Version 5.7.3 of cwRsync client/server installers come with updated ssh (OpenSSh 7.9p, cygwin and other tools. The server installer offers now a 36-char complex password consisting of upper- and lowercase letters and digits. You need to provide of your own password if that complexity doesn't meet your system requirements.

Version 5.7.2 of cwRsync client/server installers come with an updated cygwin1.dll  (2.10.1 - 20180214), which fixes a newly introduced bug causing files with temporary flag on being not visible for synchronization. See here for more information.

Version 5.7.1 of cwRsync client/server installers contain the latest available Cygwin/GNU tools. OpenSSH binaries are also updated to version 7.7p with LibreSSL 2.7.2.

Version 5.7.0 of cwRsync client/server installers contain Rsync 3.1.3 including some security fixes.

Version 5.6.0 of cwRsync client/server installers is a maintenance release and come with the latest available versions of Cygwin, GNU Tools, OpenSSH and Putty. LibreSSL is now used as the SSL library for OpenSSH binaries.