{
  "research_date": "2026-09-11",
  "scope": "Documentary research snapshot; unknown values remain null. Not live availability or account testing.",
  "records": [
    {
      "platform": "ps4",
      "version": "13.52",
      "change": "Security corrections.",
      "release_date": "2026-06-16",
      "release_date_source_id": "H753",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 13.52 to 2026-06-16. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "F03",
        "H753"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "13.50",
      "change": "Interface usability.",
      "release_date": "2026-03-17",
      "release_date_source_id": "H754",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 13.50 to 2026-03-17. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "H02",
        "F03",
        "H754"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "13.04",
      "change": "Security corrections.",
      "release_date": "2026-01-28",
      "release_date_source_id": "H755",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 13.04 to 2026-01-28. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "H02",
        "F03",
        "H755"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "13.02",
      "change": "Security corrections.",
      "release_date": "2025-10-01",
      "release_date_source_id": "H756",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 13.02 to 2025-10-01. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "H02",
        "F03",
        "H756"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "13.00",
      "change": "Interface usability.",
      "release_date": "2025-09-17",
      "release_date_source_id": "H757",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 13.00 to 2025-09-17. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "H02",
        "F03",
        "H757"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "12.52",
      "change": "Security corrections.",
      "release_date": "2025-07-09",
      "release_date_source_id": "H758",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 12.52 to 2025-07-09. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "H02",
        "F03",
        "H758"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "12.50",
      "change": "Interface usability.",
      "release_date": "2025-03-25",
      "release_date_source_id": "H759",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 12.50 to 2025-03-25. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "H02",
        "F03",
        "H759"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "12.02",
      "change": "Security corrections.",
      "release_date": "2025-01-30",
      "release_date_source_id": "H760",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 12.02 to 2025-01-30. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "H02",
        "F03",
        "H760"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "12.00",
      "change": "Interface usability.",
      "release_date": "2024-09-12",
      "release_date_source_id": "H761",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 12.00 to 2024-09-12. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "H02",
        "F03",
        "H761"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "11.52",
      "change": "Security and interface maintenance.",
      "release_date": "2024-07-17",
      "release_date_source_id": "H762",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 11.52 to 2024-07-17. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "H02",
        "F03",
        "H762"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "11.50",
      "change": "Stability and interface maintenance.",
      "release_date": "2024-03-13",
      "release_date_source_id": "H763",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 11.50 to 2024-03-13. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "H02",
        "F03",
        "H763"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "11.02",
      "change": "Security, stability and interface maintenance.",
      "release_date": "2023-12-06",
      "release_date_source_id": "H764",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 11.02 to 2023-12-06. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "H02",
        "F03",
        "H764"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "11.00",
      "change": "PS App QR sign-in; message reactions.",
      "release_date": "2023-09-13",
      "release_date_source_id": "H765",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 11.00 to 2023-09-13. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "H02",
        "F03",
        "H765"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "10.71",
      "change": "Improved system performance. Sony did not identify individual changes in this notice.",
      "release_date": "2023-08-10",
      "release_date_source_id": "H675",
      "release_region": "Sony English-language support",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony's support page explicitly states that this system-software update was released on 2023-08-10. The archive capture is separate; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H675"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "10.70",
      "change": "Improved system performance. Sony did not identify individual changes in this notice.",
      "release_date": "2023-07-20",
      "release_date_source_id": "H676",
      "release_region": "Sony English-language support",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony's support page explicitly states that this system-software update was released on 2023-07-20. The archive capture is separate; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H676"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "10.50",
      "change": "Authorized apps; online friends; emoji and cross-platform indicators.",
      "release_date": "2023-03-08",
      "release_date_source_id": "H766",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 10.50 to 2023-03-08. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "H02",
        "F03",
        "H766"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "10.01",
      "change": "Performance maintenance.",
      "release_date": "2022-09-21",
      "release_date_source_id": "H767",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Exact release date not supplied by the retained notes. The exact-version chronology dates PS4 10.01 to 2022-09-21. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony notes",
