Hello,
APT 4.00 is here with many exciting features. The short list includes automatic focusing and refocusing for DSLR cameras. One more tab in the main screen – Summary Tab which defines a new level of APT usability. The top three are finished with PAPS – Polar Align via Plate Solving, implementation of the popular 3-point polar alignment. PAPS is using mathematical problem solution and code made by Rumen Bogdanovski, who made it for the
INDIGO and AIN Imager projects.
The full list of novelties is available here:
http://www.astrophotography.app/news
Some features of the full version are made available in the demo
Note: APT 3.88 is the last version that works under Windows XP.