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Re:A Haskell Programmer Tries to Learn Racket by TheLoneWolfling on Wednesday April 16, 2014 @11:47AM (#7598482)
Not necessarily.

Java 6 and 7 are "almost completely compatible".

Most programs written in Java 6 will run in Java 7, and vice versa. But not all.

Re:A Haskell Programmer Tries to Learn Racket by chc on Wednesday April 16, 2014 @01:35PM (#7599201)
C++ is similar with regards to C code. They're compatible enough that a lot of people will write "C/C++", but they're still incompatible enough that you'll get yelled at by a lot of people if you write "C/C++".