The ability to pass a numeric argument to gensym has been deprecated.
The :test-not argument to the functions in Figure 1–3 are deprecated.
| adjoin | nset-difference | search |
| assoc | nset-exclusive-or | set-difference |
| count | nsublis | set-exclusive-or |
| delete | nsubst | sublis |
| delete-duplicates | nsubstitute | subsetp |
| find | nunion | subst |
| intersection | position | substitute |
| member | rassoc | tree-equal |
| mismatch | remove | union |
| nintersection | remove-duplicates |
The use of the situation names compile, load, and eval in eval-when is deprecated.