diff --git a/CHANGELOG.md b/CHANGELOG.md
index f691078..249479a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,9 @@
-## 0.4.0 [development]
+## 0.4.0 [2016-11-06]
 * [feature] Option to provide a trusted CA certificate (#2)
 * [feature] Deletion, revocation and renewal of secrets (#3)
 * [feature] Token creation (#4)
 * [feature] AppRole auth backend supported (#5)
+* [improvement] Support for complex secrets
 * [deprecation] App-ID backend marked as deprecated
 
 ## 0.3.0 [2016-10-07]
diff --git a/README.md b/README.md
index 3092c67..26412ff 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ String secret = vault.readSecret("some/secret/key").getValue();
 <dependency>
     <groupId>de.stklcode.jvault</groupId>
     <artifactId>connector</artifactId>
-    <version>0.3.0</version>
+    <version>0.4.0</version>
 </dependency>
 ```
 
diff --git a/pom.xml b/pom.xml
index c5b4476..74c163f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>de.stklcode.jvault</groupId>
     <artifactId>connector</artifactId>
-    <version>0.4.0-SNAPSHOT</version>
+    <version>0.4.0</version>
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
diff --git a/src/test/java/de/stklcode/jvault/connector/HTTPVaultConnectorTest.java b/src/test/java/de/stklcode/jvault/connector/HTTPVaultConnectorTest.java
index 0083400..d959109 100644
--- a/src/test/java/de/stklcode/jvault/connector/HTTPVaultConnectorTest.java
+++ b/src/test/java/de/stklcode/jvault/connector/HTTPVaultConnectorTest.java
@@ -60,7 +60,7 @@ public class HTTPVaultConnectorTest {
     private static String USER_ID = "5ADF8218-D7FB-4089-9E38-287465DBF37E";
     private static String APPROLE_ROLE_NAME = "testrole1";                          // role with secret ID
     private static String APPROLE_ROLE = "627b6400-90c3-a239-49a9-af65a448ca10";
-    private static String APPROLE_SECRET = "fa762ca1-53c2-c687-432e-65cc7e988726";
+    private static String APPROLE_SECRET = "5e8b0e99-d906-27f5-f043-ccb9bb53b5e8";
     private static String APPROLE_ROLE2 = "35b7bf43-9644-588a-e68f-2e8313bb23b7";   // role with CIDR subnet
     private static String SECRET_PATH = "userstore";
     private static String SECRET_KEY = "foo";
diff --git a/src/test/resources/data_dir/auth/ac4e0527-a7b2-1b40-1148-dc0dfaf01990/accessor/_e96c348451147331101ad48e157e8056ca1b039ee63a6aafd2d66446c94bcad8 b/src/test/resources/data_dir/auth/ac4e0527-a7b2-1b40-1148-dc0dfaf01990/accessor/_e96c348451147331101ad48e157e8056ca1b039ee63a6aafd2d66446c94bcad8
new file mode 100644
index 0000000..9c7bb63
--- /dev/null
+++ b/src/test/resources/data_dir/auth/ac4e0527-a7b2-1b40-1148-dc0dfaf01990/accessor/_e96c348451147331101ad48e157e8056ca1b039ee63a6aafd2d66446c94bcad8
@@ -0,0 +1 @@
+{"Key":"auth/ac4e0527-a7b2-1b40-1148-dc0dfaf01990/accessor/e96c348451147331101ad48e157e8056ca1b039ee63a6aafd2d66446c94bcad8","Value":"AAAAAQIcvMn5QMtwELRDXZD9nNf7y/8O6z7u0NUZqyJrBb2OYDRvGpSuPS3CIareSxl8y5F4xtadvhyhunCGBUd289H9foMjfGbVVsM1mbM5i6FDTW0sFOPmXX44mQV29PVNMO+fcLuSWb0+qU4erqylpcvdLW8="}
diff --git a/src/test/resources/data_dir/auth/ac4e0527-a7b2-1b40-1148-dc0dfaf01990/secret_id/7ec357dbed8f1b49bb2302aff1f08c57c2f03e03b842b7714ed13a5f9fbe970d/_941884199542458348fa08c650246e293eb2bf743350861d73b8fc2978ae5c3a b/src/test/resources/data_dir/auth/ac4e0527-a7b2-1b40-1148-dc0dfaf01990/secret_id/7ec357dbed8f1b49bb2302aff1f08c57c2f03e03b842b7714ed13a5f9fbe970d/_941884199542458348fa08c650246e293eb2bf743350861d73b8fc2978ae5c3a
new file mode 100644
index 0000000..7434598
--- /dev/null
+++ b/src/test/resources/data_dir/auth/ac4e0527-a7b2-1b40-1148-dc0dfaf01990/secret_id/7ec357dbed8f1b49bb2302aff1f08c57c2f03e03b842b7714ed13a5f9fbe970d/_941884199542458348fa08c650246e293eb2bf743350861d73b8fc2978ae5c3a
@@ -0,0 +1 @@
+{"Key":"auth/ac4e0527-a7b2-1b40-1148-dc0dfaf01990/secret_id/7ec357dbed8f1b49bb2302aff1f08c57c2f03e03b842b7714ed13a5f9fbe970d/941884199542458348fa08c650246e293eb2bf743350861d73b8fc2978ae5c3a","Value":"AAAAAQLESOciqLucvh8+6PvJKIAQV+P4dPm8q8lweJm5KKH5/Ffh7rtp3btSJhUj2ey5SZummV1mF2rABJ7VROSSjOTbb698VpdXPUeK/qDlyAiT3f2vP16dCbsr1K8Pd0XRdRyrw6osnUwuLgNa9L4pBAoprPn5UwflZVAmwNPWMH3B6Ieo5aZrStP3xuDfU+tjvljaEQALwQAqqo0LTBVU2idw96g/TO75VjbcnptiJOeTPqctJKmh/tdaf1F7x2vOyu5IkhBX3PO4Qn+5F4am66q7HQfB773ga8ZSUoSkph7nahF6JtmHKJ+A972iK9NFx/69jOe1ylwwzzlG4aP1bsrYjGgCIk3CNrvUmK7iO0X9AbzOEgz2d27/VbmGh/bb29z8Oc6Tiw2Qo/tiQtNUreamE5q0UN9XTVC/wdUd5ZdG7RftT6Zv3imPIuAwHJ+GTNSI4HCwc5as/HXMA2xrUdYeuj0rdJejYtyEBQ=="}