diff --git a/ChangeLog b/ChangeLog
index 8283817f..96e7f82f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2019-05-18  Jay Berkenbilt  <ejb@ql.org>
+
+	* 8.4.2: release
+
 2019-05-16  Jay Berkenbilt  <ejb@ql.org>
 
 	* Fix memory error in Windows-only code from typo. Fixes #330.
diff --git a/configure.ac b/configure.ac
index 47586f1c..1a474011 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],[8.4.1])
+AC_INIT([qpdf],[8.4.2])
 
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_FILES([autoconf.mk])
@@ -53,7 +53,7 @@ LT_INIT([win32-dll])
 # LT = libtool
 LT_CURRENT=25
 LT_AGE=4
-LT_REVISION=1
+LT_REVISION=2
 AC_SUBST(LT_CURRENT)
 AC_SUBST(LT_REVISION)
 AC_SUBST(LT_AGE)
diff --git a/libqpdf/QPDF.cc b/libqpdf/QPDF.cc
index fd76bc18..c1e30e08 100644
--- a/libqpdf/QPDF.cc
+++ b/libqpdf/QPDF.cc
@@ -21,7 +21,7 @@
 #include <qpdf/QPDF_Dictionary.hh>
 #include <qpdf/QPDF_Stream.hh>
 
-std::string QPDF::qpdf_version = "8.4.1";
+std::string QPDF::qpdf_version = "8.4.2";
 
 static char const* EMPTY_PDF =
     "%PDF-1.3\n"
diff --git a/manual/qpdf-manual.xml b/manual/qpdf-manual.xml
index a8904e26..225153b6 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 "8.4.1">
-<!ENTITY lastreleased "April 27, 2019">
+<!ENTITY swversion "8.4.2">
+<!ENTITY lastreleased "May 18, 2019">
 ]>
 <book>
  <bookinfo>
@@ -4348,7 +4348,18 @@ print "\n";
   </para>
   <variablelist>
    <varlistentry>
-    <term>8.4.1: April 21, 2019</term>
+    <term>8.4.2: May 18, 2019</term>
+    <listitem>
+     <para>
+      This release has just one change: correction of a buffer overrun
+      in the Windows code used to open files. Windows users should
+      take this update. There are no code changes that affect
+      non-Windows releases.
+     </para>
+    </listitem>
+   </varlistentry>
+   <varlistentry>
+    <term>8.4.1: April 27, 2019</term>
     <listitem>
      <itemizedlist>
       <listitem>
diff --git a/qpdf/qpdf.cc b/qpdf/qpdf.cc
index 90f719b1..5a8a82d1 100644
--- a/qpdf/qpdf.cc
+++ b/qpdf/qpdf.cc
@@ -30,7 +30,7 @@ static int const EXIT_WARNING = 3;
 
 static char const* whoami = 0;
 
-static std::string expected_version = "8.4.1";
+static std::string expected_version = "8.4.2";
 
 struct PageSpec
 {