Document the support for ICCCM Extended Segments.

diff --git a/etc/NEWS b/etc/NEWS
index 227a7d036fecc0ef6ab39e3daaa812c085724ffa..2fed65f603a328cce02399e5925dc3f20533c459 100644 (file)
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -32,6 +32,17 @@ Emacs with Leim.
 \f
 * Changes in Emacs 21.3
 
+---
+** Emacs now supports ICCCM Extended Segments in X selections.
+
+Some versions of X, notably XFree86, use Extended Segments to encode
+in X selections characters that belong to character sets which are not
+part of the list of standard charsets supported by the ICCCM spec.
+Examples of such non-standard character sets include ISO 8859-14, ISO
+8859-15, KOI8-R, and BIG5.  The coding system `compound-text'  now
+supports these extensions.  If you don't want this support, set
+`selection-coding-system' to `compound-text-no-extensions'.
+
 +++
 ** The parameters of automatic hscrolling can now be customized.
 The variable `automatic-hscroll-margin' determines how many columns