Support Drracket Programming Environment

Racket is a programming language that works from scripting to graphical user interfaces, Web servers, and so on. Supports the Drracket programming environment, the same time compiler's virtual machine, creates the independent executable program the tool, the Racket Web server, the extensive library, also applies to the beginner and the expert. By creating a large number of grammar systems to support the new programming language, languages include typed Scheme,acl2, Frtime, Lazy Scheme, and Professorj.

Racket 5.1.2 Version update log:

-this version works on 64-bit Mac OS X and Windows 7.
-it recursively new installers, ' racket/place ' for share-nothing parallelism.
-syntax-certificates were replaced by syntax-taints.
-' Net/url ' now supports HTTPS 50x15.
-error messages in student languages were simplified.
-typed Racket now covers almost all of the core language, and type checker configured is improved-' Scriblib/bibtex ' supports bibtex-formatted citation databases.
-' for ' Forms now support ' #:unless ', a new ' compose1 ' function, and the new functions in ' racket/function '.
-the license was clarified:lgplv2.1.

Download Address: http://racket-lang.org/download/