{
  "date": "2026-09-06",
  "version": "1.3.0-rc.5",
  "application_commit": "4b8f320",
  "server_tools_commit": "708bfc2",
  "build_time": "2026-09-06T17:01:10Z",
  "atlas_task": "027fa685-1ab1-41a4-a46c-b3e2a96d2d3b",
  "fixes": [
    "Remove the exact reserved legacy MPC-QT setup filename after a guarded MPV install/update commits, including downloads from older releases and incomplete downloads.",
    "Inspect and delete the same Windows file handle, deny replacement during cleanup, and retain directories/reparse points. Cleanup failure warns without blocking the MPV operation; the filename stays excluded from payload ownership.",
    "Future MPC-QT downloads remain in unique temporary staging with terminal cleanup."
  ],
  "validation": {
    "go_test_race_all": "passed",
    "make_lint": "passed",
    "npm_test": "182 passed",
    "frontend_vendor_check": "passed",
    "six_target_build": "passed",
    "native_windows_regressions": "Fresh install, zero-byte partial download, existing managed install, pre-commit cancellation, locked file, directory and real symlink preservation all passed. Previous six MPC-QT staging outcomes and ownership preservation regression passed.",
    "browser_application": "Actual Windows Web install/update/uninstall/reinstall in one disposable default directory passed; setup cleanup verified after install and existing-install update, with real mpv launches and user config preserved. Set default app/cleanup also passed. Windows/macOS/Linux each passed 22 route checks and authenticated signed metadata availability."
  },
  "manifest": {
    "url": "https://mpv.rocks/api/releases/rc.json",
    "sha256": "f6d779c7a3ca90be5c1274e3e3a44de9b7821f091363f08a451b0598898b0f2c",
    "channel": "rc",
    "key_id": "rc-2026-09",
    "published_at": "2026-09-06T17:01:54Z",
    "public_bytes_match_signed_output": true
  },
  "legacy": {
    "version": "1.2.0",
    "unchanged_by_rc5_publication": true,
    "sha256": "7375977cd15bde6e126bbce67fcae2f52e7b804b94c86a7cc6f4940e8f22133e",
    "timer": "active",
    "stable_manifest": "absent"
  },
  "artifacts": [
    {
      "file": "mpv-manager-linux-amd64",
      "url": "https://mpv.rocks/api/releases/artifacts/v1.3.0-rc.5/mpv-manager-linux-amd64",
      "size": 29499552,
      "sha256": "db8774aea83f58a47062463dd4bc662a87cac05cb1d6a36c8850b91ba0f55e92",
      "blake3": "b842bbaeaac3e412a5cd0a2de0c6310123c1b1c9d34dfc8a7bd262c9e3133b94",
      "public_bytes_match_local": true
    },
    {
      "file": "mpv-manager-linux-arm64",
      "url": "https://mpv.rocks/api/releases/artifacts/v1.3.0-rc.5/mpv-manager-linux-arm64",
      "size": 28246176,
      "sha256": "f7955bab79b195c99132d93d67c67b643a0637f3df6569789895c1aab7b818e3",
      "blake3": "0f2f292fbee7552587ad808cd7b57e37c7c93821837465d48fac6a24211e3055",
      "public_bytes_match_local": true
    },
    {
      "file": "mpv-manager-win-x86_64.exe",
      "url": "https://mpv.rocks/api/releases/artifacts/v1.3.0-rc.5/mpv-manager-win-x86_64.exe",
      "size": 29764608,
      "sha256": "52bf597201824861f07eb40aef4f4b905a240212a738ba125e82c89df68771cd",
      "blake3": "d5949a5b0d41227d2c68ada139a755f4e34580d9f8d2f58fa9ae0f6250ed8086",
      "public_bytes_match_local": true
    },
    {
      "file": "mpv-manager-win-arm64.exe",
      "url": "https://mpv.rocks/api/releases/artifacts/v1.3.0-rc.5/mpv-manager-win-arm64.exe",
      "size": 28261888,
      "sha256": "7518c9cba9a17f46304c7d4ba6d9cd78b336bb3200b216c73d7abe944e62f5fe",
      "blake3": "d7fc93cc19369860ca6c693c331f22f195ab0ea85f2ac4f06269eb9d154de4a5",
      "public_bytes_match_local": true
    },
    {
      "file": "mpv-manager-macos-intel",
      "url": "https://mpv.rocks/api/releases/artifacts/v1.3.0-rc.5/mpv-manager-macos-intel",
      "size": 29488448,
      "sha256": "de180e75bd38d1d7bcee62036041f0d802697e7f40459bf6271d8086bc4e8ed9",
      "blake3": "3fe3cac4ab7e9a3f5d884aaf963adf2126a692c78ea95a19fb76884d05f4d62c",
      "public_bytes_match_local": true
    },
    {
      "file": "mpv-manager-macos-arm",
      "url": "https://mpv.rocks/api/releases/artifacts/v1.3.0-rc.5/mpv-manager-macos-arm",
      "size": 28409602,
      "sha256": "d542333a1de8982560bf2ecbffe83b7aea9a0c0eecbfeeb366afac9cae397c44",
      "blake3": "0ed6dbf4d73606166edf036780ce7eb124aa3929d6b4153f710802e917fa36d0",
      "public_bytes_match_local": true
