[plt-dev] Release Announcement for v4.2.4

From: Eli Barzilay (eli at barzilay.org)
Date: Thu Jan 28 15:01:37 EST 2010

On Jan 28, Robby Findler wrote:
> No, Matthias's bullets do not supercede my bullet about 2htdp/image.
> Please restore it.

But the paragraph you had with "Added a porting guide that explains
how to turn `htdp/world' programs into `2htdp/universe' and
`2htdp/image' programs." should be gone, right?

If so, then I have these three bullets now -- inmcluding your revision
to the middle one.  Is this fine?  Is the order between them fine?  (I
did verify the url, it will work after the release is over.)

    * The `2htdp/image' library continues to grow.  In this release, it
      is supported by `2htdp/universe', equality changed to be based
      on how the images are drawn, cropping and curves were added, and
      support for more kinds of pens were added.

    * 2htdp/universe: We have severed the connection between universe
      and an image library and made a few other, minor changes.  Most
      programs will now have to change to require the htdp/image
      library explicitly.  For the full details, see the new Porting
      World Programs section of the documentation:

    * htdp/world: The old world teachpack remains deprecated.  HtDP/2e
      exclusively uses the new 2htdp/universe library.  For backwards
      compatibility, the world teachpack will remain in the distribution
      until the coming summer.

          ((lambda (x) (x x)) (lambda (x) (x x)))          Eli Barzilay:
                    http://barzilay.org/                   Maze is Life!

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