* The fasl file extension may change, perhaps to ".fasl".
* The default output representation for unprintable ASCII characters
which, unlike e.g. #\Newline, don't have names defined in the
ANSI Common Lisp standard, may change to their ASCII symbolic
names: #\Nul, #\Soh, #\Stx, etc.
* INTERNAL-TIME-UNITS-PER-SECOND might increase, e.g. to 1000.
* The fasl file extension may change, perhaps to ".fasl".
* The default output representation for unprintable ASCII characters
which, unlike e.g. #\Newline, don't have names defined in the
ANSI Common Lisp standard, may change to their ASCII symbolic
names: #\Nul, #\Soh, #\Stx, etc.
* INTERNAL-TIME-UNITS-PER-SECOND might increase, e.g. to 1000.