      "variants": null,
      "source_ids": [
        "H02",
        "F03",
        "H767"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "10.00",
      "change": "Added two browser zoom modes with up to 500% magnification and direct keyboard input and compatible-game control through PS Remote Play on PC or Mac.",
      "release_date": "2022-09-07",
      "release_date_source_id": "H677",
      "release_region": "Sony English-language support",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony's support page explicitly states that this system-software update was released on 2022-09-07. The archive capture is separate; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H677"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "9.60",
      "change": "Improved system performance. Sony did not identify individual changes in this notice.",
      "release_date": "2022-05-12",
      "release_date_source_id": "H678",
      "release_region": "Sony English-language support",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony's support page explicitly states that this system-software update was released on 2022-05-12. The archive capture is separate; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H678"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "9.51",
      "change": "Improved system performance. Sony did not identify individual changes in this notice.",
      "release_date": "2022-04-13",
      "release_date_source_id": "H679",
      "release_region": "Sony English-language support",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony's support page explicitly states that this system-software update was released on 2022-04-13. The archive capture is separate; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H679"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "9.50",
      "change": "Added open and closed parties, per-player voice-chat volume controls and Ukrainian language support.",
      "release_date": "2022-03-23",
      "release_date_source_id": "H680",
      "release_region": "Sony English-language support",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony's support page explicitly states that this system-software update was released on 2022-03-23. The archive capture is separate; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H680"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "9.04",
      "change": "Improved system performance. Sony did not identify individual changes in this notice.",
      "release_date": "2022-02-19",
      "release_date_source_id": "H681",
      "release_region": "Sony English-language support",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony's support page explicitly states that this system-software update was released on 2022-02-19. The archive capture is separate; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H681"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "9.03",
      "change": "Improved system performance. Sony did not identify individual changes in this notice.",
      "release_date": "2021-12-01",
      "release_date_source_id": "H682",
      "release_region": "Sony English-language support",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony's support page explicitly states that this system-software update was released on 2021-12-01. The archive capture is separate; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H682"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "9.00",
      "change": "Added PS5 trophies to PS4 trophy views, group-owner deletion and a block-and-leave option in Messages, mobile-data support for PS Remote Play, and expanded parental-control notifications.",
      "release_date": "2021-09-15",
      "release_date_source_id": "H846",
      "release_region": "Technical chronology; regional scope unspecified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": "2021-09-15",
      "available_by_region": "United States support page",
      "available_by_source_id": "H674",
      "announcement_date": null,
      "date_note": "The archived US support page identifies 9.00 and its version-specific features. Its 2021-09-15 capture establishes availability by that date, not an exact release day or worldwide timestamp. Technical chronology release date: 2021-09-15. This is separate from the archived support-page capture time.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H674",
        "H846"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "8.52",
      "change": "Improved system performance. Sony did not identify individual changes in this notice.",
      "release_date": "2021-06-22",
      "release_date_source_id": "H683",
      "release_region": "Sony English-language support",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony's support page explicitly states that this system-software update was released on 2021-06-22. The archive capture is separate; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H683"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "8.50",
      "change": "Added PS5 Share Play in parties, per-group message notifications and join requests; revised hidden-game visibility and extended-storage format, and removed Communities.",
      "release_date": "2021-04-14",
      "release_date_source_id": "H684",
      "release_region": "Sony English-language support",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony's support page explicitly states that this system-software update was released on 2021-04-14. The archive capture is separate; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H684"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "8.03",
      "change": "Added a Quick Menu control that disables game chat audio without affecting party chat audio.",
      "release_date": "2020-12-09",
      "release_date_source_id": "H768",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "The archived Sony support page retains this version-specific note but does not provide an attributable release day in the reviewed capture. The exact-version chronology dates PS4 8.03 to 2020-12-09. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H685",
        "H768"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "8.01",
      "change": "Improved system performance. Sony did not identify individual changes in this notice.",
      "release_date": "2020-11-18",
      "release_date_source_id": "H686",
