--- a/ChangeLog	Thu Dec 04 09:27:17 2008 +0100
+++ b/ChangeLog	Thu Dec 04 09:52:30 2008 +0100
@@ -1,3 +1,7 @@
+2008-12-04  Jaroslav Hajek  <highegg@gmail.com>
+
+	* NEWS: Document more new features.
+
 2008-12-03  John W. Eaton  <jwe@octave.org>
 
 	* config.guess, config.sub: Update from FSF sources.

--- a/NEWS	Thu Dec 04 09:27:17 2008 +0100
+++ b/NEWS	Thu Dec 04 09:52:30 2008 +0100
@@ -109,4 +109,17 @@
     The underlying code used for indexing of arrays has been completely
     rewritten and so the indexing of arrays is now significantly faster.
 
+ ** 64-bit integer arithmetic
+    Arithmetic with 64-bit integers (int64 and uint64 types) is fully supported,
+    with saturation semantics like the other integer types. Most of the integer
+    arithmetic operations was rewritten to exploit integer arithmetic in the CPU
+    efficiently. As a result, performance was significantly improved.
+
+ ** Diagonal and permutation matrices
+    The interpreter can now treat diagonal and permutation matrices as special
+    objects, rather than general full matrices. Therefore, it is now possible
+    to construct & use these matrices in linear algebra without suffering a 
+    performance penalty.
+
+
 See NEWS.3 for old news.