Here are some details:
Short description:
XBoard is a graphical user interface for chess in all its major forms,
including international chess, xiangqi (Chinese chess), shogi Japanese
chess) and Makruk. Many variations of chess are also supported.
Web page:
http://www.gnu.org/software/xboard/
Download at:
http://ftp.gnu.org/gnu/xboard/
Windows binaries will be available at:
http://www.open-aurec.com/wbforum/viewforum.php?f=19
Development at:
https://savannah.gnu.org/projects/xboard/
News:
Mostly bugfixes, support of Makruk.
See the NEWS file in the distribution or git for more details.
regards
Arun