This release updates to IB API 9.66, adds IPv6 support, adds the new build target "make rpm", adds minor build chain fixes and cleanups, fixes "connection refused" being noticed too late, fixes win32 still using blocking sockets, drops support of systems without getaddrinfo(), makes eConnect() try to connect to all possible IPs of a given hostname before giving up, adds IPv6 support (still not used by default), adds the new function eConnect2() to specify the wanted address family, and obsoletes libtwsapi.pc (use twsapi.pc instead).
