| 2023-03-24 17:14:01 | menace | Added BBS Skynet as HQ for Abstract |
| 2023-03-24 17:13:34 | menace | Added Xannor as a member of Abstract |
| 2022-06-12 06:32:05 | menace | Added Abstract as organiser of Abstract and Oxygen Summer Conference 1992 |
| 2022-06-12 06:31:28 | menace | Removed Abstract as organiser of Abstract and Oxygen Summer Conference 1992 |
| 2022-06-12 06:30:07 | menace | Added Abstract as organiser of Abstract and Oxygen Summer Conference 1992 |
| 2022-06-12 06:25:44 | menace | Added BBS Altair as HQ for Abstract |
| 2019-09-16 14:07:32 | ltk_tscc | Added link https://www.pouet.net/groups.php?which=10211 |
| 2018-09-30 17:20:38 | 100bit | Added Marcz as a member of Abstract |
| 2018-09-30 17:20:11 | 100bit | Added Jmp as a member of Abstract |
| 2018-09-30 17:14:14 | 100bit | Added Arthur as a member of Abstract |
| 2018-09-30 17:10:14 | 100bit | Added Jazz as a member of Abstract |
| 2018-09-30 17:04:02 | 100bit | Added Orchid as a member of Abstract |
| 2017-06-14 11:45:54 | menace | Added Booger as a member of Abstract |
| 2016-08-25 16:34:22 | ltk_tscc | Updated Clive's membership of Abstract: changed group to Abstract |
| 2015-08-09 11:30:29 | ltk_tscc | Added link http://janeway.exotica.org.uk/author.php?id=12876 |
| 2015-08-09 11:30:20 | ltk_tscc | Edited nick 'Abstract': changed differentiator to 'amiga' |