Hi Cygnalers, There is a new Cygnal beta, version 3.1.6.98. This is based on the 3.1.7 baseline of Cygwin, plus a few commits cherry-picked from upstream to get 3.1.7 to build under current Cygwin (mostly due to GCC 10 diagnostics). See here for the links to the pre-built DLL binaries and git branch: http://www.kylheku.com/cygnal/#3-6-1-98 I have made some improvements to the web page. The git repository now has all the upstream tags also. Cheers ...