Quoted from RetroGamerJP:This is not an official communication from Stern. Based on the number, it looks like it's from Flip N Out Pinball ... I believe someone posted a ramp failure with .91 so we don't want to give false confidence in that version until we know for sure whats going on.
Doomid posted on the V0.92 code is out thread that v.91 killed his 9d board.