Edit history for Upgrade by Jammer

2022-01-22 09:34:41 menace Added link https://ftp.modland.com/pub/modules/PlaySID/Jammer/upgrade.psid
2022-01-22 09:34:06 menace Added link https://csdb.dk/sid/?id=59004
2022-01-22 09:34:00 menace Set release date to 1 June 2021, platform to Commodore 64
2022-01-22 09:33:32 menace Added tag 'goattracker'