diff --git a/DESCRIPTION b/DESCRIPTION
index 3bdd0d8c..d9ac6db2 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,5 +1,5 @@
 Package: RMINC
-Version: 1.4.1.1
+Version: 1.4.2.0
 Date: 2016-05-02
 Title: Statistical Tools for Medical Imaging NetCDF (MINC) Files
 Authors@R: c(person("Jason", "Lerch", role = "aut", email = "jason.lerch@sickkids.ca"), 
diff --git a/configure b/configure
index 0041b1ea..7f2a7b2d 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for RMINC 1.4.1.1.
+# Generated by GNU Autoconf 2.69 for RMINC 1.4.2.0.
 #
 #
 # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
@@ -577,8 +577,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='RMINC'
 PACKAGE_TARNAME='rminc'
-PACKAGE_VERSION='1.4.1.1'
-PACKAGE_STRING='RMINC 1.4.1.1'
+PACKAGE_VERSION='1.4.2.0'
+PACKAGE_STRING='RMINC 1.4.2.0'
 PACKAGE_BUGREPORT=''
 PACKAGE_URL=''
 
@@ -1248,7 +1248,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures RMINC 1.4.1.1 to adapt to many kinds of systems.
+\`configure' configures RMINC 1.4.2.0 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1309,7 +1309,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of RMINC 1.4.1.1:";;
+     short | recursive ) echo "Configuration of RMINC 1.4.2.0:";;
    esac
   cat <<\_ACEOF
 
@@ -1408,7 +1408,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-RMINC configure 1.4.1.1
+RMINC configure 1.4.2.0
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -1798,7 +1798,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by RMINC $as_me 1.4.1.1, which was
+It was created by RMINC $as_me 1.4.2.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -5196,7 +5196,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by RMINC $as_me 1.4.1.1, which was
+This file was extended by RMINC $as_me 1.4.2.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -5249,7 +5249,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-RMINC config.status 1.4.1.1
+RMINC config.status 1.4.2.0
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index 5d899c67..f2e323e8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([RMINC], 1.4.1.1)
+AC_INIT([RMINC], 1.4.2.0)
 AC_PREREQ([2.68])
 AC_CONFIG_SRCDIR([src/slice_loop_functions.c])
 AC_PROG_CC