What is ps 4 neo?

As an AI language model, I don't have current information if there is a new release for PS4 Neo yet. However, in 2016, rumors suggested that Sony was working on a new version of their PlayStation 4 console, which would be called the PS4 Neo. The PS4 Neo was said to have improved hardware, including an upgraded CPU, GPU, and RAM, which would allow it to deliver better visuals and improved performance compared to the original PS4. However, Sony never officially confirmed the existence of the PS4 Neo. If there would be new releases in the future, I would suggest keeping an eye on official Sony announcements.