title: c++ programming reference (Stroustrup) - differences between 3rd and 4th edition
body: <p>I want to improve my C++ knowledge and I've been thinking of buying "The C++ Programming Reference (Stroustrup)".</p>
  
  <p>I don't expect I will be writing a huge amount of C++ code, and will probably only write C++ 11 when I do.  I can pick up a copy of the 3rd edition of the book much cheaper than the 4th edition.  I'm thinking of buying the 3rd edition now, and buying the 4th edition some point in the future.  </p>
  
  <p>How much has changed in C++ 11 - is reading the 3rd edition before the 4th going to be a waste of time?</p>
  
  <p>Can answers please try to include a quantitative appraisal of the differences between in the C++ versions represented by the 3rd and 4th edition from a C++ newbies perspective?</p>