{
  "date": "2026-10-17",
  "engine": "5.8.3",
  "previousEngine": "5.7.4",
  "tests": {
    "succeeded": 68,
    "failed": 0,
    "notRun": 0,
    "succeededWithWarnings": 0
  },
  "resavedPackages": 32,
  "runtimeChecks": [
    "editor-assets",
    "editor-terrain",
    "packaged-terrain",
    "packaged-original",
    "packaged-legacy",
    "packaged-surface-nets",
    "packaged-water"
  ],
  "status": "PASS",
  "performanceNote": "Migration checks cover compatibility. Historical performance tables remain UE 5.7.4; the later UE 5.8.3 terrain run is separate at /data/terrain-step-costs.json."
}