{
  "version": "20260415",
  "timestamp": "2026-04-15T07:35:38.270531+00:00",
  "files": [
    "VERSION_MANIFEST.json",
    "feature_metadata_20260415.json",
    "hdb_feature_table_20260415.csv",
    "hdb_feature_test_20260415.csv",
    "hdb_feature_train_20260415.csv"
  ],
  "duplicates_removed": 0,
  "total_rows": 263004,
  "train_rows": 180195,
  "test_rows": 82809,
  "split_year": 2023,
  "school_quality_fix": "20260415 - recomputed from Phase 2B/2C competition ratios",
  "old_versions_removed": 0
}