Star Trek fans have become very sensitive to introductions of new characters, aliens or historic events arguing that things that haven’t previously been mentioned ‘break canon’ or disrespect lore.
This piece by Inverse shows how profoundly TNG retconned Federation, Starfleet, and main characters’ history on the fly.
Worth thinking about.
Almost everything TNG retconned from TOS were positive things, like getting rid of the sexist uniforms for women, so if you’re upset about what changed between TOS and TNG, you might just be an asshole.
Well, I can see your point.
I also was always supportive of WW III being pushed back by a half century.
But you can’t argue that there haven’t been major retcons.