diff --git a/ChangeLog b/ChangeLog
index 9a5caa7e9..ab96d8aca 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,6 @@
+Wed Oct 18 15:20:29 CEST 2017
+	Releasing Taler v0.4.0. -CG
+
 Tue Oct 17 14:32:46 CEST 2017
 	Fix building of /keys response to include full auditor
 	signature set instead of partial map. -CG
diff --git a/configure.ac b/configure.ac
index f9eb7fa7e..454de712c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,7 +17,7 @@
 #
 #
 AC_PREREQ([2.69])
-AC_INIT([taler-exchange], [0.3.0], [taler-bug@gnunet.org])
+AC_INIT([taler-exchange], [0.4.0], [taler-bug@gnunet.org])
 AC_CONFIG_SRCDIR([src/util/util.c])
 AC_CONFIG_HEADERS([taler_config.h])
 # support for non-recursive builds
diff --git a/src/exchange-lib/Makefile.am b/src/exchange-lib/Makefile.am
index ce1653cc9..b3a30e107 100644
--- a/src/exchange-lib/Makefile.am
+++ b/src/exchange-lib/Makefile.am
@@ -10,7 +10,7 @@ lib_LTLIBRARIES = \
   libtalerexchange.la
 
 libtalerexchange_la_LDFLAGS = \
-  -version-info 2:0:0 \
+  -version-info 3:0:0 \
   -no-undefined
 
 libtalerexchange_la_SOURCES = \
diff --git a/src/exchangedb/Makefile.am b/src/exchangedb/Makefile.am
index 2122c174c..66299d786 100644
--- a/src/exchangedb/Makefile.am
+++ b/src/exchangedb/Makefile.am
@@ -54,7 +54,7 @@ libtalerexchangedb_la_LIBADD = \
 
 libtalerexchangedb_la_LDFLAGS = \
   $(POSTGRESQL_LDFLAGS) \
-  -version-info 0:0:0 \
+  -version-info 1:0:0 \
   -no-undefined
 
 
diff --git a/src/wire/Makefile.am b/src/wire/Makefile.am
index f8fb9d048..5f651461e 100644
--- a/src/wire/Makefile.am
+++ b/src/wire/Makefile.am
@@ -75,7 +75,7 @@ libtalerwire_la_LIBADD = \
   -lgnunetutil \
   $(XLIB)
 libtalerwire_la_LDFLAGS = \
-  -version-info 0:0:0 \
+  -version-info 1:0:0 \
   -export-dynamic -no-undefined