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Returns the latest known point release and its release date for the given macOS major version. No board ID is required — the API resolves the record using a canonical representative Mac for that era.

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Endpoint

GET https://proximosapi.enlazosystems.com/items/{majorVersion}
Authorization: YOUR_DECODED_LICENSE_KEY

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Path Parameter

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majorVersion
string
required
The macOS major version number.
EraFormatExamples
Modern macOS (11+)Single integer14, 15, 26
macOS 10.xTwo-part (10.Y)10.15, 10.14, 10.9
Classic Mac OSTwo-part (X.Y)8.5, 9.2, 7.5
System 0.97As-is0.97

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Example Requests

curl -H "Authorization: YOUR_DECODED_LICENSE_KEY" \
  https://proximosapi.enlazosystems.com/items/26

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Responses

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Modern macOS (11+)

[
  {
    "major_version": "26",
    "board_id_major_version": "J293AP:26",
    "releasedDate": "2026-06-01",
    "version": "26.5.1",
    "resolved_board_id": "J293AP"
  }
]

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Classic Mac OS (System 0.97 – Mac OS 9.2.2)

[
  {
    "major_version": 8.5,
    "board_id_major_version": "G3:8.5",
    "releasedDate": "1998-11-10",
    "version": "8.5.1",
    "resolved_board_id": "G3"
  }
]

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Response Fields

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major_version
string | number
The macOS major version. A string for modern macOS; a number for Classic Mac OS.
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board_id_major_version
string
The internal DynamoDB composite key: {board_id}:{major_version}.
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releasedDate
string
Release date of the latest point release for this major version, in YYYY-MM-DD format.
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version
string
The latest known point release for this major version.
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resolved_board_id
string
The board ID used to resolve this record. This is a canonical representative Mac for the era:
  • Modern macOS (11+): J293AP (M1 MacBook Pro)
  • macOS 10.0–10.5: PowerPC
  • macOS 10.6–10.15: Intel board IDs (e.g. Mac-F4208EAA)
  • Classic Mac OS: processor model (e.g. G3, 68040)

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Notes

  • Passing a full point release (e.g. 14.7.2) to this endpoint will still return the latest release for that major version, not the specific version you passed. To look up a specific point release, use GET /items/:.
  • The response is always an array containing one item.