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Wednesday 21 March 2018 at 19:05
Quoted from Ferret:The reason for the can’t-update-Pre-1.0 prohibition is that some game hardware changed between early games and production, and the post 1.0 software doesn’t drive the old hardware correctly. So work with Helmut at Heighway to get the required production hardware for the game, ...
Source: http://pinside.com/pinball/forum/topic/heighway-pinball-support-full-throttle-and-alien/page/6#post-4292708