| 2023-03-23 09:21:13 | menace | Added Radio Fucom as a member of Defcon One |
| 2022-12-07 05:57:27 | menace | Added credit for Defcon One on Sounddisk 3: Music |
| 2021-01-03 06:50:47 | menace | Updated Pioneer's membership of Defcon One: set as ex-member |
| 2021-01-03 06:49:05 | menace | Updated Crime's membership of Defcon One: set as ex-member |
| 2020-07-24 15:12:15 | 100bit | Updated Asphyx's membership of Defcon One: changed group to Defcon One |
| 2020-07-24 15:11:50 | 100bit | Edited nick 'Defcon One': changed differentiator to 'amiga/early 90s' |
| 2020-07-24 15:11:35 | 100bit | Updated Crime's membership of Defcon One: changed group to Defcon One |
| 2019-10-10 18:33:22 | ltk_tscc | Added link https://www.pouet.net/groups.php?which=4908 |
| 2019-04-06 23:38:06 | Ozan | Added Ozan as a member of Defcon One |
| 2017-07-08 19:15:25 | menace | Added The Comrade as a member of Defcon One |
| 2017-03-15 09:22:53 | dipswitch | Added Tyrant as a member of Defcon One |
| 2016-06-08 06:38:46 | menace | Edited nick 'Defcon One': changed differentiator to 'early 90s' |
| 2014-07-14 02:37:33 | dipswitch | Added DJ-Cat as a member of Defcon One |
| 2014-07-14 02:37:23 | dipswitch | Added link http://janeway.exotica.org.uk/author.php?id=355 |