Comment 3 for bug 1823442

ASDF can easily be updated on top of the one provided by SBCL. So if you want to use a new version you don't have to wait for SBCL.

SBCL has always been a tad conservative at updating ASDF, but now that ASDF inserts new deprecations and warnings I'm even less eager to update. (And I'm still bitter for having been banned on the asdf mailing lists for speaking out against these changes.)