      "release_region": "Sony English-language support",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony's support page explicitly states that this system-software update was released on 2020-11-18. The archive capture is separate; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H686"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "8.00",
      "change": "Party/message groups; parental controls; authenticator apps.",
      "release_date": "2020-10-14",
      "release_date_source_id": "H418",
      "release_region": "Global rollout as stated by Sony",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2020-10-14",
      "date_note": "Global launch announced that day Sony's October 14, 2020 article explicitly identifies a global rollout that day and includes a post-update clarification. This is a rollout day, not a claim of simultaneous installation everywhere.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "F15",
        "H418"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "7.55",
      "change": "Improved system performance. Sony did not identify individual changes in this notice.",
      "release_date": "2020-08-26",
      "release_date_source_id": "H769",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "The archived Sony support page retains this version-specific note but does not provide an attributable release day in the reviewed capture. The exact-version chronology dates PS4 7.55 to 2020-08-26. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H687",
        "H769"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "7.51",
      "change": "Improved system performance. Sony did not identify individual changes in this notice.",
      "release_date": "2020-05-27",
      "release_date_source_id": "H770",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "The archived Sony support page retains this version-specific note but does not provide an attributable release day in the reviewed capture. The exact-version chronology dates PS4 7.51 to 2020-05-27. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H688",
        "H770"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "7.50",
      "change": "Improved system performance. Sony did not identify individual changes in this notice.",
      "release_date": "2020-04-16",
      "release_date_source_id": "H771",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "The archived Sony support page retains this version-specific note but does not provide an attributable release day in the reviewed capture. The exact-version chronology dates PS4 7.50 to 2020-04-16. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H689",
        "H771"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "7.02",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2019-12-19",
      "release_date_source_id": "H596",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 7.02 update began on 2019-12-19. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H596"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "7.01",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2019-12-11",
      "release_date_source_id": "H669",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 7.01 update began on 2019-12-11. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H597",
        "H669"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "7.00",
      "change": "Parties expanded to 16 people with connectivity/audio changes and US chat transcription. Remote Play expanded to Android 5.0 or later.",
      "release_date": "2019-10-08",
      "release_date_source_id": "H598",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2019-10-06",
      "date_note": "Announced for the week of October 6, 2019; no exact global release day assigned. Sony Japan's dated update-history entry lists 7.00 on 2019-10-08. This is Japanese history-index evidence, not a capture timestamp or a claim that the linked release-note body was reviewed.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "H301",
        "H598"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "6.72",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2019-07-16",
      "release_date_source_id": "H599",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 6.72 update began on 2019-07-16. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H599"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "6.71",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2019-06-04",
      "release_date_source_id": "H670",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 6.71 update began on 2019-06-04. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H600",
        "H670"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "6.70",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2019-05-30",
      "release_date_source_id": "H671",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 6.70 update began on 2019-05-30. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H601",
        "H671"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "6.51",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2019-03-28",
      "release_date_source_id": "H672",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 6.51 update began on 2019-03-28. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H602",
        "H672"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "6.50",
      "change": "Added iOS Remote Play, 720p Niconico broadcasting and a setting to switch the confirm button from Circle to Cross.",
      "release_date": "2019-03-07",
      "release_date_source_id": "H325",
      "release_region": null,
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2019-03-07",
      "date_note": "Japanese announcement explicitly reports implementation on March 7 at 18:00. Feature restrictions describe the historical release.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "H325"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "6.20",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2018-12-12",
      "release_date_source_id": "H673",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 6.20 update began on 2018-12-12. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H603",
        "H673"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "6.02",
      "change": "Improved system-software stability and addressed an error that occurred when receiving certain messages.",
      "release_date": "2018-10-17",
