diff --git a/icu4j/readme.html b/icu4j/readme.html
index 01efd088dd..2f683fbdce 100644
--- a/icu4j/readme.html
+++ b/icu4j/readme.html
@@ -273,22 +273,22 @@ are unsupported and untested, and you use the components on these JVMs
 at your own risk.</p>
 <p> The reference platforms which we support and test ICU4J on are:</p>
 <ul>
-  <li> WinXP, IBM JDK 1.4.1</li>
-  <li> Solaris 2.7, Sun JDK 1.4.2</li>
-  <li> AIX 5.2, IBM JDK 1.4.1</li>
+  <li> WinXP, IBM JDK 1.4.2</li>
+  <li> Solaris 5.9, Sun JDK 1.5.0</li>
+  <li> AIX 5.2, IBM JDK 1.4.2</li>
 </ul>
 <p>Please use the most recent updates of the supported JDK versions.</p>
 <p>Additionally, we have built and tested ICU4J on the following <b>unsupported</b>
 platforms:
 </p>
 <ul>
-<li> Win98, WinNT, Win2K / IBM JDK 1.4.1, Sun JDK  1.4, 1.4.1, 1.4.2</li>
-<li> WinXP / Sun JDK 1.4, 1.4.1, 1.4.2, 1.5.0</li>
-<li> Solaris 2.6 , Solaris 2.8 / Sun JDK 1.4, 1.4.1, 1.4.2</li>
-<li> Solaris 2.7 / Sun JDK 1.4, 1.4.1</li>
-<li> AIX 5.1, IBM JDK 1.4.1, 1.4.0</li>
-<li> RedHat Linux 7.1/  IBM JDK 1.4.1, 1.4.0, Sun JDK 1.4, 1.4.1, 1.4.2</li>
-<li> RedHat Linux 7.2/  IBM JDK 1.4.1, 1.4.0, Sun JDK 1.4, 1.4.1, 1.4.2</li>
+<li> Win2K / IBM JDK 1.4.1, Sun JDK  1.4, 1.4.1, 1.4.2</li>
+<li> WinXP / IBM JDK 1.4.1, Sun JDK 1.4.2, 1.5.0</li>
+<li> Solaris 5.6 , Solaris 5.7 / Sun JDK 1.4, 1.4.1, 1.4.2</li>
+<li> Solaris 5.9 / Sun JDK 1.4, 1.4.1, 1.4.2</li>
+<li> AIX 5.1, AIX 5.2 / IBM JDK 1.4.1</li>
+<li> RedHat Enterprise Linux 3/  IBM JDK 1.4.1, 1.4.0, Sun JDK 1.4, 1.4.1, 1.4.2, 1.5.0</li>
+<li> RedHat Linux 7.2/  IBM JDK 1.4.1, 1.4.0, Sun JDK 1.4, 1.4.1, 1.4.2, 1.5.0</li>
 </ul>
 <h3 class="doc"><a name="obtaining"></a>How to Download ICU4J</h3>
 <p>There are two ways to download the ICU4J releases.