Hi, >Symbols files are usually better since you get more fine grained >control of dependencies, but they take a lot more time to maintain >(especially for C++ libraries). In this very specific case, I think we don't need it, as I explained here [1] and you can see how upstream is taking seriously the ABI now [2] cheers, G. [1] https://bugs.launchpad.net/ubuntu/+source/libjsoncpp/+bug/1461517 [2] http://upstream.rosalinux.ru/versions/jsoncpp.html