I agree. The core fundamental concepts and abstractions are relatively stable (most innovation seems to be happening in the Haskell/FP camp), as well as the programming languages being used. Even the newer widely-used languages (Javascript, Python, etc.) are old by now.
What changes are lot are the actual frameworks and libraries. E.g., while Java is twenty years old now, Hadoop, JAX-RS, Hibernate, etc. did not exist then. And while Java will probably still be in wide use in twenty years, those libraries and frameworks will have been replaced except in legacy code.
I think the only 'platform' that has been stable for ever is UNIX. People are still using libc, POSIX (ok, SUS), etc.
What changes are lot are the actual frameworks and libraries. E.g., while Java is twenty years old now, Hadoop, JAX-RS, Hibernate, etc. did not exist then. And while Java will probably still be in wide use in twenty years, those libraries and frameworks will have been replaced except in legacy code.
I think the only 'platform' that has been stable for ever is UNIX. People are still using libc, POSIX (ok, SUS), etc.