| 2022-08-05 20:45:55 | Brittle | Updated Mayday's credit on Porridgy: Music (end tune) |
| 2022-08-05 20:38:04 | Brittle | Added credit for Mayday on Porridgy: Music |
| 2021-11-05 18:02:45 | Brittle | Added credit for Mayday on Vattu: Music |
| 2021-10-24 09:40:36 | mayday | Set location to Lohja, Helsinki, Uusimaa, Finland |
| 2020-09-30 20:37:04 | mayday | Set location to Finland |
| 2020-09-30 20:35:27 | mayday | Set location to Lohja, Helsinki, Uusimaa, Finland |
| 2019-06-14 19:49:15 | mayday | Set location to Lohja, Helsinki, Uusimaa, Finland |
| 2019-06-11 22:01:33 | mayday | Added link https://scenestream.net/demovibes/artist/5815/ |
| 2019-06-11 03:05:30 | Brittle | Set real name |
| 2019-05-04 13:59:31 | dipswitch | Added link https://www.discogs.com/artist/6628531-Mayday-29 |
| 2018-10-06 21:41:35 | Ramonb5 | Added credit for Mayday on MoDS Volume 2: Music |
| 2018-08-04 15:23:13 | Brittle | Added link https://www.pouet.net/user.php?who=98165 |
| 2018-08-04 15:04:02 | Brittle | Added Mayday as a member of Hedelmae |
| 2016-01-17 19:00:10 | mayday | Set location to Lohja, Helsinki, Uusimaa, Finland |
| 2016-01-17 18:59:45 | mayday | Edited nick 'Mayday': changed aliases to '' |
| 2016-01-17 18:59:37 | mayday | Added nick 'MDee' |
| 2015-10-27 04:01:41 | menace | Added link http://amp.dascene.net/detail.php?view=4732 |
| 2015-06-08 22:00:05 | mayday | Set location to Lohja, Helsinki, Uusimaa, Finland |
| 2013-12-30 01:29:40 | dipswitch | Deleted Mayday's credit on November |
| 2013-12-30 01:28:48 | dipswitch | Updated Mayday's credit on November: Music |
| 2013-12-30 01:17:44 | mayday | Updated Mayday's credit on November: Music (for the game "AmiBlocks") |
| 2013-12-30 01:17:29 | mayday | Updated Mayday's credit on November: Music (Music for the game "AmiBlocks") |
| 2013-12-30 01:16:19 | mayday | Added credit for Mayday on November: Music (Music for the game "Amiblocks") |
| 2013-12-30 01:05:13 | mayday | Edited nick 'Mayday': changed aliases to 'MDee' |
| 2013-12-30 01:01:32 | mayday | Added Mayday as a member of Parallax Motion |
| 2013-12-29 22:23:30 | mayday | Added Mayday as a member of Entombed Demigods |
| 2013-08-01 20:33:35 | ccr | Updated Mayday's membership of Dimension: changed group to Dimension |
| 2013-08-01 20:33:26 | ccr | Added Mayday as a member of Dimension |
| 2013-08-01 20:33:19 | ccr | Added Mayday as a member of bREAKDOWN |
| 2013-08-01 20:33:11 | ccr | Removed Mayday as a member of Amorphous |
| 2013-08-01 20:32:22 | ccr | Set location to Finland |
| 2013-08-01 20:32:21 | ccr | Set location to Finland |
| 2013-08-01 20:12:33 | ccr | Added Mayday as a member of Amorphous |
| 2013-08-01 20:12:24 | ccr | Updated Mayday's credit on Electrical Movement: Code |