diff --git a/NOTICE b/NOTICE
index 603c630..85b32c0 100644
--- a/NOTICE
+++ b/NOTICE
@@ -1,5 +1,5 @@
 PDF image support for Apache FOP
-Copyright 2012-2017 The Apache Software Foundation
+Copyright 2012-2018 The Apache Software Foundation
 Copyright 2007-2012 Jeremias Maerki and contributors.
 
 This product includes software developed at
diff --git a/README b/README
index a0c0c8e..559ea42 100644
--- a/README
+++ b/README
@@ -76,11 +76,11 @@
 
 This plug-in has the following requirements:
 - Apache PDFBox 2.0 or later
-- Apache XML Graphics Commons 2.2 or later (for the image converter)
-- Apache XML FOP 2.2 or later (for the FOP functionality)
+- Apache XML Graphics Commons 2.3 or later (for the image converter)
+- Apache XML FOP 2.3 or later (for the FOP functionality)
 - Java 1.6 or later
 
-Note: for some problems related to the PDF plug-in, Apache FOP 2.2 or later
+Note: for some problems related to the PDF plug-in, Apache FOP 2.3 or later
 is required. A number of bugs had to be fixed in FOP's PDF library.
 
 
@@ -156,6 +156,22 @@
   RELEASE NOTES
 ==============================================================================
 
+Version 2.3
+=========================
+
+Changes:
+FOP-2251: PDF to Postscript not showing transparency
+FOP-2715: Optimise PDFWriter writing out floats
+FOP-2719: PDF to PS NPE when encode param not set
+FOP-2720: PDF to PCL exception on clipping
+FOP-2723: PDF to PDF deduplicate more types of streams
+FOP-2739: Upgrade to PDFBox 2.0.7
+FOP-2739: Avoid rastering PDF with Smask to image
+FOP-2746: PDF to PDF NPE during structuretree merge
+FOP-2750: Use streams for OTF subsetting
+FOP-2753: PDF to PS allow fop fonts as fallback
+FOP-2754: Error when merging True Type font with CFF PDF font
+
 Version 2.2
 =========================
 
diff --git a/build.properties b/build.properties
index df67a32..a2e243d 100644
--- a/build.properties
+++ b/build.properties
@@ -1,6 +1,6 @@
 version=2.3.0.SNAPSHOT
 vendor=The Apache Software Foundation (http://xmlgraphics.apache.org)
-year=2007-2017
+year=2007-2018
 
 javac.debug=on
 javac.deprecation=on
diff --git a/build.xml b/build.xml
index 4f63273..2c8b796 100644
--- a/build.xml
+++ b/build.xml
@@ -347,28 +347,28 @@
     <input message="Passphrase for your default private key" addproperty="pwd">
       <handler classname="org.apache.tools.ant.input.SecureInputHandler" />
     </input>
-    <antcall target="sha256">
+    <antcall target="sha512">
       <param name="sign.archive" value="${name}-${version}-src.zip"/>
     </antcall>
     <antcall target="sign-file">
       <param name="sign.archive" value="${name}-${version}-src.zip"/>
       <param name="pwd" value="${pwd}"/>
     </antcall>
-    <antcall target="sha256">
+    <antcall target="sha512">
       <param name="sign.archive" value="${name}-${version}-src.tar.gz"/>
     </antcall>
     <antcall target="sign-file">
       <param name="sign.archive" value="${name}-${version}-src.tar.gz"/>
       <param name="pwd" value="${pwd}"/>
     </antcall>
-    <antcall target="sha256">
+    <antcall target="sha512">
       <param name="sign.archive" value="${name}-${version}-${bin.suffix}.zip"/>
     </antcall>
     <antcall target="sign-file">
       <param name="sign.archive" value="${name}-${version}-${bin.suffix}.zip"/>
       <param name="pwd" value="${pwd}"/>
     </antcall>
-    <antcall target="sha256">
+    <antcall target="sha512">
       <param name="sign.archive" value="${name}-${version}-${bin.suffix}.tar.gz"/>
     </antcall>
     <antcall target="sign-file">
@@ -377,11 +377,11 @@
     </antcall>
   </target>
 
-  <target name="sha256">
-    <property name="sha256sum.exec" value="sha256sum"/>
-    <property name="sha256sum.options" value=""/>
-    <exec executable="${sha256sum.exec}" output="${sign.archive}.sha256">
-      <arg line="${sha256sum.options} ${sign.archive}"/>
+  <target name="sha512">
+    <property name="sha512sum.exec" value="sha512sum"/>
+    <property name="sha512sum.options" value=""/>
+    <exec executable="${sha512sum.exec}" output="${sign.archive}.sha512">
+      <arg line="${sha512sum.options} ${sign.archive}"/>
     </exec>
   </target>
 
@@ -484,7 +484,7 @@
       <include name="maven/pom.xml"/>
       </patternset>
     </fileset>
-    <checksum algorithm="sha-256" fileext=".sha256">
+    <checksum algorithm="sha-512" fileext=".sha512">
       <fileset refid="bundle-files"/>
     </checksum>
     <input message="Passphrase for your default private key (attention: passphrase will be echoed in clear text on the display!)" addproperty="pwd"/>