Latest information on Allegro Common Lisp 9.0
Information that was not available at the time Allegro Common
Lisp 9.0 was released is available on this page.
Use our News feeds
to stay informed of new 9.0 developments.
IMPORTANT: remember to check out the
current patches to 9.0.
Mac OS X 10.8 (aka Mountain Lion), during an upgrade from a previous
version of the operating system, removes X11 if it was present at the time
of the upgrade. For most users, this will be detected once you run
the IDE, and you will be directed to download and install
For more information see our
The documentation for
excl:defvar-nonbindable has been corrected.