There's nothing vintage about them. Understanding these is crucial to understand how and why modern concurrency tools work. As I noted above in another comment,

There's nothing vintage about them. Understanding these is crucial to understand how and why modern concurrency tools work. As I noted above in another comment, the issues that need mutexes or semaphores have never went away, only you might not realize that they're there. And please, don't come up with async/await, callback/continuation, node.js' async stuff. They are not a replacement for mutual exclusion, etc.