[1] JSON Feed - JSON Feed Version 1 (2020-08-11T17:02:07.000Z, 2020-10-07T02:39:56.452Z) https://jsonfeed.org/version/1#extensions

[2] JSON Feed - JSON Feed Version 1.1 (2020-08-11T17:02:07.000Z, 2020-10-07T03:11:52.847Z) https://jsonfeed.org/version/1.1#extensions