| 2022-08-09 19:23:18 | lambdacore | Added Verschdl as organiser of Underground Conference 2021 |
| 2022-08-09 19:20:28 | lambdacore | Added Fashion as organiser of Underground Conference 2021 |
| 2022-08-09 19:20:10 | lambdacore | Added broeselva as organiser of Underground Conference 2021 |
| 2022-08-09 19:19:48 | lambdacore | Added Ronny as organiser of Underground Conference 2021 |
| 2022-08-09 19:19:36 | lambdacore | Added Yoda as organiser of Underground Conference 2021 |
| 2022-08-09 09:25:02 | lambdacore | Added Lambdacore as organiser of Underground Conference 2021 |
| 2021-10-15 15:53:53 | Saga_Musix | Added dritter as organiser of Underground Conference 2021 |
| 2021-10-15 15:53:49 | Saga_Musix | Added milp as organiser of Underground Conference 2021 |
| 2021-09-18 11:44:08 | ltk_tscc | Set releases to Jakob Bienenhalm LIVE in Concert at UC11 |
| 2021-08-18 00:30:34 | RufUsul | Added competition Multichannel with Livesupport |
| 2021-08-04 17:58:49 | v3nom | Added competition Pixel Stitching |
| 2021-08-04 17:56:38 | v3nom | Added competition Hardware Music |
| 2021-08-04 17:47:30 | v3nom | Added competition Corona Regulations Photo |
| 2021-08-04 17:44:03 | v3nom | Added competition Corona Regulations Music compo |
| 2021-08-04 17:41:23 | v3nom | Added competition Audiobook Demo |
| 2021-08-03 19:42:45 | 100bit | Added link https://csdb.dk/event/?id=3079 |
| 2021-07-13 17:38:25 | RufUsul | Added Scamp as organiser of Underground Conference 2021 |
| 2021-07-13 17:37:52 | RufUsul | Added v3nom as organiser of Underground Conference 2021 |
| 2021-07-13 17:37:35 | RufUsul | Added RufUsul as organiser of Underground Conference 2021 |
| 2021-07-12 19:57:54 | exocet | Added competition Happy Hardcore Music |
| 2021-07-12 19:37:00 | exocet | Added competition Pixel Graphics |
| 2021-07-12 14:07:04 | NR4 | Added NR4 as organiser of Underground Conference 2021 |
| 2021-07-12 06:26:44 | ericorsio | Set releases to none |
| 2021-07-11 23:30:14 | exocet | Added link https://files.scene.org/browse/parties/2021/uc11/ |
| 2021-07-11 20:29:12 | ericorsio | Set releases to Colour Spectrum |
| 2021-07-11 17:48:00 | Saga_Musix | Added competition Shitmusic |
| 2021-07-11 01:22:09 | gasman | Added competition PC Demo |
| 2021-07-11 01:15:49 | gasman | Added competition Combined 4k / 64k |
| 2021-07-11 01:01:54 | gasman | Added competition Demohass |
| 2021-07-10 00:32:02 | TMA | Added competition Combined Oldschool / Real Wild Demo |
| 2021-07-09 13:26:37 | gasman | Deleted competition 'Harddisk Throwing' |
| 2021-07-09 13:26:34 | gasman | Deleted competition '180 BPM Topfschlagen' |
| 2021-07-07 17:37:37 | RufUsul | Added competition 180 BPM Topfschlagen |
| 2021-07-07 17:18:01 | RufUsul | Added competition Harddisk Throwing |
| 2021-03-24 10:45:30 | ericorsio | Added party 'Underground Conference 2021' |