Paint.NET  3.5.5 Beta 1
- Fixed the bug where saving as 8-bit PNG/GIF/BMP wasn’t always working. This often happened when “Auto” bit-depth was selected, and based on the color complexity of the image it would choose 8-bit (for a smaller file-size) and then fail with “error”. Usually this only happened with larger images.
- Improved performance of Gaussian Blur by 30-40% depending on your CPU (Intel Core i7 seems to show the best improvement).
- Improved performance of all the layer blend modes by 15-30%, depending on your CPU (Intel Atom seems to show the best improvement).
- Improved performance of zooming with the mouse wheel on dual-core Intel Atom systems.