>> you can't introduce newer patterns without breaking compatibility. Yeah it is tricky, but Java has a good track record here: In 1.2 they added all-new Coll

>> you can't introduce newer patterns without breaking compatibility. Yeah it is tricky, but Java has a good track record here: In 1.2 they added all-new Collections API. The old API is still there and still works, though it is not used much these days. Then in 5 or thereabouts Collections API got generics. Then in 8 or so, Collections API got streams, magical multithreading etc etc. Lambdas were added to the language and standard libraries, and so on.