      "release_date_source_id": "H668",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 6.02 update began on 2018-10-17. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H604",
        "H668"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "6.00",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2018-09-13",
      "release_date_source_id": "H667",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 6.00 update began on 2018-09-13. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H605",
        "H667"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "5.56",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2018-08-31",
      "release_date_source_id": "H666",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 5.56 update began on 2018-08-31. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H606",
        "H666"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "5.55",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2018-05-17",
      "release_date_source_id": "H665",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 5.55 update began on 2018-05-17. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H607",
        "H665"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "5.53-01",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2018-04-24",
      "release_date_source_id": "H664",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 5.53-01 update began on 2018-04-24. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": "-01",
      "source_ids": [
        "H02",
        "H608",
        "H664"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "5.53",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2018-04-12",
      "release_date_source_id": "H663",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 5.53 update began on 2018-04-12. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H609",
        "H663"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "5.50",
      "change": "Added USB-image wallpapers, Play Time Management, Library tabs and hiding, Quick Menu shortcuts, notification deletion, tournament-page improvements and PS VR support icons. PS4 Pro gained optional supersampling; results vary by game.",
      "release_date": "2018-03-08",
      "release_date_source_id": "H417",
      "release_region": "European announcement",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2018-03-08",
      "date_note": "Sony's European final-rollout article dates launch to March 8, 2018 and distinguishes it from the earlier beta. Supersampling is PS4 Pro-only, not a base-PS4 feature; performance varies by title.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "H100",
        "H417"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "5.05",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2018-01-18",
      "release_date_source_id": "H662",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 5.05 update began on 2018-01-18. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H610",
        "H662"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "5.03",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2017-12-14",
      "release_date_source_id": "H661",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 5.03 update began on 2017-12-14. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H611",
        "H661"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "5.01",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2017-10-24",
      "release_date_source_id": "H660",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 5.01 update began on 2017-10-24. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H612",
        "H660"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "5.00",
      "change": "Family management and broadcasting improvements.",
      "release_date": "2017-10-03",
      "release_date_source_id": "H613",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": "2017-10-03",
      "available_by_region": "North American announcement",
      "available_by_source_id": "H419",
      "announcement_date": "2017-10-03",
      "date_note": "Available now, per announcement Available by October 3, 2017; not an independently established first-release day. Team Tournaments were scheduled separately for October 5, so that service date must not replace the firmware timing. Sony Japan's dated update-history entry lists 5.00 on 2017-10-03. This is Japanese history-index evidence, not a capture timestamp or a claim that the linked release-note body was reviewed.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "F14",
        "H419",
        "H613"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "4.74",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2017-09-14",
      "release_date_source_id": "H659",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 4.74 update began on 2017-09-14. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H614",
        "H659"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "4.73",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2017-08-02",
      "release_date_source_id": "H658",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 4.73 update began on 2017-08-02. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H615",
        "H658"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "4.72",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2017-07-11",
      "release_date_source_id": "H657",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 4.72 update began on 2017-07-11. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H616",
        "H657"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "4.71",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2017-06-22",
      "release_date_source_id": "H656",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 4.71 update began on 2017-06-22. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H617",
        "H656"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "4.70",
      "change": "Added viewing of each player’s match results in Tournaments and improved system-software stability.",
      "release_date": "2017-05-30",
      "release_date_source_id": "H655",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 4.70 update began on 2017-05-30. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H618",
        "H655"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "4.55",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2017-04-11",
      "release_date_source_id": "H654",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 4.55 update began on 2017-04-11. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H619",
