Windows Release History

Endpoint

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

A reference table mapping Windows 10 and Windows 11 feature update versions (e.g., 24H2, 22H2) to their base OS build numbers. One entry per documented version, not per-update records.

Schema

Field	Type	Description	Example
`OSType`	string	Always "Client"	`Client`
`MajorVersion`	integer	10 or 11	`11`
`WindowsVersion`	string	Feature update version identifier	`24H2`
`OSBuild`	string	Base OS build number (no patch suffix)	`26100`
`FullVersion`	string	NT version string	`10.0.26100`

Example response

{
  "metadata": {
    "provider": "DataForNerds",
    "apiVersion": "v2",
    "dataset": "windows-release-history",
    "recordCount": 18,
    "sourceUrls": [
      "https://learn.microsoft.com/en-us/windows/release-health/release-information",
      "https://learn.microsoft.com/en-us/windows/release-health/windows11-release-information"
    ],
    "lastModified": "2026-05-25T06:45:00.0000000Z",
    "lastCollected": "2026-05-25T06:45:00.0000000Z"
  },
  "data": [
    { "OSType": "Client", "MajorVersion": 11, "WindowsVersion": "24H2", "OSBuild": "26100", "FullVersion": "10.0.26100" },
    { "OSType": "Client", "MajorVersion": 11, "WindowsVersion": "23H2", "OSBuild": "22631", "FullVersion": "10.0.22631" },
    { "OSType": "Client", "MajorVersion": 10, "WindowsVersion": "22H2", "OSBuild": "19045", "FullVersion": "10.0.19045" }
  ]
}

Code examples

$response = Invoke-RestMethod 'https://api.datafornerds.io/v2/microsoft/windows-release-history.json'
$response.data | Sort-Object MajorVersion, WindowsVersion | Format-Table

import requests

data = requests.get("https://api.datafornerds.io/v2/microsoft/windows-release-history.json").json()["data"]
version_map = {f"Windows {r['MajorVersion']} {r['WindowsVersion']}": r["OSBuild"] for r in data}
for name, build in version_map.items():
    print(f"{name}: build {build}")

curl -s https://api.datafornerds.io/v2/microsoft/windows-release-history.json \
  | jq '.data[] | "\(.MajorVersion) \(.WindowsVersion): build \(.OSBuild)"'

JSON Schema

/v2/microsoft/schemas/windows-release-history.schema.json