Openapi Upgrade History Structure

{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/amazon-opensearch/refs/heads/main/json-structure/openapi-upgrade-history-structure.json",
  "name": "UpgradeHistory",
  "description": "History of the last 10 Upgrades and Upgrade Eligibility Checks.",
  "type": "object",
  "properties": {
    "UpgradeName": {
      "allOf": [
        {
          "$ref": "#/components/schemas/UpgradeName"
        },
        {
          "description": "A string that describes the update briefly"
        }
      ]
    },
    "StartTimestamp": {
      "allOf": [
        {
          "$ref": "#/components/schemas/StartTimestamp"
        },
        {
          "description": "UTC Timestamp at which the Upgrade API call was made in \"yyyy-MM-ddTHH:mm:ssZ\" format."
        }
      ]
    },
    "UpgradeStatus": {
      "allOf": [
        {
          "$ref": "#/components/schemas/UpgradeStatus"
        },
        {
          "description": " The overall status of the update. The status can take one of the following values: <ul> <li>In Progress</li> <li>Succeeded</li> <li>Succeeded with Issues</li> <li>Failed</li> </ul> "
        }
      ]
    },
    "StepsList": {
      "allOf": [
        {
          "$ref": "#/components/schemas/UpgradeStepsList"
        },
        {
          "description": " A list of <code> <a>UpgradeStepItem</a> </code> s representing information about each step performed as pard of a specific Upgrade or Upgrade Eligibility Check. "
        }
      ]
    }
  }
}