| 2025-04-30 22:16:00 | ltk_tscc | Added Atari Bit Byter User Club as organiser of ABBUC Software Contest 2019 |
| 2020-09-27 08:50:45 | ltk_tscc | Added competition Software |
| 2020-09-26 14:29:39 | ltk_tscc | Set start date to 5 March 2019, end date to 26 October 2019 |
| 2020-06-10 17:19:06 | ltk_tscc | Added party 'ABBUC Software Contest 2019' |