Uses RFC 3339, where generated output will always be Z-normalized and uses 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z", "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30".
Identity
The unique identifier of the update.
JSON representation
{"updateId": string,"revision": integer}
Fields
updateId
string
The revision independent identifier of the update.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-07-31 UTC."],[[["\u003cp\u003eWindows Update metadata provides information about updates for the Windows operating system, sourced from the Windows Update API.\u003c/p\u003e\n"],["\u003cp\u003eEach update is uniquely identified by an \u003ccode\u003eidentity\u003c/code\u003e object, which includes an \u003ccode\u003eupdateId\u003c/code\u003e and \u003ccode\u003erevision\u003c/code\u003e number.\u003c/p\u003e\n"],["\u003cp\u003eUpdates are categorized, with each \u003ccode\u003ecategory\u003c/code\u003e having a \u003ccode\u003ecategoryId\u003c/code\u003e and a localized \u003ccode\u003ename\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eAdditional details include the update's localized \u003ccode\u003etitle\u003c/code\u003e, \u003ccode\u003edescription\u003c/code\u003e, associated \u003ccode\u003ekbArticleIds\u003c/code\u003e, a \u003ccode\u003esupportUrl\u003c/code\u003e, and the \u003ccode\u003elastPublishedTimestamp\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe list of categories that the update belongs to is represented by the \u003ccode\u003ecategories\u003c/code\u003e field.\u003c/p\u003e\n"]]],[],null,["# WindowsUpdate\n\n- [JSON representation](#SCHEMA_REPRESENTATION)\n- [Identity](#Identity)\n - [JSON representation](#Identity.SCHEMA_REPRESENTATION)\n- [Category](#Category)\n - [JSON representation](#Category.SCHEMA_REPRESENTATION)\n\nWindows Update represents the metadata about the update for the Windows operating system. The fields in this message come from the Windows Update API documented at \u003chttps://docs.microsoft.com/en-us/windows/win32/api/wuapi/nn-wuapi-iupdate\u003e.\n\nIdentity\n--------\n\nThe unique identifier of the update.\n\nCategory\n--------\n\nThe category to which the update belongs."]]