therefore the older versions are eliminated from the public sphere to be replaced by newer information and methods of combating it and its mutations.

The information isn’t being retracted as if from some miss statement or some miss announcement to a reporter. It’s the process of science.
Example, the rockets used to launch the Apollo project are not the same as rockets used today - they have been modified, as science learns different and better ways to send astronauts into space.

You really try too hard to bad mouth anything and anyone who isn’t hard right extremist MAGAcult.