The IDBVersionChangeRequest.setVersion method updates the version of the database, returning immediately and running a versionchange transaction on the connected database in a separate thread.

For older WebKit browsers, call this method before creating or deleting an object store.

Warning: The latest draft of the specification has dropped this method. Some not up-to-date browsers still implement this method. The new way is to define the version in the method and create and delete object stores in the onupgradeneeded event handler associated with the returned request.


IDBVersionChangeRequest setVersion ([TreatNullAs=EmptyString] in DOMString version);




The version to store in the database.


The request to change the version of a database.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support No No No No No No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support No No No No No No No

See also

Document Tags and Contributors

Contributors to this page: fscholz, chrisdavidmills
Last updated by: fscholz,