Kaleider 5.7 is not much different than Kaleider 5.6.2, but now the program is entirely free!  Registration Keys are no longer needed.  A few other fixes and improvements are included.  (Also see Kaleider 5.7.1)

Kaleider 5.7.1 

Kaleider 5.7.1 includes an important fix to correct a glitch with saving JPEG images (.jpg files).  The JPEG images were always being saved with the lowest possible Quality of 1 and looked terrible, rather than using the specified JPEG Quality between 1 and 100.  When you install this new version, you might need to initially enter your preferred JPEG Quality value when you first save a JPEG image.  I apologize for the trouble this has caused, and I'm truly embarassed that it took me so long to recognize the problem and fix it.