Maintenance release with bug fixes and few features added - see CHANGELOG.txt for description.
Download Windows installer: http://neutron.ujf.cas.cz/restrax/download/simres-6.5.3-win32-x86_64.zip
Download Linux binary package: http://neutron.ujf.cas.cz/restrax/download/simres-6.5.3-linux-x86_64.tar.gz