{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "base_path"
  ],
  "properties": {
    "base_path": {
      "$ref": "#/definitions/absolute_path"
    },
    "last_edited_at": {
      "type": "string",
      "format": "date-time",
      "description": "Last time when the content received a major or minor update."
    },
    "previous_version": {
      "type": "string"
    },
    "update_type": {
      "enum": [
        "major",
        "minor",
        "republish"
      ]
    },
    "change_note": {
      "type": [
        "null",
        "string"
      ]
    }
  }
}

{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "base_path"
  ],
  "properties": {
    "base_path": {
      "$ref": "#/definitions/absolute_path"
    },
    "last_edited_at": {
      "type": "string",
      "format": "date-time",
      "description": "Last time when the content received a major or minor update."
    },
    "previous_version": {
      "type": "string"
    },
    "update_type": {
      "enum": [
        "major",
        "minor",
        "republish"
      ]
    },
    "links": {
      "type": "object",
      "patternProperties": {
        "^[a-z_]+$": {
          "$ref": "#/definitions/guid_list"
        }
      },
      "description": "Links associated with a particular edition of a document.",
      "not": {
        "anyOf": [
          {
            "required": [
              "available_translations"
            ]
          },
          {
            "required": [
              "children"
            ]
          },
          {
            "required": [
              "policies"
            ]
          },
          {
            "required": [
              "document_collections"
            ]
          },
          {
            "required": [
              "child_taxons"
            ]
          }
        ]
      }
    },
    "change_note": {
      "type": [
        "null",
        "string"
      ]
    }
  }
}

Add links to v2 metadata
Add links to v2 metadata