        "H654"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "4.50",
      "change": "External USB storage; Pro-only Boost Mode.",
      "release_date": "2017-03-09",
      "release_date_source_id": "H620",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2017-03-08",
      "date_note": "Announced rollout: 2017-03-09 Sony Japan's dated update-history entry lists 4.50 on 2017-03-09. This is Japanese history-index evidence, not a capture timestamp or a claim that the linked release-note body was reviewed.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "F13",
        "H620"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "4.07",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2016-12-08",
      "release_date_source_id": "H653",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 4.07 update began on 2016-12-08. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H621",
        "H653"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "4.06",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2016-11-17",
      "release_date_source_id": "H652",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 4.06 update began on 2016-11-17. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H622",
        "H652"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "4.05",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2016-10-25",
      "release_date_source_id": "H623",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 4.05 update began on 2016-10-25. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H623"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "4.01",
      "change": "Fixed party voice chat being unavailable in some environments and improved system-software stability.",
      "release_date": "2016-10-03",
      "release_date_source_id": "H624",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 4.01 update began on 2016-10-03. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H624"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "4.00",
      "change": "Announced HDR support across PS4 models, folders and a redesigned Quick Menu in the final rollout announcement.",
      "release_date": "2016-09-13",
      "release_date_source_id": "H625",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2016-09-13",
      "date_note": "Japanese final-release announcement schedules rollout that day, with the time undetermined. Replaces beta-only classification; not a confirmed worldwide release timestamp. Sony Japan's dated update-history entry lists 4.00 on 2016-09-13. This is Japanese history-index evidence, not a capture timestamp or a claim that the linked release-note body was reviewed.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "H203",
        "H324",
        "H625"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "3.55",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2016-06-21",
      "release_date_source_id": "H651",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 3.55 update began on 2016-06-21. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H626",
        "H651"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "3.50",
      "change": "Appear Offline, friend-online notifications and scheduled events.",
      "release_date": "2016-04-06",
      "release_date_source_id": "H627",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2016-04-05",
      "date_note": "Rollout announced for 2016-04-06. Sony Japan's dated update-history entry lists 3.50 on 2016-04-06. This is Japanese history-index evidence, not a capture timestamp or a claim that the linked release-note body was reviewed.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "H204",
        "H627"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "3.15",
      "change": "Improved system performance. Sony did not identify individual changes in this notice.",
      "release_date": "2016-01-13",
      "release_date_source_id": "H650",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 3.15 update began on 2016-01-13. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H628",
        "H650"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "3.11",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2015-11-09",
      "release_date_source_id": "H649",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 3.11 update began on 2015-11-09. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H629",
        "H649"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "3.10",
      "change": "Added following of verified accounts for games, game-related public figures and companies, with their activity appearing in What's New; added message stickers.",
      "release_date": "2015-10-20",
      "release_date_source_id": "H630",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 3.10 update began on 2015-10-20. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H630"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "3.00",
      "change": "Expanded social features, Twitter clips and a dedicated Plus area.",
      "release_date": "2015-09-30",
      "release_date_source_id": "H631",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2015-09-29",
      "date_note": "Rollout announced for 2015-09-30. Sony Japan's dated update-history entry lists 3.00 on 2015-09-30. This is Japanese history-index evidence, not a capture timestamp or a claim that the linked release-note body was reviewed.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "H206",
        "H631"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "2.57",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2015-07-22",
      "release_date_source_id": "H632",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 2.57 update began on 2015-07-22. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H632"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "2.55",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2015-07-01",
      "release_date_source_id": "H633",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 2.55 update began on 2015-07-01. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H633"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "2.51",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2015-04-21",
      "release_date_source_id": "H634",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 2.51 update began on 2015-04-21. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H634"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "2.50",
