[malaporte]

Well, I wasn't thinking of specific skills for a given language/framework, but maybe more how those frameworks help you evolve along with the tech landscape.

I started my career around 15 years ago, working on a complex server system written in C++. The important skills back then were all about managing concurrency using mutexes, RW locks, events, and so forth.

Fast forward to now (with lots going on in between), and I find myself working again on server software, but this time the approach is much different: now for dealing with concurrency I'm relying on immutable state, and using Futures or actor systems to coordinate parallel work. It's been years since I've had problems with a deadlock.

Bottom line, it's true that a good programmer doesn't care about language or framework, since he can pick those up pretty fast anyway. But it's a skill that needs practising, and I've seen people neglect this and then regret it later.