NAME
    gcloud composer environments list-upgrades - list the Cloud Composer image
        version upgrades for a specific environment

SYNOPSIS
    gcloud composer environments list-upgrades
        (ENVIRONMENT : --location=LOCATION) [--filter=EXPRESSION]
        [--limit=LIMIT] [--page-size=PAGE_SIZE] [--sort-by=[FIELD,...]]
        [GCLOUD_WIDE_FLAG ...]

DESCRIPTION
    gcloud composer environments list-upgrades prints a table listing the
    suggested image-version upgrades with the following columns:
      ▪ Image Version ID
      ▪ Composer 'default' flag
      ▪ List of supported python versions

POSITIONAL ARGUMENTS
     Environment resource - The environment to list upgrades. The arguments in
     this group can be used to specify the attributes of this resource. (NOTE)
     Some attributes are not given arguments in this group but can be set in
     other ways.

     To set the project attribute:
      ◆ provide the argument environment on the command line with a fully
        specified name;
      ◆ provide the argument --project on the command line;
      ◆ set the property core/project.

     This must be specified.

       ENVIRONMENT
          ID of the environment or fully qualified identifier for the
          environment.

          To set the environment attribute:
          ▸ provide the argument environment on the command line.

          This positional argument must be specified if any of the other
          arguments in this group are specified.

       --location=LOCATION
          Region where Composer environment runs or in which to create the
          environment.

          To set the location attribute:
          ▸ provide the argument environment on the command line with a fully
            specified name;
          ▸ provide the argument --location on the command line;
          ▸ set the property composer/location.

LIST COMMAND FLAGS
     --filter=EXPRESSION
        Apply a Boolean filter EXPRESSION to each resource item to be listed.
        If the expression evaluates True, then that item is listed. For more
        details and examples of filter expressions, run $ gcloud topic filters.
        This flag interacts with other flags that are applied in this order:
        --flatten, --sort-by, --filter, --limit.

     --limit=LIMIT
        Maximum number of resources to list. The default is unlimited. This
        flag interacts with other flags that are applied in this order:
        --flatten, --sort-by, --filter, --limit.

     --page-size=PAGE_SIZE
        Some services group resource list output into pages. This flag
        specifies the maximum number of resources per page. The default is
        determined by the service if it supports paging, otherwise it is
        unlimited (no paging). Paging may be applied before or after --filter
        and --limit depending on the service.

     --sort-by=[FIELD,...]
        Comma-separated list of resource field key names to sort by. The
        default order is ascending. Prefix a field with ``~'' for descending
        order on that field. This flag interacts with other flags that are
        applied in this order: --flatten, --sort-by, --filter, --limit.

GCLOUD WIDE FLAGS
    These flags are available to all commands: --access-token-file, --account,
    --billing-project, --configuration, --flags-file, --flatten, --format,
    --help, --impersonate-service-account, --log-http, --project, --quiet,
    --trace-token, --user-output-enabled, --verbosity.

    Run $ gcloud help for details.

NOTES
    These variants are also available:

        $ gcloud alpha composer environments list-upgrades

        $ gcloud beta composer environments list-upgrades

