There is a request to add a patch to occt  for a reported issue . Now the question is if applying this patch will result in a binary-compatible build. If not we have to rebuild netgen, smesh, freecad with a new occt (A lot of work) So my question is more general:
Which diff of the source lead to binary incompatible builds and which diff result in a binary compatible build?
 http://git.dev.opencascade.org/gitweb/? ... 636c2cf130