option is deprecated. date and ls also have new time format
specifiers %:z, %::z, %:::z.
cp and mv: the --reply=X option is deprecated
+ date accepts the new option --rfc-3339=TIMESPEC. The old --iso-8602 (-I)
+ option is deprecated; it still works, but new applications should avoid it.
+ date and ls's time formats now support new %:z, %::z, %:::z specifiers
+ for numeric time zone offsets like -07:00, -07:00:00, and -07.
+
dd has new iflag= and oflag= flags "binary" and "text", which have an
effect only on nonstandard platforms that distinguish text from binary I/O.