{
  "api": {
    "IDBVersionChangeEvent": {
      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBVersionChangeEvent",
        "spec_url": "https://w3c.github.io/IndexedDB/#events",
        "tags": [
          "web-features:indexeddb"
        ],
        "support": {
          "chrome": [
            {
              "version_added": "24"
            },
            {
              "prefix": "webkit",
              "version_added": "12"
            }
          ],
          "chrome_android": "mirror",
          "edge": {
            "version_added": "12"
          },
          "firefox": [
            {
              "version_added": "16"
            },
            {
              "prefix": "moz",
              "version_added": "10",
              "version_removed": "16"
            }
          ],
          "firefox_android": {
            "version_added": "22"
          },
          "ie": {
            "version_added": "10"
          },
          "oculus": "mirror",
          "opera": "mirror",
          "opera_android": "mirror",
          "safari": {
            "version_added": "8"
          },
          "safari_ios": "mirror",
          "samsunginternet_android": "mirror",
          "webview_android": "mirror",
          "webview_ios": "mirror"
        },
        "status": {
          "experimental": false,
          "standard_track": true,
          "deprecated": false
        }
      },
      "IDBVersionChangeEvent": {
        "__compat": {
          "description": "`IDBVersionChangeEvent()` constructor",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBVersionChangeEvent/IDBVersionChangeEvent",
          "spec_url": "https://w3c.github.io/IndexedDB/#dom-idbversionchangeevent-idbversionchangeevent",
          "tags": [
            "web-features:indexeddb"
          ],
          "support": {
            "chrome": {
              "version_added": "41"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "25"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "10"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "worker_support": {
        "__compat": {
          "description": "Available in workers",
          "tags": [
            "web-features:indexeddb"
          ],
          "support": {
            "chrome": {
              "version_added": "23"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "37"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "10"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "newVersion": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBVersionChangeEvent/newVersion",
          "spec_url": "https://w3c.github.io/IndexedDB/#dom-idbversionchangeevent-newversion",
          "tags": [
            "web-features:indexeddb"
          ],
          "support": {
            "chrome": {
              "version_added": "23"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "10"
            },
            "firefox_android": {
              "version_added": "22"
            },
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "8"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "oldVersion": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBVersionChangeEvent/oldVersion",
          "spec_url": "https://w3c.github.io/IndexedDB/#dom-idbversionchangeevent-oldversion",
          "tags": [
            "web-features:indexeddb"
          ],
          "support": {
            "chrome": {
              "version_added": "23"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "10"
            },
            "firefox_android": {
              "version_added": "22"
            },
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "8"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}