If your application is using the givesocket() and takesocket() APIs to pass ownership of a socket from one program to another, some changes are necessary for IPv6 enablement. The givesocket() and takesocket() APIs now support an address family of AF_INET6 for the socket being given or taken. The address family specified by the program performing the takesocket() must match the address family specified by the program that performed the givesocket(). As a result, care should be taken in coordinating the updates for IPv6 support across the partner applications performing givesocket and takesocket processing.