| 2025-05-17 17:41:40 | dipswitch | Added Black Cat as organiser of SpeXtream 2004 |
| 2025-04-28 00:02:51 | dipswitch | Updated Black Cat as organiser of SpeXtream 2003: changed role to Web |
| 2025-04-28 00:02:19 | dipswitch | Added Black Cat as organiser of SpeXtream 2003 |
| 2025-03-02 21:15:39 | dipswitch | Set location to Cherkasy, Cherkasy Raion, Cherkasy Oblast, Ukraine |
| 2024-09-27 03:57:52 | psenough | Updated Black Cat's membership of Energy Group: changed member to Black Cat |