Are there any ways to revert a part of the model to a previous saved version?
If you stored a morph target you can use the Morph brush.
If you sculpted on a layer you can delete the layer.
If you didn’t do either, you can append the older version to the newer one, hide the rest of the model and use the Project All feature.
Thanks.
I used a fourth way. I stored the morph target from my mesh, imported my old version on the proper subdivision level, switched the morph target back and used the morph brush - similar to the first method, but without the need of a morph target stored before the changes.