-- | Compare instances by their version numbers.
preferLatestOrdering :: I -> I -> Ordering
preferLatestOrdering (I v1 _) (I v2 _) = compare v1 v2
preferLatestOrdering :: I -> I -> Ordering
preferLatestOrdering (I v1 _) (I v2 _) = compare v1 v2
preferLatestOrdering (I v1 _) (I v2 _) = compare v1 v2