Download Racket 8.1

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Racket is a development language with which other development languages ​​can be developed. In addition, you can simply develop in Racket itself. It was previously known as the PLT Scheme and comes from the Lisp-Scheme family. For the background we refer to the manifesto, written under the direction of Matthias Felleisen. The developers have released version 8.1 of Racket, with the following announcement:

Changes in Racket version 8.1:

  • DrRacket tabs can be dragged, and have new close buttons.
  • Racket CS supports cross-compilation using raco exe.
  • Racket CS supports Android on 32-bit and 64-bit ARM processors.
  • The database library supports running queries in OS threads.
  • Check-Syntax arrows correctly identify the definition site of identifiers with contracts.
  • Racket CS performance has improved for structure predicates and accessors
  • Racket CS is faster at multiplying extremely large numbers and dividing large integers.
  • Racket CS allows callbacks to raise exceptions if they are annotated with #:callback-exns?.
  • New ephemeron hash tables simplify the implementation of tables where keys can refer to values.
  • Typed Racket supports for/foldr.
  • The stepper works for #lang htdp/*sl.
  • Struct signatures work for the ASL teaching language.

Version number 8.1
Release status Final
Operating systems Windows 7, Linux, BSD, macOS, Solaris, UNIX, Windows Server 2008, Windows Server 2012, Windows 8, Windows 10, Windows Server 2016, Windows Server 2019
Website Racket
License type Freeware
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