diff --git a/ChangeLog b/ChangeLog
index b2e403fb..d6648a45 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,18 @@
 commit unknown
 Author: Thibaut Paumard <thibaut.paumard@obspm.fr>
-Date:   Fri Aug 2 20:53:28 2019 +0200
+Date:   Fri Aug 2 22:36:32 2019 +0200
+
+    Releasing 1.3.4
+
+commit 8d8122d2089c554c9d6c50f2b17f48eca1b1c723
+Author: Thibaut Paumard <thibaut.paumard@obspm.fr>
+Date:   Fri Aug 2 22:35:03 2019 +0200
+
+    fix gyoto.util.rayTrace to work in the stable branch
+
+commit 6b45c338432a6dd2516b0ddede0b1382f2776327
+Author: Thibaut Paumard <thibaut.paumard@obspm.fr>
+Date:   Fri Aug 2 20:53:30 2019 +0200
 
     Releasing 1.3.3
 
diff --git a/NEWS b/NEWS
index 709917e1..3e3869fd 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,6 @@
+1.3.4 2019/08/02 BUG
+   * Python: fix gyoto?util.rayTrace
+
 1.3.3 2019/08/02 BUG
    * Python: install gyoto.util
 
diff --git a/configure b/configure
index 9d140772..c8107858 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 Gyoto 1.3.2.
+# Generated by GNU Autoconf 2.69 for Gyoto 1.3.4.
 #
 # Report bugs to <gyoto@sympa.obspm.fr>.
 #
@@ -590,8 +590,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='Gyoto'
 PACKAGE_TARNAME='gyoto'
-PACKAGE_VERSION='1.3.2'
-PACKAGE_STRING='Gyoto 1.3.2'
+PACKAGE_VERSION='1.3.4'
+PACKAGE_STRING='Gyoto 1.3.4'
 PACKAGE_BUGREPORT='gyoto@sympa.obspm.fr'
 PACKAGE_URL=''
 
@@ -1488,7 +1488,7 @@ 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 Gyoto 1.3.2 to adapt to many kinds of systems.
+\`configure' configures Gyoto 1.3.4 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1560,7 +1560,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of Gyoto 1.3.2:";;
+     short | recursive ) echo "Configuration of Gyoto 1.3.4:";;
    esac
   cat <<\_ACEOF
 
@@ -1809,7 +1809,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-Gyoto configure 1.3.2
+Gyoto configure 1.3.4
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2508,7 +2508,7 @@ 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 Gyoto $as_me 1.3.2, which was
+It was created by Gyoto $as_me 1.3.4, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -3484,7 +3484,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='gyoto'
- VERSION='1.3.2'
+ VERSION='1.3.4'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -21955,7 +21955,7 @@ 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 Gyoto $as_me 1.3.2, which was
+This file was extended by Gyoto $as_me 1.3.4, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -22021,7 +22021,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-Gyoto config.status 1.3.2
+Gyoto config.status 1.3.4
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index 1a7a7c1e..5e956a45 100644
--- a/configure.ac
+++ b/configure.ac
@@ -10,7 +10,7 @@ dnl without any warranty.
 
 
 AC_PREREQ([2.69])
-AC_INIT([Gyoto], [1.3.3], [gyoto@sympa.obspm.fr])
+AC_INIT([Gyoto], [1.3.4], [gyoto@sympa.obspm.fr])
 gyoto_test_CXXFLAGS=${CXXFLAGS+set}
 gyoto_test_CPPFLAGS=${CPPFLAGS+set}
 AC_CANONICAL_SYSTEM