      "change": "Suspend/Resume and USB hard-drive backup/restore.",
      "release_date": "2015-03-26",
      "release_date_source_id": "H635",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2015-03-25",
      "date_note": "Rollout announced for 2015-03-26. Sony Japan's dated update-history entry lists 2.50 on 2015-03-26. This is Japanese history-index evidence, not a capture timestamp or a claim that the linked release-note body was reviewed.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "H209",
        "H635"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "2.04",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2015-02-17",
      "release_date_source_id": "H636",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 2.04 update began on 2015-02-17. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H636"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "2.03",
      "change": "Improved operation of some applications; Sony did not name individual applications in this notice.",
      "release_date": "2014-12-03",
      "release_date_source_id": "H637",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 2.03 update began on 2014-12-03. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H637"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "2.02",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2014-11-11",
      "release_date_source_id": "H638",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 2.02 update began on 2014-11-11. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H638"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "2.01",
      "change": "Improved stability of system startup and standby operations.",
      "release_date": "2014-11-05",
      "release_date_source_id": "H639",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 2.01 update began on 2014-11-05. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H639"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "2.00",
      "change": "Share Play, YouTube sharing, USB music and themes.",
      "release_date": "2014-10-28",
      "release_date_source_id": "H640",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2014-10-27",
      "date_note": "Rollout announced for 2014-10-28. Sony Japan's dated update-history entry lists 2.00 on 2014-10-28. This is Japanese history-index evidence, not a capture timestamp or a claim that the linked release-note body was reviewed.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "H105",
        "H640"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.76",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2014-09-02",
      "release_date_source_id": "H641",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 1.76 update began on 2014-09-02. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H641"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.75",
      "change": "Announced Blu-ray 3D playback support.",
      "release_date": "2014-07-29",
      "release_date_source_id": "H642",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2014-07-24",
      "date_note": "French announcement scheduled the following week and explicitly did not yet give an exact date. Sony Japan's dated update-history entry lists 1.75 on 2014-07-29. This is Japanese history-index evidence, not a capture timestamp or a claim that the linked release-note body was reviewed.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "H326",
        "H642"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.74",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2014-07-22",
      "release_date_source_id": "H643",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 1.74 update began on 2014-07-22. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H643"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.72",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2014-06-24",
      "release_date_source_id": "H644",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 1.72 update began on 2014-06-24. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H644"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.71",
      "change": "Improved system-software operating stability. Sony did not identify individual fixes in this notice.",
      "release_date": "2014-06-03",
      "release_date_source_id": "H645",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 1.71 update began on 2014-06-03. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H645"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.70",
      "change": "SHAREfactory access and expanded sharing tools.",
      "release_date": "2014-04-30",
      "release_date_source_id": "H646",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2014-04-29",
      "date_note": "Rollout announced for 2014-04-30. Sony Japan's dated update-history entry lists 1.70 on 2014-04-30. This is Japanese history-index evidence, not a capture timestamp or a claim that the linked release-note body was reviewed.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "H107",
        "H646"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.62",
      "change": "Improved operation of some applications; Sony did not name individual applications in this notice.",
      "release_date": "2014-03-18",
      "release_date_source_id": "H647",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 1.62 update began on 2014-03-18. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H647"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.61",
      "change": "Improved DVD playback picture quality, added a PlayStation Camera microphone mute option and improved system-software stability.",
      "release_date": "2014-02-18",
      "release_date_source_id": "H648",
      "release_region": "Japan",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Sony Japan explicitly states that the 1.61 update began on 2014-02-18. The archive capture is not the release date; worldwide simultaneous availability is not inferred.",
      "status": "documented",
      "evidence_level": "Sony archived support",
      "variants": null,
      "source_ids": [
        "H02",
        "H648"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.60",
      "change": "Added PULSE and PULSE Elite wireless headset support.",
      "release_date": "2014-02-04",
      "release_date_source_id": "H847",
