See here for a description of what else changed recently and how to continue playing your current campaign with older mods.
Changelog for 1.5.1.6
- Fixed Ancient Spire revealing locations outside the intended radius.
- Fixed Flesh Cradles and Mortars being attackable.
- Fixed the 'Castigate' skill not ignoring shield defense bonuses as intended.
- Fixed Anatomist potions for the new locations not dropping as intended.
- Fixed Necromancers not being able to resurrect skeletons.
- Fixed minor issue with certain armor sprites not rendering correctly on slain units.