[Boost-users] [serialization] backwards compatibility of vector (de)s11n

Hi list, I am migrating from Boost v1.35 to a new version. I have, however, some legacy serialized strings that I want to be readable by the new version. After some testing I found that apparently the newer version (in this case 1.40) cannot correctly deserialize std::vector instances from 1.35 generated strings. Can anyone give my a pointer as to what may be the problem here? Thanks a lot! Ewald ==Details== I use text archives, and gcc version 4.4.1 (Ubuntu 4.4.1-4ubuntu9) The test vector is a structure with 2 items, the long integers 1 and 2. Archive string for respective lib versions: 1.35 archive: 22 serialization::archive 4 2 1 2 1.40 archive: 22 serialization::archive 5 2 0 1 2 Now: ---------(code snippet) // includes #include #include #include std::vector<long> testvector; std::string val = "22 serialization::archive 4 2 1 2"; // v1.35 archive { std::stringstream ss(std::stringstream::in | std::stringstream::out); ss << val << std::endl; boost::archive::text_iarchive ia(ss); ia >> BOOST_SERIALIZATION_NVP(testvector); } -------- Result when executing with lib v1.40: testvector contains two elements, {2, 2} -- instead of {1, 2} Note: s11n and de-s11n with the same lib version works perfect.