This email is just to inform you that I performed the following in a MKCL 1.1.8 a few minutes ago:

-------------------------------------------------------

> (asdf:load-system :asdf)

;;; Loading "/home/jean-claude/CL/MKCL/dev/releases/mkcl-1.1/git/mkcl.git/src/test/asdf/asdf.asd"
;;; Loading "/home/jean-claude/CL/MKCL/dev/releases/mkcl-1.1/git/mkcl.git/src/test/asdf/uiop/uiop.asd"
;;; Compiling /home/jean-claude/CL/MKCL/dev/releases/mkcl-1.1/git/mkcl.git/src/test/asdf/build/asdf.lisp.
; Upgrading ASDF from version 3.0.3.0.1 to version 3.1.0.114
;;; Finished compiling /home/jean-claude/CL/MKCL/dev/releases/mkcl-1.1/git/mkcl.git/src/test/asdf/build/asdf.lisp.
;;; Loading "/home/jean-claude/.cache/common-lisp/mkcl-1.1.8-linux-x64/home/jean-claude/CL/MKCL/dev/releases/mkcl-1.1/git/mkcl.git/src/test/asdf/build/asdf.fas"
T
> (asdf::asdf-version)

"3.1.0.114"
> (lisp-implementation-version)

"1.1.8"
>
------------------------------------------------------

And I did not get any error.  No sign of the class instance update bug reported by Faré a little while ago. So since I cannot reproduce it I am a bit at a loss here. Faré, do you have a sure way of triggering that one?