[plt-dev] Release Announcement for v4.2.5

From: Stevie Strickland (sstrickl at ccs.neu.edu)
Date: Thu Apr 1 14:36:50 EDT 2010

On Apr 1, 2010, at 4:56 AM, Eli Barzilay wrote:
> * Stevie:
>  - class contracts?

The `scheme/class' library now provides contract combinators for classes (`class/c') and objects (`object/c').  See the Reference and Guide for details.  Also, a backwards-compatible `object-contract' version of `object/c' has replaced the old `object-contract' combinator.

Posted on the dev mailing list.