{"json_modified": "2016-10-14T06:04:55.891749", "uuid": "331bca99-d6f2-455e-b880-6ebdf98ba092", "title": "IDBVersionChangeEvent", "url": "/en-US/docs/Web/API/IDBVersionChangeEvent", "tags": ["API", "DOM", "storage", "IndexedDB", "Reference", "Database", "Interface", "JavaScript", "Storage", "IDBVersionChangeEvent"], "translations": [], "modified": "2016-10-14T06:04:55", "label": "IDBVersionChangeEvent", "localization_tags": [], "locale": "en-US", "id": 5161, "last_edit": "2016-10-14T06:04:46", "summary": "The <strong><code>IDBVersionChangeEvent</code></strong> interface of the <a href=\"/en-US/docs/Web/API/IndexedDB_API\">IndexedDB API</a> indicates that the version of the database has changed, as the result of an <a href=\"/en-US/docs/Web/API/IDBOpenDBRequest/onupgradeneeded\" title=\"In the following example you can see the onupgradeneeded handler being used to update the database structure if a database with a higher version number is loaded. For a full working example, see our To-do Notifications app (view example live.)\"><code>IDBOpenDBRequest.onupgradeneeded</code></a> event handler function.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Properties", "title": "Properties"}, {"id": "Deprecated_properties", "title": "Deprecated properties"}, {"id": "Methods", "title": "Methods"}, {"id": "Example", "title": "Example"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "See_also", "title": "See also"}], "slug": "Web/API/IDBVersionChangeEvent", "review_tags": []}