Are we all classical liberals now?

Many in the IDW call themselves classical liberals. What is classical liberalism? Has it changed in character over the years? What political positions are best represented by it? Are we that listen to the IDW all classical liberals? Is that our dogma or bias?

Resources
Dave Rubin -
https://www.youtube.com/watch?v=Bsba-dNApvw

Sargon of Akkad -
https://www.youtube.com/watch?v=mptrxcBNY7s
https://www.youtube.com/watch?v=SIW-B7qVrMk

The Roots
On Liberty - https://eet.pixel-online.org/files/etranslation/original/Mill,%20On%20Liberty.pdf