Old stuff, not necessarily completely obsolete. For instance as of 2021 we have not ported to FloPoCo the floating-point sine/cosine of FPLibrary, and the HOTBM method and SotA LNS operators that were alive in flopoco 2.5 are disabled in the current FloPoCo.
... before it moved to git. These archives sunk with InriaGForge.
Check the real thing