      "release_region": "Worldwide availability reported",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2014-02-03",
      "date_note": "North American announcement scheduled the download for late that night. Reported live worldwide on 2014-02-04, following Sony’s late-night February 3 North American schedule.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "H302",
        "H847"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.52",
      "change": "Improved system-software stability. PlayStation did not identify individual fixes in the reproduced announcement.",
      "release_date": "2013-12-11",
      "release_date_source_id": "H845",
      "release_region": "North America reporting; rollout described as live",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": "2013-12-11",
      "available_by_region": "PlayStation English-language announcement",
      "available_by_source_id": "H690",
      "announcement_date": "2013-12-11",
      "date_note": "PlayStation announced the update as imminent on December 11, 2013, while the contemporaneous reproduction reported it live that day. This establishes availability by December 11, not an exact first-release timestamp. Contemporary reporting identified version 1.52 as available on 2013-12-11, corroborating the separately retained same-day availability bound.",
      "status": "documented",
      "evidence_level": "PlayStation support post — reproduced",
      "variants": null,
      "source_ids": [
        "H02",
        "H690",
        "H845"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.51",
      "change": "Stability maintenance and clearer simultaneous game/update download indicators.",
      "release_date": "2013-11-20",
      "release_date_source_id": "H773",
      "release_region": "Release chronology; region not specified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2013-11-19",
      "date_note": "Announced for later that day in North America. The exact-version chronology dates PS4 1.51 to 2013-11-20. This is distinct from its package build date and does not replace independently sourced Sony change notes.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "H111",
        "H773"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.50b",
      "change": "Added Remote Play, Second Screen, gameplay recording and broadcasting, play while downloading, multiple-user login, Party voice chat, camera recognition and background music; online multiplayer required PlayStation Plus.",
      "release_date": "2013-11-12",
      "release_date_source_id": "H849",
      "release_region": "Technical package chronology; regional scope unspecified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "The exact-version page dates system and disc packages to 2013-11-12. The catalog-to-internal-version join is supported by the identical package MD5.",
      "status": "documented",
      "evidence_level": "Technical chronology",
      "variants": "b",
      "source_ids": [
        "H02",
        "H849"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.50",
      "change": "North American launch update: Remote Play and supported second-screen features.",
      "release_date": "2013-11-15",
      "release_date_source_id": "H752",
      "release_region": "North American launch",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": "2013-10-25",
      "date_note": "North American rollout announced for 2013-11-15. Sony explicitly states that PS4 1.50 would launch simultaneously with the North American console release on November 15, 2013. The date is regional, not a worldwide timestamp.",
      "status": "documented",
      "evidence_level": "Sony announcement",
      "variants": null,
      "source_ids": [
        "H02",
        "H113",
        "H752"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.07",
      "change": "Disc-distributed build identified with Need for Speed Rivals and other named game discs; no feature-level changelog or exact firmware date is documented.",
      "release_date": null,
      "release_date_source_id": null,
      "release_region": null,
      "release_date_status": "not_applicable",
      "release_date_status_reason": "Game-disc-only build; no public OTA release is evidenced.",
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Disc-distribution evidence only; no exact firmware release day is asserted. Game-disc-only build; no public OTA release is evidenced.",
      "status": "documented",
      "evidence_level": "Technical chronology",
      "variants": null,
      "source_ids": [
        "H02",
        "H841"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.06",
      "change": "System and disc packages were distributed, including on named launch-era game discs; the surviving technical record lists the changelog as unknown.",
      "release_date": "2013-11-14",
      "release_date_source_id": "H840",
      "release_region": "Technical chronology; regional scope unspecified",
      "release_date_status": null,
      "release_date_status_reason": null,
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "The exact-version chronology dates the system and disc packages to 2013-11-14 while marking recovery distribution unreleased.",
      "status": "documented",
      "evidence_level": "Technical chronology",
      "variants": null,
      "source_ids": [
        "H02",
        "H840"
      ],
      "observed_at": "2026-09-11"
    },
    {
      "platform": "ps4",
      "version": "1.05",
      "change": "Preinstalled on a second wave of PS4 systems manufactured in November 2013; the technical record labels the downloadable system and recovery packages unreleased and provides no feature changelog.",
      "release_date": null,
      "release_date_source_id": null,
      "release_region": null,
      "release_date_status": "not_applicable",
      "release_date_status_reason": "Factory-installed build whose system and recovery packages are recorded as unreleased.",
      "available_by": null,
      "available_by_region": null,
      "available_by_source_id": null,
      "announcement_date": null,
      "date_note": "Manufactured-in-November factory distribution is documented without an exact day. Factory-installed build whose system and recovery packages are recorded as unreleased.",
      "status": "documented",
      "evidence_level": "Technical chronology",
      "variants": null,
      "source_ids": [
        "H02",
        "H839"
      ],
      "observed_at": "2026-09-11"
    }
  ],
  "sources": {}
}