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First of all the title is wrong. Everything mentioned in the article is specific to Php. Secondly, interviews are more algorithm/system design specific rather than being asked what are the new features in latest version of a language.

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Depends on the company no ?

For FAANG type places sure, but not everyone runs their interview process with that content.

Anecdata: I interviewed at a bank once and they wanted to know how specific library functions were implemented in a specific programming language.

I completely get that point. I have had that happen to me as well in the past. But since 6 years, whenever I have been to an interview I have never been asked questions so tightly coupled to a language as the article suggests. I have been asked a few questions related to instances where a language doesn't behave as expected. Like `typeof(null)` in js or `1+'1'`. But nothing very very specific. Mostly general questions tend to be more around protocols, design patterns and stuff.

But nothing is for sure. Maybe these questions are still very relevant and it's just that I haven't come across them in interviews recently maybe?

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