| 2024-09-17 16:30:25 | psenough | Added Wild Styles as a subgroup of Sigma |
| 2022-02-12 16:40:34 | menace | Added X-Factor as a member of Sigma |
| 2021-10-30 09:28:35 | menace | Added Mr. Coathanger as a member of Sigma |
| 2021-10-30 08:00:07 | menace | Added Max as a member of Sigma |
| 2021-10-30 07:25:29 | menace | Added Lynx as a member of Sigma |
| 2021-07-15 08:04:09 | menace | Added Big H as a member of Sigma |
| 2019-11-08 19:53:16 | ltk_tscc | Edited nick 'Sigma': changed differentiator to 'c64' |
| 2019-11-08 19:53:11 | ltk_tscc | Added links: http://csdb.dk/group/?id=3193, https://www.pouet.net/groups.php?which=9841 |
| 2019-11-08 19:52:55 | ltk_tscc | Added nick 'The Sigma Crew' |
| 2019-11-08 19:52:44 | ltk_tscc | Added group 'Sigma' |