[racket-dev] Release Announcement for v5.1.2, second round

From: Robby Findler (robby at eecs.northwestern.edu)
Date: Mon Aug 1 16:15:23 EDT 2011

No, not mine. (the bibtex lib sounds worth including to me)

On Monday, August 1, 2011, Eli Barzilay <eli at barzilay.org> wrote:
> The release announcement sketch that I have so far is below.  Please
> mail me new items and/or edits.
> Robby and Jay -- two pending items:
> ? New racket/contract/combinator library and some contract module
>  reorganization (this is in 21cbd9ad)
> ? New `scriblib/bibtex' that can read bibliographic databases in
>  bibtex format.
> ----------------------------------------------------------------------
> * The download page includes 64-bit installers for Windows, Mac OS
>  X, and two Debian flavors.
> * Racket now includes a new `racket/place' library to support
>  parallelism, complementing `racket/future'.  Racket's parallel
>  build process is now based on places instead of multiple OS
>  processes.
>  Places support share-nothing parallelism and message-passing
>  communication.  Compared to futures, places are heavyweight, but
>  they have a simpler performance model.
> * The syntax-certificate system has been replaced by a syntax-taint
>  system.  Both certificates and taints were designed to protect
>  otherwise inaccessible bindings from abuse when they appear in
>  macro expansions.  Taints are simpler and lighter, and the switch
>  closes known holes in the certificate system.  Macros that are not
>  implemented with `syntax-rules' or `define-syntax-rule', however,
>  must explicitly use `syntax-protect' to protect their expansions
>  from abuse.
> * The `net/url' library supports HTTPS connections, but beware that
>  by default all sites are accepted (equivalent to ignoring a
>  browser's warnings about untrusted certificates).
> * The `for' forms now support an `#:unless' clause, and a
>  nonnegative integer can be used as a sequence.  The new `compose1'
>  function creates single-valued composition functions.  The
>  `racket/function' library now provides `identity', `thunk', and
>  `thunk*'.
> * Error messages in the student languages use a smaller vocabulary
>  and consistent phrasings.  If you maintain curriculum material or
>  teachpacks then please consider updating.  See the "Error Message
>  Composition Guidelines" section in the documentation for details.
> * Typed Racket: almost all core Racket data structures and
>  operations are now accessible in Typed Racket (most of this work
>  is due to prolific contributor Eric Dobson).  The performance of
>  the typechecker has been significantly improved.
> * The license has been clarified: we now use LGPLv2.1 uniformly.
>  (The license file used to specify LGPLv2, contrary to the download
>  pages.)
> ----------------------------------------------------------------------
> --
>          ((lambda (x) (x x)) (lambda (x) (x x)))          Eli Barzilay:
>                    http://barzilay.org/                   Maze is Life!
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