The latest update of Neat Image (v7.6, the latest build available on the website now) should work fine in PS CC 2015. So you may only need to re-download and re-install Neat Image to make it work in PS CC 2015.
NITeam wrote:The latest update of Neat Image (v7.6, the latest build available on the website now) should work fine in PS CC 2015. So you may only need to re-download and re-install Neat Image to make it work in PS CC 2015.
Vlad
Thank you for the suggestion of re-downloading it, it works.