Is C++ Primer fifth edition now obsolete?

Hello, google couldn't answer so now I'm here. I didn't buy my class textbook and instead am using C++ Primer, however I just noticed it's teaching C++11, should I pay and get the newest version?

I'm not in the best financial situation, but my grades and education are far more important for me.

Thank you.
C++11 is still relevant. Not all compilers implement the very latest features anyway. If you can't afford the latest edition you don't have to get it. Once you have a solid foundation you can pick up the new features later on.
> Is C++ Primer fifth edition now obsolete?

No, it is still a good book to start learning C++ with.

Most of the significant additions to the language are in the standard library; and you wouldn't be needing those initially. In any case, as yet, there is no text book that covers C++17 (AFAIK) and there is no compiler vendor who provides a complete C++17 implementation.

cppreference.com http://en.cppreference.com/w/cpp has an up to date C++ reference; if required, use it to supplement what's in the book.
Thank you both!
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