Freecell Solver version 2.22.0 is now available for download from the download page. This release converts from Public Domain "licensing" which is problematic for source code to the more explicit and less controversial MIT/X11 License. (Some source files that had been originated by other parties are still under the public domain).
Also in this release is some fixes to the build system (in part thanks to a contribution by Risko Gergely), including the ability to prepare a static library.
Happy solving, and enjoy April Fool's Day Tomorrow.