{
  "key": "example-guidebook",
  "title": "Example Guidebook (sample data, not a real title)",
  "series": "Example series",
  "catalog_code": "EXAMPLE",
  "current_version": "v1-2",
  "format_version": "format-3",
  "labels_verified": "2026-10-30",
  "current_url": "/digital-check-demo.html?v=1.2",
  "changes_since_previous": [
    "The free plan now has a daily message limit. When you reach it, the app offers a paid plan. You do not need to pay to keep learning: wait until the next day.",
    "The Settings menu is now called Preferences. Everything the guide shows is still there."
  ],
  "is_out_of_date": false
}