In larger repositories with more complex object graphs, findAllReferencePathsToObject: may not return results within a reasonable amount of time, in spite of the improvements in memory requirements in 3.3. There are some sets of conditions under which the implementation of find*References paths cannot scale.
The "findAll" methods have been deprecated in v3.4 and later. findReferencePath* can be used serially to find references.
Last updated: 1/18/19