Word JavaScript API requirement sets

Requirement sets are named groups of API members. Office Add-ins use requirement sets specified in the manifest or use a runtime check to determine whether an Office host supports APIs that an add-in needs. For more information, see Office versions and requirement sets.

Requirement set availability

Word add-ins run across multiple versions of Office, including Office 2016 or later on Windows, and Office on the web, iPad, and Mac. The following table lists the Word requirement sets, the Office host applications that support that requirement set, and the build or version numbers for those applications.

Note

To use APIs in any of the numbered requirement sets, you should reference the production library on the CDN: https://appsforoffice.microsoft.com/lib/1/hosted/office.js.

For information about using preview APIs, see the Excel JavaScript preview APIs article.

Requirement set Office on Windows*
(connected to Office 365 subscription)
Office on iPad
(connected to Office 365 subscription)
Office on Mac
(connected to Office 365 subscription)
Office on the web
Preview Please use the latest Office version to try preview APIs (you may need to join the Office Insider program)
WordApi 1.3 Version 1612 (Build 7668.1000) or later March 2017, 2.22 or later March 2017, 15.32 or later March 2017
WordApi 1.2 December 2015 update, Version 1601 (Build 6568.1000) or later January 2016, 1.18 or later January 2016, 15.19 or later September 2016
WordApi 1.1 Version 1509 (Build 4266.1001) or later January 2016, 1.18 or later January 2016, 15.19 or later September 2016

Note

The build number for Office 2016 installed via MSI is 16.0.4266.1001. This version only contains the WordApi 1.1 requirement set.

Office versions and build numbers

For more information about Office versions and build numbers, see:

See also