Download

Stable version (1.6.3 - March 24, 2015)

Windows

1.6.3: 64-bit, 32-bit

Mac OS X

SynergyKM Recommended Instead (download) (but if you want the official Mac client anyways: 1.6.3: 10.10, 10.9, 10.8, 10.7, 10.6, 10.5)

Debian & Ubuntu Linux

1.6.3: 64-bit, 32-bit

Red Hat & Fedora Linux

1.6.3: 64-bit, 32-bit

Source code

1.6.3: tar.gz