Versions: 0.9 - 0.94:
- early versions, no features tracking was done for them.

Version 0.95:
- added two high-quality rescaling algorithms and added support for png file format and partial (reading only) support for gif files.

Version 0.96: 
- improved rescaling algorithms, added Mirror/Rotate options and implemented animation support in full screen mode.

Version 0.97: 
- added ability of selecting part of an image and copying it to the clipboard (use Control key to activate edit mode or ScrollLock key to toggle).

Version 0.98:
- improved Lanczos scaling algorithm from lanczos3 with 5x5 oversampling to lanczos4 with 5x5 oversampling (lanczos8 was unfortunately too slow).

Version 0.99
Added many new features, improved some old ones:
- added posibility to paste layers
- added posibility to rotate the image at any angle
- added possibility to move(shift) an image
- added option to add frames to image
- added option to enlarge image
- added "Color To Transparency" option
- added possibility to change the speed of the animation
- added NeuQuant color reducing algoritthm when reducing to 256 colors
- improved "step by step" color reducing routine by making it much faster.

Version 1.0
- added brigtness/contrast/gamma correction options
- improved an option to enlarge images
- added option for making shadows
- added "Transparent Fill" option (an advanced algorithm of filling images)
- added an option to stretch color histogram of an image
- added large number of filters (sharpening ,softening/blur, and statistical filters)
- added support for reading 16 bit colordepth bitmaps
- added support for Windows Vista

Version 1.01
- improved zooming and rescaling algorithms
- added saving support for gif and jpg files
- added "Color Filter" option