MLD2P4 is available from the web site
https://github.com/sfilippone/mld2p4-2
where contact points for further information can be also found.
The software is available under a modified BSD license, as specified in Appendix A; please note that some of the optional third party libraries may be licensed under a different and more stringent license, most notably the GPL, and this should be taken into account when treating derived works.
The library defines a version string with the constant
whose current value is 2.1.0.