v3_to_v4.diff

3c3
<   "version": 3,
---
>   "version": 4,
188c188,189
<             }
---
>             },
>             "caption": ""
272c273,274
<             }
---
>             },
>             "caption": ""
333c335,336
<                 }
---
>                 },
>                 "caption": ""
416c419,420
<                 }
---
>                 },
>                 "caption": ""
489c493,494
<                 }
---
>                 },
>                 "caption": ""