| 2023-08-29 23:13:29 | 100bit | Added link https://events.retroscene.org/undefined2023 |
| 2023-08-29 22:41:43 | 100bit | Added competition Realtime c53 animation |
| 2023-08-29 22:39:58 | 100bit | Added competition Fantasy Console |
| 2023-08-29 22:34:34 | 100bit | Added competition Wild |
| 2023-08-29 22:31:37 | 100bit | Added competition Animated GIF |
| 2023-08-29 22:28:32 | 100bit | Added competition Special chip-tune music |
| 2023-08-29 21:42:35 | psenough | Added competition Retro Demo/Intro Combined |
| 2023-08-27 20:26:40 | ded | Added link https://files.scene.org/browse/parties/2023/undefined23/ |
| 2023-05-01 07:41:49 | Brittle | Added nikhotmsk as organiser of Undefined 2023 Summer |
| 2023-05-01 07:41:33 | Brittle | Set name to 'Undefined 2023 Summer', website to https://undefined.chaosconstructions.ru/ |
| 2023-04-16 23:20:40 | nikhotmsk | Added party 'Undefined summer 2023' |