
  • GET /containers/(id)/stats will return networking information respectively for each interface.
  • The HostConfig option now includes the DnsOptions field to configure the container's DNS options.
  • POST /build now optionally takes a serialized map of build-time variables.
  • GET /events now includes a timenano field, in addition to the existing time field.
  • GET /events now supports filtering by image and container labels.
  • GET /info now lists engine version information and return the information of CPUShares and Cpuset.
  • GET /containers/json will return ImageID of the image used by container.
  • POST /exec/(name)/start will now return an HTTP 409 when the container is either stopped or paused.
  • POST /containers/create now takes KernelMemory in HostConfig to specify kernel memory limit.
  • GET /containers/(name)/json now accepts a size parameter. Setting this parameter to '1' returns container size information in the SizeRw and SizeRootFs fields.
  • GET /containers/(name)/json now returns a NetworkSettings.Networks field, detailing network settings per network. This field deprecates the NetworkSettings.Gateway, NetworkSettings.IPAddress, NetworkSettings.IPPrefixLen, and NetworkSettings.MacAddress fields, which are still returned for backward-compatibility, but will be removed in a future version.
  • GET /exec/(id)/json now returns a NetworkSettings.Networks field, detailing networksettings per network. This field deprecates the NetworkSettings.Gateway, NetworkSettings.IPAddress, NetworkSettings.IPPrefixLen, and NetworkSettings.MacAddress fields, which are still returned for backward-compatibility, but will be removed in a future version.
  • The HostConfig option now includes the OomScoreAdj field for adjusting the badness heuristic. This heuristic selects which processes the OOM killer kills under out-of-memory conditions.

v1.20 API changes

Docker Engine API v1.20 documentation

  • GET /containers/(id)/archive get an archive of filesystem content from a container.
  • PUT /containers/(id)/archive upload an archive of content to be extracted to an existing directory inside a container's filesystem.
  • POST /containers/(id)/copy is deprecated in favor of the above archive endpoint which can be used to download files and directories from a container.
  • The hostConfig option now accepts the field GroupAdd, which specifies a list of additional groups that the container process will run as.

v1.19 API changes

Docker Engine API v1.19 documentation

  • When the daemon detects a version mismatch with the client, usually when the client is newer than the daemon, an HTTP 400 is now returned instead of a 404.
  • GET /containers/(id)/stats now accepts stream bool to get only one set of stats and disconnect.
  • GET /containers/(id)/logs now accepts a since timestamp parameter.
  • GET /info The fields Debug, IPv4Forwarding, MemoryLimit, and SwapLimit are now returned as boolean instead of as an int. In addition, the end point now returns the new boolean fields CpuCfsPeriod, CpuCfsQuota, and OomKillDisable.
  • The hostConfig option now accepts the fields CpuPeriod and CpuQuota
  • POST /build accepts cpuperiod and cpuquota options

v1.18 API changes

Docker Engine API v1.18 documentation

  • GET /version now returns Os, Arch and KernelVersion.
  • POST /containers/create and POST /containers/(id)/startallow you to set ulimit settings for use in the container.
  • GET /info now returns SystemTime, HttpProxy,HttpsProxy and NoProxy.
  • GET /images/json added a RepoDigests field to include image digest information.
  • POST /build can now set resource constraints for all containers created for the build.
  • CgroupParent can be passed in the host config to setup container cgroups under a specific cgroup.
  • POST /build closing the HTTP request cancels the build
  • POST /containers/(id)/exec includes Warnings field to response.