`docker build` fails with error `unknown flag: --disable-content-trust` in Docker v24.0.5

Description

Using the flag --disable-content-trust for docker build results in error:

unknown flag: --disable-content-trust
See 'docker buildx build --help'.

Using docker v24.0.5

The flag --disable-content-trust appears in docs at https://docs.docker.com/engine/reference/commandline/build/, however the option is not visible in the output of docker build --help (output attached in additional info). The release notes do not mention that this flag was deprecated (confirmed that the flag existed in Docker version 24.0.2, build cb74dfc)

Reproduce

docker build --disable-content-trust=false

(it's not a valid call to docker build but presents a minimal way to reproduce the error)

Expected behavior

Should not get error:

unknown flag: --disable-content-trust

docker version

Client: Docker Engine - Community
 Version:           24.0.5
 API version:       1.43
 Go version:        go1.20.6
 Git commit:        ced0996
 Built:             Fri Jul 21 20:35:23 2023
 OS/Arch:           linux/amd64
 Context:           default

Server: Docker Engine - Community
 Engine:
  Version:          24.0.5
  API version:      1.43 (minimum version 1.12)
  Go version:       go1.20.6
  Git commit:       a61e2b4
  Built:            Fri Jul 21 20:35:23 2023
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.6.22
  GitCommit:        8165feabfdfe38c65b599c4993d227328c231fca
 runc:
  Version:          1.1.8
  GitCommit:        v1.1.8-0-g82f18fe
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

docker info

Client: Docker Engine - Community
 Version:    24.0.5
 Context:    default
 Debug Mode: false
 Plugins:
  buildx: Docker Buildx (Docker Inc.)
    Version:  v0.11.2
    Path:     /usr/libexec/docker/cli-plugins/docker-buildx
  compose: Docker Compose (Docker Inc.)
    Version:  v2.20.2
    Path:     /usr/libexec/docker/cli-plugins/docker-compose

Server:
 Containers: 19
  Running: 2
  Paused: 0
  Stopped: 17
 Images: 77
 Server Version: 24.0.5
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Using metacopy: false
  Native Overlay Diff: true
  userxattr: false
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 1
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 8165feabfdfe38c65b599c4993d227328c231fca
 runc version: v1.1.8-0-g82f18fe
 init version: de40ad0
 Security Options:
  apparmor
  seccomp
   Profile: builtin
 Kernel Version: 5.15.0-56-generic
 Operating System: Ubuntu 20.04.6 LTS
 OSType: linux
 Architecture: x86_64
 CPUs: 16
 Total Memory: 31.2GiB
 Name: <redacted>
 ID: <redacted>
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 HTTP Proxy: http://xxxxx:xxxxx@<redacted>/
 HTTPS Proxy: http://xxxxx:xxxxx@<redacted>/
 No Proxy: localhost,127.0.0.0/8,10.0.0.0/8,<redacted>
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false
 Default Address Pools:
   Base: <redacted>/17, Size: 24

Additional Info

docker build --help

Usage:  docker buildx build [OPTIONS] PATH | URL | -

Start a build

Aliases:
  docker buildx build, docker buildx b

Options:
      --add-host strings              Add a custom host-to-IP mapping (format: "host:ip")
      --allow strings                 Allow extra privileged entitlement (e.g., "network.host", "security.insecure")
      --attest stringArray            Attestation parameters (format: "type=sbom,generator=image")
      --build-arg stringArray         Set build-time variables
      --build-context stringArray     Additional build contexts (e.g., name=path)
      --builder string                Override the configured builder instance (default "default")
      --cache-from stringArray        External cache sources (e.g., "user/app:cache", "type=local,src=path/to/dir")
      --cache-to stringArray          Cache export destinations (e.g., "user/app:cache", "type=local,dest=path/to/dir")
      --cgroup-parent string          Optional parent cgroup for the container
  -f, --file string                   Name of the Dockerfile (default: "PATH/Dockerfile")
      --iidfile string                Write the image ID to the file
      --label stringArray             Set metadata for an image
      --load                          Shorthand for "--output=type=docker"
      --metadata-file string          Write build result metadata to the file
      --network string                Set the networking mode for the "RUN" instructions during build (default "default")
      --no-cache                      Do not use cache when building the image
      --no-cache-filter stringArray   Do not cache specified stages
  -o, --output stringArray            Output destination (format: "type=local,dest=path")
      --platform stringArray          Set target platform for build
      --progress string               Set type of progress output ("auto", "plain", "tty"). Use plain to show container output (default "auto")
      --provenance string             Shorthand for "--attest=type=provenance"
      --pull                          Always attempt to pull all referenced images
      --push                          Shorthand for "--output=type=registry"
  -q, --quiet                         Suppress the build output and print image ID on success
      --sbom string                   Shorthand for "--attest=type=sbom"
      --secret stringArray            Secret to expose to the build (format: "id=mysecret[,src=/local/secret]")
      --shm-size bytes                Size of "/dev/shm"
      --ssh stringArray               SSH agent socket or keys to expose to the build (format: "default|<id>[=<socket>|<key>[,<key>]]")
  -t, --tag stringArray               Name and optionally a tag (format: "name:tag")
      --target string                 Set the target build stage to build
      --ulimit ulimit                 Ulimit options (default [])

docker / cli