Paint.NET v3.5.3 - released February 7, 2010.

One of the best freeware image editors around, imho. I'm impressed by the activity of the development. The previous release was in January. While GIMP is usually thought of as a Photoshop replacement, Paint.NET comes close to the others without the steep learning curve. As a long-time user of Photoshop, I feel it's a good option for those looking for a free solution.

Download Link [added by Admin]

Code:
http://www.getpaint.net/download.html