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These downloads are for outdated versions, which are no longer maintained.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: 209 Other Versions
v209 Software Patches

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.