Editing CMU Common Lisp (section)

{{Short description|Free Common Lisp implementation}}
{{Primary sources|date=May 2022}}
{{Infobox software
| name                   = CMUCL
| logo                   =
| screenshot             =
| caption                =
| author                 = [[Carnegie Mellon University]]
| developer              = Various
| released               = Early {{Start date and age|1980}}
| latest_release_version = 21e<ref>{{cite web |url=https://gitlab.common-lisp.net/cmucl/cmucl/wikis/home |title = Home · Wiki · cmucl / cmucl · GitLab}}</ref>
| latest_release_date    = {{Start date and age|2023|05|14}}
| latest_preview_version =
| latest_preview_date    =
| operating_system       = Several [[POSIX]]-compliant OSs
| platform               = [[Cross-platform]]
| language               = [[Common Lisp]]
| genre                  = [[Compiler]] and [[Run-time system|runtime]]
| license                = [[Public domain]]
| website                = {{URL|cmucl.org}}
}}
'''CMUCL''' is a [[free software|free]] [[Common Lisp]] implementation, originally developed at [[Carnegie Mellon University]].

CMUCL runs on most [[Unix-like]] platforms, including [[Linux]] and [[Berkeley Software Distribution|BSD]]; there is an experimental [[Microsoft Windows|Windows]] port as well. [[Steel Bank Common Lisp]] is derived from CMUCL. The [[Scieneer Common Lisp]] was a commercial derivative from CMUCL.