Add news about SEMI 1.5.

diff --git a/NEWS b/NEWS
index 460a94f..8e7ba4a 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,42 @@
 SEMI NEWS --- history of major-changes.
 Copyright (C) 1998 Free Software Foundation, Inc.
 
+* Changes in SEMI 1.5
+
+** text presentation
+
+  Change text presentation mechanism.  In anything older than SEMI
+1.4, text presentation mechanism is based on filter model.  However it
+has design problem about conversion between byte representation and
+text presentation.  So SEMI was changed to use
+body-presentation-method to display text entity.  In this purpose, old
+text decoding features were abolished and introduces news features
+(cf. next section).
+
+** mime-raw-representation-type and mime-raw-representation-type-alist
+
+  Abolish `mime-text-decoder' and `mime-text-decoder-alist' because of
+text presentation mechanism change (cf. previous section).  Instead of
+it, SEMI introduces variable about representation-type of
+mime-raw-buffer.  If it is `binary', mime-raw-buffer is as same as
+network representation.  If it is `cooked', mime-raw-buffer is
+code-converted.
+
+  `mime-raw-representation-type-alist' is an alist of major-mode
+vs. representation-type.  Each element looks like
+
+    (SYMBOL . REPRESENTATION-TYPE).
+
+SYMBOL is major-mode or t.  t means default.
+
+  `mime-raw-representation-type' is a buffer local variable of
+mime-raw-buffer.  If it is non-nil, it overrides
+`mime-raw-representation-type-alist'.
+
+  In addition, `mime-raw-buffer-coding-system-alist' was abolished.
+Because representation-type has enough information.
+
+\f
 * Changes in SEMI 1.4
 
 ** mailcap