*** Gnus is now a MIME-capable reader. This affects many parts of
Gnus, and adds a slew of new commands. See the manual for details.
-Separate MIME packages like RMIME, SEMI, mime-compose etc., will
-probably no longer work; remove them and use the native facilities.
+Separate MIME packages like RMIME, mime-compose etc., will probably no
+longer work; remove them and use the native facilities.
+
+FLIM/SEMI package still works with Emacs 21. But, if you want to use
+the native facilities, you must remove mailcap.el[c] that was
+installed by FLIM/SEMI of version 1.13 or the earlier.
*** Gnus has also been multilingualized. This also affects too many
parts of Gnus to summarize here, and adds many new variables. There