I've discovered a small bug in beta 10 where Accurate Rip checksums are incorrectly calculated for the last track on a disc if the 5th frame from the end of the track is not silent. This miscalculation will never give false positives, but the track could erroneously not be marked as accurate.
Beta 11 will be released shortly with the fix. I didn't discover this in testing because apparently very few discs contain audio in the last 5 frames before the lead-out.