Windows 11 Update History

Endpoint

GET https://api.datafornerds.io/v2/microsoft/windows-11-update-history.json

A filtered subset of the full Windows Update History containing only Windows 11 records (MajorVersion = 11, OSType = "Client"). Includes all release types: Standard, Preview, Out-of-band, Hotpatch, and Hotpatch-OOB.

Schema

Same 10-field schema as the full dataset. All records have OSType = "Client" and MajorVersion = 11.

Field	Type	Description	Example
`OSType`	string	Always "Client" in this dataset	`Client`
`MajorVersion`	integer	Always 11 in this dataset	`11`
`WindowsVersion`	string	Feature update version	`24H2`
`KBNumber`	string	Knowledge Base article number	`KB5058411`
`OSBuild`	string	Full OS build number	`26100.4061`
`FullVersion`	string	NT version string (always 10.0.x)	`10.0.26100.4061`
`ReleaseDate`	date	Release date (ISO 8601)	`2026-05-13`
`ReleaseType`	string	Standard, Preview, Out-of-band, Hotpatch, or Hotpatch-OOB	`Standard`
`IsExpired`	boolean	Whether Microsoft has marked this update as expired	`false`
`ArticleUrl`	string	URL to the KB article	`https://support.microsoft.com/kb/5058411`

Notes

Windows 11 uses NT version 10.0 internally, so FullVersion values begin with 10.0., not 11.0..
Microsoft marks EXPIRED inconsistently across version sections on their update history pages. DataForNerds normalizes this at the KB level: if any version of a KB is marked expired, all versions of that KB are reported as expired.

Code examples

$response = Invoke-RestMethod 'https://api.datafornerds.io/v2/microsoft/windows-11-update-history.json'
$response.data | Where-Object { $_.ReleaseType -eq 'Hotpatch' } |
    Sort-Object ReleaseDate -Descending | Format-Table ReleaseDate, KBNumber, OSBuild

import requests

data = requests.get("https://api.datafornerds.io/v2/microsoft/windows-11-update-history.json").json()["data"]
by_type = {}
for r in data:
    by_type.setdefault(r["ReleaseType"], []).append(r)
for rt, records in by_type.items():
    print(f"{rt}: {len(records)} updates")

curl -s https://api.datafornerds.io/v2/microsoft/windows-11-update-history.json \
  | jq '[.data[] | select(.WindowsVersion == "24H2" and .ReleaseType == "Standard")] | length'

JSON Schema

/v2/microsoft/schemas/windows-11-update-history.schema.json