[plt-scheme] scribblings on PLT Scheme 4.0

From: Sridhar Ratna (sridhar.ratna at gmail.com)
Date: Wed May 23 23:43:52 EDT 2007

On 5/24/07, Matthew Flatt <mflatt at cs.utah.edu> wrote:
> At the language level, we are considering a few changes for version
> 4.0. The most significant are:
>  * Pairs will become immutable by default. This is the big change that
>    will break backward compatibility. We can provide a compatibility
>    `mzscheme' library, but we can't do that for all the libraries whose
>    public interface mentions lists.

Does this mean that standard procedures like `set-car!' and `set-cdr!'
will be deprecated?


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