diff --git a/configure.ac b/configure.ac
index 2f2fc56b..b8435f68 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ dnl Process this file with autoconf to produce a configure script.
 dnl This config.in requires autoconf 2.5 or greater.
 
 AC_PREREQ([2.68])
-AC_INIT([qpdf],[2.3.1])
+AC_INIT([qpdf],[3.0.a0])
 
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_FILES([autoconf.mk])
diff --git a/libqpdf/QPDF.cc b/libqpdf/QPDF.cc
index b4bad4f2..4849ae9b 100644
--- a/libqpdf/QPDF.cc
+++ b/libqpdf/QPDF.cc
@@ -16,7 +16,7 @@
 #include <qpdf/QPDF_Null.hh>
 #include <qpdf/QPDF_Dictionary.hh>
 
-std::string QPDF::qpdf_version = "2.3.1";
+std::string QPDF::qpdf_version = "3.0.a0";
 
 static char const* EMPTY_PDF =
     "%PDF-1.3\n"
diff --git a/manual/qpdf-manual.xml b/manual/qpdf-manual.xml
index 192d5c33..6fa48759 100644
--- a/manual/qpdf-manual.xml
+++ b/manual/qpdf-manual.xml
@@ -5,8 +5,8 @@
 <!ENTITY mdash "&#x2014;">
 <!ENTITY ndash "&#x2013;">
 <!ENTITY nbsp "&#xA0;">
-<!ENTITY swversion "2.3.1">
-<!ENTITY lastreleased "December 28, 2011">
+<!ENTITY swversion "3.0.a0">
+<!ENTITY lastreleased "June 25, 2012">
 ]>
 <book>
  <bookinfo>
diff --git a/qpdf.spec b/qpdf.spec
index fb86c451..a51b34b1 100644
--- a/qpdf.spec
+++ b/qpdf.spec
@@ -1,6 +1,6 @@
 Summary: Command-line tools and library for transforming PDF files
 Name: qpdf
-Version: 2.3.1
+Version: 3.0.a0
 Release: 1%{?dist}
 License: Artistic
 Group: System Environment/Libraries