Lets say I have the repository URL set to "http://ftp.debian.org/debian/" and the distribution is set to "stretch" with component "main".
Are the packages between the time/development from Debian 9.8 to 9.9 changed within this repository, i.e. is it possible if they are altered/updated?
Or do only the packages change in debian-security and are (maybe) moved to "stable" Debian (non security) in next version?
Or something different?
I think, that #1 is the case, but I am not sure. If yes, is there a possibility to get the exact state of packages of a certain Debian Stretch version, e.g. released Debian Stretch 9.8 (or also Debian 9.2) via URL (not by CD-ROM, etc.)?