> Does it though? I mean I'm still teaching thread-safety and recursion to my interns... a solid foundation is a solid foundation.

I think you are confusing interiorizing some fundamentals with things moving fast. There are languages and frameworks rolling out higher level support for features covering concurrency and parallelism. While you focus on thread-safety, a framework you already use can and often does roll out features that outright eliminate those concerns with idiomatic approaches that are far easier to maintain. Wouldn't you classify that as moving fast?

But are you teaching the basics of programming with 30 year old textbooks? Can you learn the principles of web dev by building like they did 30 years ago? Sure. But it will be a pain in the ass vs using something that is up to date.

For the fundamentals, sure, but many of the top sellers are going to be on things like React, Next, etc.

Yes. The autodesk fusion course that I learned 3D printing design off of on Udemy had a bunch of instructions for UI elements that had moved in the application.

It wasn’t a big deal but I would have still appreciated it if the author inserted some new recorded segments or re-recorded some content to make up for it.