| 2023-06-13 17:14:20 | dipswitch | Updated Bishop's membership of Zenon: set as ex-member |
| 2023-06-13 17:14:14 | dipswitch | Added Bishop as a member of Zenon |
| 2021-12-26 16:34:24 | menace | Edited notes |
| 2021-12-26 16:33:59 | menace | Edited notes |
| 2021-12-26 16:33:40 | menace | Edited notes |
| 2021-12-21 21:47:16 | menace | Added Nemesis as a member of Zenon |
| 2021-12-21 21:46:08 | menace | Added JH-Pro as a member of Zenon |
| 2021-04-14 23:36:42 | dipswitch | Updated Zenon's affiliation with High Five: changed role to EHQ |
| 2021-04-09 23:18:48 | dipswitch | Added BBS High Five as HQ for Zenon |
| 2020-07-26 18:42:50 | Marq | Removed Yzi as a member of Zenon |
| 2019-09-10 17:56:15 | ltk_tscc | Added link https://www.pouet.net/groups.php?which=952 |
| 2019-08-20 06:26:17 | menace | Removed Deadbeat as a member of Zenon |
| 2019-08-20 06:25:48 | menace | Updated Broom's membership of Zenon: changed group to Zenon, set as ex-member |
| 2018-05-27 22:02:23 | Brittle | Added Deetail as a member of Zenon |
| 2017-02-17 06:42:34 | menace | Updated Deadbeat's membership of Zenon: changed group to Zenon, set as ex-member |
| 2015-11-20 07:51:33 | exocet | Added Khaos as a member of Zenon |
| 2013-11-27 18:17:21 | menace | Added DEADBEAT as a member of Zenon |
| 2013-11-24 15:46:46 | menace | Added Maze as a member of Zenon |
| 2013-05-17 02:55:49 | ccr | Added Brm. as a member of Zenon |
| 2013-02-15 15:29:10 | menace | Edited nick 'Zenon': changed abbreviation to 'ZNN' |