GYST INK August 17, 2014 Software, GYSTPro, Product, GYST News GYSTPro 4.0 Coming Soon! GYST INK August 17, 2014 Software, GYSTPro, Product, GYST News We are working on the GYSTPro 4.0 upgrade, which may be the last large upgrade we do until the cloud version gets finished.