| 2025-12-06 14:59:56 | menace | Updated FTJ's membership of Sonic PC: set as ex-member |
| 2023-01-04 10:04:20 | ipggi | Updated Sonic PC's affiliation with Eleutheria: changed role to Distsite |
| 2023-01-04 09:58:46 | ipggi | Added affiliation with BBS Eleutheria for Sonic PC |
| 2022-06-06 23:20:30 | dipswitch | Updated Sonic PC's affiliation with Propaganda: changed role to Memberboard |
| 2021-05-19 23:22:17 | dipswitch | Added affiliation with BBS Propaganda for Sonic PC |
| 2021-05-19 20:12:52 | dipswitch | Added BBS Programmer's Paradise as WHQ for Sonic PC |
| 2021-04-02 04:20:48 | dipswitch | Added BBS Wonderland as Distsite for Sonic PC |
| 2021-03-09 11:09:31 | Brittle | Added Marvel as a member of Sonic PC |
| 2021-02-13 02:43:07 | dipswitch | Added BBS The Firm as HQ for Sonic PC |
| 2021-01-23 20:04:33 | dipswitch | Added BBS Pointbreak as HQ for Sonic PC |
| 2021-01-08 03:51:09 | menace | Added Sonic PC as organiser of Assembly 1994 |
| 2019-11-09 14:55:29 | ltk_tscc | Added link https://www.pouet.net/groups.php?which=480 |
| 2019-04-18 11:51:04 | Brittle | Updated Beatnik's membership of Sonic PC: changed group to Sonic PC, set as ex-member |
| 2018-10-31 14:40:32 | Brittle | Updated MD's membership of Sonic PC: changed group to Sonic PC, set as ex-member |