Page History

{
  "apiKey": 18,
  "type": "request",
  "listeners": ["zkBroker", "broker", "controller"],
  "name": "ApiVersionsRequest",
  // Versions 0 through 2 of ApiVersionsRequest are the same.
  //
  // Version 3 is the first flexible version and adds ClientSoftwareName and ClientSoftwareVersion.
  //
  // Version 4 introduces optional target metadata version field to see the supported versions for a given metadata version
  "validVersions": "0-4",
  "flexibleVersions": "3+",
  "fields": [
    { "name": "ClientSoftwareName", "type": "string", "versions": "3+",
      "ignorable": true, "about": "The name of the client." },
    { "name": "ClientSoftwareVersion", "type": "string", "versions": "3+",
      "ignorable": true, "about": "The version of the client." }
	{ "name": "TargetMetadataVersion", "type": int16, "versions: "4+",
      "ignorable":true, "about": "The target metadata version used to see the corresponding feature versions"
    }
  ]
}