Update is free ^_^ and available now in this post: https://boosty.to/luffythefox/posts/7102d639-56cb-4500-b249-55465b7ef1a7?share=post_link

Smart hole detection algorythm. Now ZCleanup fills all holes in your 3D mesh except the biggest one (which is the outer hull of the mesh). My
tool now knows which size each detected hole have in your geometry.
This can be very useful when you create two sided geometry via shell
modifier for 3D printing purposes.

New function is enabled by default in
this version, but you can disable it if you want and fill all holes
instead. Simply open config.txt file from ZCleanupData directory and change parameter hull=1 to hull=0. You can test both ZCleanup plugin modes on provided ZCleanup14-test-dragon.ztl - ZBrush 2022.0.5 ZTL flle.

Flipped normals detection. Now ZCleanup autodetects
flipped faces orientation for highpoly geometry and automatically fixes
it if possible. This can help to solve problems with highpoly geometry
self intersections.