{
  "research_date": "2026-09-11",
  "scope": "Documentary research snapshot; unknown values remain null. Not live availability or account testing.",
  "records": [
    {
      "platform": "PS3",
      "version": "4.93",
      "change": "Performance maintenance.",
      "release_date": null,
      "date_note": "Exact release date not supplied by the retained notes.",
      "source_id": "F05",
      "observed_at": "2026-09-11"
    },
    {
      "platform": "PS3",
      "version": "4.92",
      "change": "Performance maintenance.",
      "release_date": null,
      "date_note": "Exact release date not supplied by the retained notes.",
      "source_id": "F05",
      "observed_at": "2026-09-11"
    },
    {
      "platform": "PS3",
      "version": "4.91",
      "change": "Performance maintenance.",
      "release_date": null,
      "date_note": "Exact release date not supplied by the retained notes.",
      "source_id": "F05",
      "observed_at": "2026-09-11"
    },
    {
      "platform": "PS3",
      "version": "4.90",
      "change": "Performance maintenance.",
      "release_date": null,
      "date_note": "Exact release date not supplied by the retained notes.",
      "source_id": "F05",
      "observed_at": "2026-09-11"
    },
    {
      "platform": "PS3",
      "version": "4.89",
      "change": "Device-password sign-in; account management moves to browser.",
      "release_date": null,
      "date_note": "Exact release date not supplied by the retained notes.",
      "source_id": "F05",
      "observed_at": "2026-09-11"
    },
    {
      "platform": "PS3",
      "version": "4.88",
      "change": "Performance maintenance.",
      "release_date": null,
      "date_note": "Exact release date not supplied by the retained notes.",
      "source_id": "F05",
      "observed_at": "2026-09-11"
    }
  ],
  "sources": {
    "F05": {
      "title": "PS3 system-software update",
      "original_url": "https://www.playstation.com/en-us/support/hardware/ps3/system-software/",
      "publisher": "Sony Interactive Entertainment / PlayStation",
      "type": "Primary documentation",
      "publication_date": null,
      "accessed_at": "2026-09-11",
      "claims_supported": "4.93 through 4.88; update methods; Blu-ray key renewal.",
      "limitations": "Retained notes are undated; latest listed is not a promise of future updates.",
      "retrieval_status": "Read during console-update research on 2026-09-11"
    }
  }
}