The only thing about Common Lisp that bugs me is that it seems increasingly unlikely that we'll see an updated spec. It kind of sucks for anyone who wants to cr

The only thing about Common Lisp that bugs me is that it seems increasingly unlikely that we'll see an updated spec. It kind of sucks for anyone who wants to create a new CL implementation because of all of the anachronisms in the ANSI spec. Additionally, new things like concurrency end up getting done a bunch of different ways between implementations which kind of screws up code portability.