| 2022-04-14 16:34:54 | menace | Added link https://web.archive.org/web/20180813185300/http://hp.d2.hu:80/ |
| 2022-02-08 17:23:22 | Gargaj | Added HP as organiser of Conference 7007 |
| 2022-02-08 17:20:10 | Gargaj | Added credit for HP on Freestyle 10: Graphics |
| 2021-05-30 06:49:38 | menace | Added HP as a member of Beach Boyz |
| 2020-02-14 04:03:32 | sensenstahl | Updated HP's credit on Cli #2 Intro: Graphics, Music, Code |
| 2020-02-14 04:03:15 | sensenstahl | Added credit for HP on Cli #2 Intro: Code, Music |
| 2019-05-10 21:32:32 | Gargaj | Added link https://twitter.com/peter_hamza |
| 2019-03-14 06:31:52 | menace | Updated HP's credit on CLi #1: Graphics, Music |
| 2019-03-14 06:31:43 | menace | Added credit for HP on CLi #1: Music |
| 2013-12-30 03:35:42 | dipswitch | Added HP as a member of Future Sound of Hajdúböszörmény |
| 2013-12-30 03:33:03 | dipswitch | Added link http://amp.dascene.net/detail.php?view=3398 |
| 2013-12-30 03:31:39 | dipswitch | Added credit for HP on Acid Becomes Reality: Code, Music, Graphics |
| 2013-12-30 03:27:56 | dipswitch | Set location to Hajdúböszörmény, Hajdú-Bihar, Hungary |
| 2013-12-30 03:26:58 | dipswitch | Set real name |
| 2013-12-30 03:25:37 | dipswitch | Set location to Hungary |
| 2012-06-16 21:49:25 | menace | Added HP as a member of MicroPyle |