Since then APT is constantly being improved and refined by the real experience of many astro photographers from all over the world including one of the APT authors. It works on MS Windows XP, Vista, 7, 8, 8.1 and 10. Time unlimited "demo" version of this astrophotography software is available in the Downloads page.
Apt Search Command: Search & Find Package Details in Ubuntu May 24, 2020 APT 2.0 released | Blog of Julian Andres Klode Mar 07, 2020
How to Install Specific Version of Package using apt-get
apt-show-versions If installed, shows version information about one or more packages: Passing the -u switch with or without a package name will only show upgradeable packages. How to check the version before install packages using apt-get OK, I found it. apt policy
aptX - Wikipedia
Check Debian/Ubuntu Linux package version using apt-get Oct 03, 2018 APT Software - Thorlabs Jul 14, 2020 APT - Astro Photography Tool