Giant Spawn: v5.2 -> v5.3
Mooshroom Tweaks: v3.5 -> v3.6
Skeleton Horse Spawn: v4.0 -> v4.1
Zombie Horse Spawn: v5.1 -> v5.2

The complete changelog with previous versions can be found at:
  https://serilum.com/mods?changelog=serilums-spawn-bundle