This is a request to make abipkgdiff support comparing two sets of RPMs, as opposed to just comparing two RPMs. The command line would look like: $ abipkgdiff --set1 <pkg1> <pkg2> <pkg3> --set2 <pkg4> <pkg5> That would make abipkgdiff compare the ABI of the union of packages {pkg1, pkg2, pkg3} against the ABI of the union of packages {pkg4,pkg5}.
The implementation of this feature is currently work in progress. It can be tested by checking out the branch https://sourceware.org/cgit/libabigail/log/?h=users/dodji/PR32476. The command to checkout the code would probably looking like: $ git clone -b users/dodji/PR32476 git://sourceware.org/git/libabigail libabigail/PR32476 The code would be available in the repository libabigail/PR32476.
This has been implemented by patch https://sourceware.org/cgit/libabigail/commit/?id=c3a6893b844b8b0a08f47ce6be927eb682935d8f, applied to the mainline. The feature should be available in Libabigail 2.7.