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PLT Scheme
 
PLT Scheme is now Racket
See the Racket site for up-to-date information, because PLT Scheme is now Racket. (Why?) This page is for compatiblity and historical reference only.
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Download PLT Scheme


These downloads are for outdated versions, which are no longer maintained.
For current and newer versions, please go to the web site for Racket.
Version: 4.2.1 Other Versions
Platform:  
 

Software License  •  Download Pre-Release Software

System Requirements: Windows (95 and up), Mac OS X (10.3 and up), or Unix running the X Window System. The latest version of DrScheme is useful with at least 256MB of RAM in your computer, and installing requires roughly 60MB of disk space.