CMUCL is supported by a number of mailing lists at cons.org, running under Listar. Please don't send subscribe requests to the list addresses, since they won't be seen by the mailing list software and will only annoy the subscribers. Always use the appropriate -request address.

is a low-volume mailing list, reserved for announcements such as new releases, new ports, important patches or other resources closely related to CMUCL. No discussion should happen on this list. This mailing list will be moderated when necessary.

Send email to <cmucl-announce-request@cons.org> to be added or removed from the list (using a subject of subscribe or unsubscribe and an empty body) and to <cmucl-announce-human-request@cons.org> in case the former doesn't work.

is a mailing list for technical discussion of implementation-specific issues, like ports to new platforms, bug fixes, new features, design of APIs or ports of major third-party packages to CMUCL.

Send email to <cmucl-imp-request@cmucl.cons.org> to be added or removed from the list (using a subject of subscribe or unsubscribe and an empty body) and to <cmucl-imp-human-request@cons.org> in case the former didn't work.

is a mailing list to ask for help in setting up and using CMUCL. Posters should read the CMUCL User's Manual. prior to using this list. Otherwise it is open to every question related to CMUCL. For bug reports, please try out the latest release to see whether your problem has been fixed, and please read this guide on How to Report Bugs Effectively, if you haven't already done so.

Help requests related to rebuilding CMUCL and applying patches may be sent to cmucl-imp also. Problems related to compiler optimization are probably better reported to cmucl-imp, but please make sure your post is about a specific situation with a proper description.

Experienced CMUCL users are encouraged to join this list and help new users.

Send mail to <cmucl-help-request@cmucl.cons.org> to be added or removed from the list (using a subject of subscribe or unsubscribe and an empty body) and to <cmucl-help-human-request@cons.org> in case the former doesn't work.

is a mailing list that receives notifications of commits to the CMUCL git tree. This is intended primarily for developers, but may be of interest to users who wish to follow development. There is also an archive of the commit messages. This archive only has messages starting from Sept, 2010, however.

The cmucl-help and cmucl-imp mailing lists are available over NNTP, through the Gmane mail-to-news gateway, respectively as the groups gmane.lisp.cmucl.general and gmane.lisp.cmucl.devel. Gmane also allows you to search the post-2002 archives of these two lists.

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Commercial support

There is no formal commercial support structure for CMUCL. However, some of the CMUCL developers may be available on an individual basis for consulting, for example to implement new features or help in porting a particular application. Please email the cmucl-imp list with details of your requirements.

Newsgroups

The USENET newsgroup comp.lang.lisp is related to Common Lisp. You may wish to read its current FAQ, or its older FAQ.

Bug Tracking

To report bugs, you may use CMUCL Issues. Due to spam, you will need to get an account to be able to submit bugs. Sorry about that. Alternatively, please feel free to submit bug reports to the mailing lists. However, bug reports won't get lost if you submit them to the issue tracker.