    }
  ],
  "upstream_mirrors": "Unchanged original reviewed Windows mpv/FFmpeg bytes and immutable URLs from RC4; see results-rc4.json for public digest/size verification and source replacement evidence.",
  "application_smoke": {
    "windows": {
      "identity": {
        "product": "mpv-manager",
        "component": "manager-portable",
        "version": "1.3.0-rc.5",
        "goos": "windows",
        "goarch": "amd64",
        "build_time": "2026-09-06T17:01:10Z",
        "git_commit": "4b8f320"
      },
      "manifest": {
        "status": 200,
        "data": {
          "available": true,
          "version": "1.3.0-rc.5"
        }
      },
      "installation": {
        "defaultAppSetup": {
          "registered": true,
          "settingsLaunchAccepted": true,
          "userDefaultSelection": "manual QA remains",
          "registrationRemovedAfterQA": true
        },
        "method": "mpv-binary",
        "defaultPath": true,
        "status": "complete",
        "installedIdentity": [
          "mpv v0.41.0-1035-g876ba7b28 Copyright \u00a9 2000-2026 mpv/MPlayer/mplayer2 projects\r",
          " built on Sep  6 2026 00:18:26\r",
          "libplacebo version: v7.371.0 (v7.360.0-124-g3330a51-dirty)\r",
          "FFmpeg version: N-126434-gc6e28adab\r"
        ],
        "existingInstallUpdate": {
          "status": "complete",
          "partialLegacySetupRemoved": true,
          "userFilesPreserved": true,
          "mpvLaunch": 0
        },
        "reinstallation": {
          "uninstall": "complete",
          "reinstall": {
            "status": "complete",
            "installedIdentity": [
              "mpv v0.41.0-1035-g876ba7b28 Copyright \u00a9 2000-2026 mpv/MPlayer/mplayer2 projects\r",
              " built on Sep  6 2026 00:18:26\r",
              "libplacebo version: v7.371.0 (v7.360.0-124-g3330a51-dirty)\r",
              "FFmpeg version: N-126434-gc6e28adab\r"
            ]
          },
          "sameDefaultDirectory": true
        },
        "legacySetupRemoved": true,
        "startupEntries": [
          "..mpv-manager-config-coordination.lock",
          ".mpv-manager-installer.lock",
          "portable_config"
        ],
        "userFilesPreserved": true,
        "lockFilesPreserved": true
      },
      "routeChecks": 22,
      "unauthenticatedAPI": 401,
      "shutdown": 200,
      "exitCode": 0,
      "errors": []
    },
    "macos": {
      "identity": {
        "product": "mpv-manager",
        "component": "manager-portable",
        "version": "1.3.0-rc.5",
        "goos": "darwin",
        "goarch": "arm64",
        "build_time": "2026-09-06T17:01:10Z",
        "git_commit": "4b8f320"
      },
      "manifest": {
        "status": 200,
        "data": {
          "available": true,
          "version": "1.3.0-rc.5"
        }
      },
      "routeChecks": 22,
      "unauthenticatedAPI": 401,
      "shutdown": 200,
      "exitCode": 0,
      "errors": []
    },
    "linux": {
      "identity": {
        "product": "mpv-manager",
        "component": "manager-portable",
        "version": "1.3.0-rc.5",
        "goos": "linux",
        "goarch": "amd64",
        "build_time": "2026-09-06T17:01:10Z",
        "git_commit": "4b8f320"
      },
      "manifest": {
        "status": 200,
        "data": {
          "available": true,
          "version": "1.3.0-rc.5"
        }
      },
      "routeChecks": 22,
      "unauthenticatedAPI": 401,
      "shutdown": 200,
      "exitCode": 0,
      "errors": []
    }
  },
  "owner_requested_cleanup": {
    "sha256": "17e4dde24098cbe12261df563c80b203f6bad3483e774ffea6d83cd97894a557",
    "removed": true,
    "filename": "mpc-qt-setup.exe",
    "verifiedKnownDownload": true
  },
  "remaining": [
    "Owner manual acceptance, including actual file-type selection in Windows Settings; a successful launch is not proof of chosen defaults.",
    "Browser-download quarantine/SmartScreen/Gatekeeper and permission outcomes.",
    "Historical-client bootstrap, stable production trust/authorization, protected release-chain rehearsal and final approval.",
    "Windows arm64, macOS Intel and Linux arm64 native coverage or owner exception.",
    "Platform signing remains deferred to v1.4.0."
  ],
  "publication": "RC5 only; earlier immutable RC artifacts retained; no Git push or final stable release."
}