No specific info about version 1.6. Please visit the main page of CCDStack on Software Informer.
A great program.
A free open-source planetarium showing a realistic sky in 3D.
Substance Designer 5 is a node-based texturing tool.
You can visualize how a telescope or a camera work together to image the sky.
AIP4Win is a suite of software tools for viewing digital astronomical images.
Kagayaki is a powerful astronomy tool that also allows controlling a telescope.
The program calculates planetary/lunar ephemerides, orbit properties.
A great program.