@piotrgregor If these changes were go to into libstirshaken and then Kamailio fully outsources that work to the library, Kamailio would need to enforce a minimum version of libstirshaken be installed to know that it will work. I don't believe the library has versioning at the moment. Ideas on how to solve that for users who are using a newer Kamailio with a yet-to-be-patched libstirshaken?