diff --git a/ChangeLog b/ChangeLog
index 622495b4..02937066 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2014-01-14  Jay Berkenbilt  <ejb@ql.org>
+
+	* 5.1.1: release
+
 2013-12-26  Jay Berkenbilt  <ejb@ql.org>
 
 	* Bug fix: when copying foreign objects (which occurs during page
diff --git a/configure.ac b/configure.ac
index 4623ca0f..b26f0fd9 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],[5.1.0])
+AC_INIT([qpdf],[5.1.1])
 
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_FILES([autoconf.mk])
diff --git a/libqpdf/QPDF.cc b/libqpdf/QPDF.cc
index 51f39abd..f1107e8a 100644
--- a/libqpdf/QPDF.cc
+++ b/libqpdf/QPDF.cc
@@ -20,7 +20,7 @@
 #include <qpdf/QPDF_Null.hh>
 #include <qpdf/QPDF_Dictionary.hh>
 
-std::string QPDF::qpdf_version = "5.1.0";
+std::string QPDF::qpdf_version = "5.1.1";
 
 static char const* EMPTY_PDF =
     "%PDF-1.3\n"
diff --git a/libqpdf/build.mk b/libqpdf/build.mk
index cc815b13..0cbc8757 100644
--- a/libqpdf/build.mk
+++ b/libqpdf/build.mk
@@ -96,4 +96,4 @@ $(COBJS_libqpdf): libqpdf/$(OUTPUT_DIR)/%.$(LOBJ): libqpdf/%.c
 # * Otherwise, increment REVISION
 
 $(TARGETS_libqpdf): $(OBJS_libqpdf)
-	$(call makelib,$(OBJS_libqpdf),$@,$(LDFLAGS),$(LIBS),14,0,1)
+	$(call makelib,$(OBJS_libqpdf),$@,$(LDFLAGS),$(LIBS),14,1,1)
diff --git a/manual/qpdf-manual.xml b/manual/qpdf-manual.xml
index 9c356bd2..5f39892a 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 "5.1.0">
-<!ENTITY lastreleased "December 17, 2013">
+<!ENTITY swversion "5.1.1">
+<!ENTITY lastreleased "December 17, 2014">
 ]>
 <book>
  <bookinfo>
@@ -2665,6 +2665,21 @@ print "\n";
    <filename>ChangeLog</filename> in the source distribution.
   </para>
   <variablelist>
+   <varlistentry>
+    <term>5.1.1: January 14, 2014</term>
+    <listitem>
+     <itemizedlist>
+      <listitem>
+       <para>
+        Performance fix: copying foreign objects could be very slow
+        with certain types of files.  This was most likely to be
+        visible during page splitting and was due to traversing the
+        same objects multiple times in some cases.
+       </para>
+      </listitem>
+     </itemizedlist>
+    </listitem>
+   </varlistentry>
    <varlistentry>
     <term>5.1.0: December 17, 2013</term>
     <listitem>
@@ -3144,8 +3159,6 @@ print "\n";
      </itemizedlist>
     </listitem>
    </varlistentry>
-  </variablelist>
-  <variablelist>
    <varlistentry>
     <term>3.0.2: September 6, 2012</term>
     <listitem>
@@ -3170,8 +3183,6 @@ print "\n";
      </itemizedlist>
     </listitem>
    </varlistentry>
-  </variablelist>
-  <variablelist>
    <varlistentry>
     <term>3.0.1: August 11, 2012</term>
     <listitem>
@@ -3195,8 +3206,6 @@ print "\n";
      </itemizedlist>
     </listitem>
    </varlistentry>
-  </variablelist>
-  <variablelist>
    <varlistentry>
     <term>3.0.0: August 2, 2012</term>
     <listitem>
@@ -3351,8 +3360,6 @@ print "\n";
      </itemizedlist>
     </listitem>
    </varlistentry>
-  </variablelist>
-  <variablelist>
    <varlistentry>
     <term>2.3.1: December 28, 2011</term>
     <listitem>
@@ -3450,8 +3457,6 @@ print "\n";
      </itemizedlist>
     </listitem>
    </varlistentry>
-  </variablelist>
-  <variablelist>
    <varlistentry>
     <term>2.2.4: June 25, 2011</term>
     <listitem>