diff --git a/CHANGES.txt b/CHANGES.txt
index 4ef0a8f..50051e1 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,9 @@
+* Update to 4.8.0
+
+This is a trivial update (maven, no code changes), but a required one: index version changed.
+
+This version has also been tested for loading index from HDFS of hadoop 2.2.0 running in pseudo distributed mode.
+
 * Update to 4.7.0
 
 Release based on pull request of Petri Kivikangas (https://github.com/DmitryKey/luke/pull/2)
diff --git a/pom.xml b/pom.xml
index 21a4bf3..c9b21e3 100755
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <lucene.version>4.7.0</lucene.version>
+        <lucene.version>4.8.0</lucene.version>
         <ehcache.version>2.6.2</ehcache.version>
         <hadoop.version>0.20.2</hadoop.version>
         <log4j.version>1.2.17</log4j.version>
diff --git a/src/main/java/org/getopt/luke/Luke.java b/src/main/java/org/getopt/luke/Luke.java
index 3adea9a..69afecb 100755
--- a/src/main/java/org/getopt/luke/Luke.java
+++ b/src/main/java/org/getopt/luke/Luke.java
@@ -89,7 +89,7 @@ public class Luke extends Thinlet implements ClipboardOwner {
 
   private static final long serialVersionUID = -470469999079073156L;
   
-  public static Version LV = Version.LUCENE_47;
+  public static Version LV = Version.LUCENE_48;
   
   private Directory dir = null;
   String pName = null;
diff --git a/src/main/resources/xml/about.xml b/src/main/resources/xml/about.xml
index 01272c3..6bdf933 100755
--- a/src/main/resources/xml/about.xml
+++ b/src/main/resources/xml/about.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <dialog modal="true" name="about" columns="1" gap="8" icon="/img/luke.gif" text=" About" left="4" right="4" bottom="4" top="4" close="remove(about)">
-	<label halign="center" valign="center" text="v 4.7.0 (2014-03-10)" font="10" icon="/img/luke-big.gif"/>
+	<label halign="center" valign="center" text="v 4.8.0 (2014-05-10)" font="10" icon="/img/luke-big.gif"/>
 	<button type="link" tooltip="Go to Luke home page" action="goUrl(this)" halign="center" property="url=http://www.getopt.org/luke" foreground="#5aaa88" text="Lucene Index Toolbox" font="18 bold"/>
 	<label halign="center" font="13" text="Created by Andrzej Bialecki &lt;ab@getopt.org&gt;"/>
     <label halign="center" font="13" text="Maintained and further developed by Dmitry Kan &lt;dmitry.lucene@gmail.com&gt;"/>