What are the new features in latest version of Photoshop ?

There are a lot of great changes and added a new features in the latest version of Adobe Photoshop CC. As I cannot write here all the famous features so you can check from there:

http://www.adobe.com/products/photoshop/features.html

It will help you alot. 

The latest Adobe Photoshop CC2015 is you can syncrhronize your smartphone on it by continuing your projects done in mobile apps, a tools for your projects to be use in photoshop desktop version, or otherwise the desktop and mobile apps is syncronize.

Adobe photoshop cs7 and cs8 I think is most useful at present 

The latest Adobe Photoshop CC2015