3 files changed, 10 insertions, 5 deletions
diff --git a/ChangeLog b/ChangeLog
index 96d81fe5e6..c12b5943d9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Oct 29 13:18:02 2008  Akinori MUSHA  <knu@iDaemons.org>
+
+	* README, README.ja: Update the portability section.
+
 Wed Oct 29 13:02:17 2008  Akinori MUSHA  <knu@iDaemons.org>
 
 	* configure.in (rb_cv_lib_xpg4_needed): Drop legacy FreeBSD
diff --git a/README b/README
index b898003937..7e8370ec59 100644
--- a/README
+++ b/README
@@ -16,8 +16,9 @@ Perl).  It is simple, straight-forward, and extensible.
   + Iterators and Closures
   + Garbage Collection
   + Dynamic Loading of Object files(on some architecture)
-  + Highly Portable(works on many UNIX machines, and on DOS,
-    Windows, Mac, BeOS etc.)
+  + Highly Portable (works on many Unix-like/POSIX compatible platforms
+    as well as Windows, Mac OS X, BeOS etc.)
+    cf. http://redmine.ruby-lang.org/wiki/ruby-19/SupportedPlatforms
 
 
 * How to get Ruby
diff --git a/README.ja b/README.ja
index 16dbd9368d..aeb170734d 100644
--- a/README.ja
+++ b/README.ja
@@ -20,9 +20,9 @@ Rubyはテキスト処理関係の能力などに優れ，Perlと同じくらい強力
   + イテレータとクロージャ
   + ガーベージコレクタ
   + ダイナミックローディング (アーキテクチャによる)
-  + 移植性が高い．多くのUNIX上で動くだけでなく，DOSやWindows，
-    Mac，BeOSなどの上でも動く
-
+  + 移植性が高い．多くのUnix-like/POSIX互換プラットフォーム上で
+    動くだけでなく，Windows， Mac OS X，BeOSなどの上でも動く
+    cf. http://redmine.ruby-lang.org/wiki/ruby-19/SupportedPlatformsJa
 
 * 入手法