Did they ever share any of their algorithms created in-house? (They claim many are.) If they share the method, why can't they share the code? They do have some

Did they ever share any of their algorithms created in-house? (They claim many are.) If they share the method, why can't they share the code? They do have some notes on internal implementation, that do not seem up-to-date, here [0]. Were they any more detailed than this? [0] http://reference.wolfram.com/language/tutorial/SomeNotesOnInternalImplementation.html http://reference.wolfram.com/language/tutorial/SomeNotesOnIn...