| 2026-02-23 18:31:42 | Brittle | Updated Jer's credit on Speedway: Code, Graphics |
| 2026-02-23 18:31:31 | Brittle | Added credit for Jer on Speedway: Code |
| 2026-02-23 18:29:26 | Brittle | Added credit for Jer on Break Through II: Code |
| 2026-02-23 18:27:37 | Brittle | Added credit for Jer on Breakthrough: Code |
| 2026-02-23 18:26:04 | Brittle | Added credit for Jer on Northern Lights: Code |
| 2026-02-12 06:18:19 | menace | Updated Jer's membership of Alpha Design: set as ex-member |
| 2026-02-12 06:18:00 | menace | Updated Jer's membership of Panic: set as ex-member |
| 2024-12-31 09:11:10 | menace | Added credit for Jer on Digi Music Creator (DMC) V1: Code |
| 2024-11-05 14:31:27 | Brittle | Set location to Jyväskylä, Central Finland, Finland |
| 2023-08-25 15:47:11 | Brittle | Added Jer as a member of Laxity |
| 2022-04-09 17:34:08 | phoenix | Updated Jer's membership of Alpha Design: changed group to Alpha Design |
| 2022-04-09 17:33:33 | phoenix | Added Jer as a member of Mango |
| 2020-01-14 03:55:00 | menace | Added link http://csdb.dk/scener/?id=20029 |
| 2020-01-14 03:54:55 | menace | Added nick 'Jarzenegger' |
| 2020-01-14 03:54:36 | menace | Added link http://csdb.dk/scener/?id=628 |
| 2019-09-16 04:33:39 | menace | Updated Jer's membership of NoName: changed group to NoName, set as ex-member |
| 2015-06-25 07:44:37 | menace | Added credit for Jer on FlashBack: Code |
| 2014-09-12 09:44:57 | menace | Added credit for Jer on Speedway 2: Code, Graphics |