Summary for 1.4.0 libpcap release
        Add netfilter/nfqueue interface.
        If we don't have support for IPv6 address resolution, support,
            in filter expressions, what IPv6 stuff we can.
        Checks added for malloc()/realloc()/etc. failures.
        Fix pcap-config to include -lpthread if canusb support is
            present
        Try to fix "pcap_parse not defined" problems when --without-flex
            and --without-bison are used when you have Flex and Bison
        Fix some issues with the pcap_loop man page.
        Fix pcap_getnonblock() and pcap_setnonblock() to fill in the
            supplied error message buffer
        Fix typo that, it appeared, would cause pcap-libdlpi.c not to
            compile (perhaps systems with libdlpi also have BPF and use
            that instead)
        Catch attempts to call pcap_compile() on a non-activated pcap_t
        Fix crash on Linux with CAN-USB support without usbfs
        Fix addition of VLAN tags for Linux cooked captures
        Check for both EOPNOTSUPP and EINVAL after SIOCETHTOOL ioctl, so
            that the driver can report either one if it doesn't support
            SIOCETHTOOL
        Add DLT_INFINIBAND and DLT_SCTP
        Describe "proto XXX" and "protochain XXX" in the pcap-filter man
            page
        Handle either directories, or symlinks to directories, that
            correspond to interfaces in /sys/class/net
        Fix handling of VLAN tag insertion to check, on Linux 3.x
            kernels, for VLAN tag valid flag
        Clean up some man pages
        Support libnl3 as well as libnl1 and libnl2 on Linux

(adam)