Robin Whalley has a good video showing the major changes in NIK Collection 4--to Silver Efex Pro 3 and Viveza 3. ttps://www.youtube.com/watch?v=JfItpnWslSk For those who access NIK thru Photoshop, Meta-presets have been added. See video about 13:20. For those who access thru Lightroom, Smart Copt and Paste has been added. See video around 14:00.