diff --git a/Dockerfile b/Dockerfile
index c013b67122..c95222e9f3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,7 +5,7 @@ RUN mvn clean package
 
 FROM openjdk:jre-slim
 WORKDIR /iri
-COPY --from=builder /iri/target/iri-1.3.2.2.jar iri.jar
+COPY --from=builder /iri/target/iri-1.4.0.jar iri.jar
 COPY logback.xml /iri
 VOLUME /iri
 
diff --git a/README.md b/README.md
index 2bc3a81c2b..19d8720870 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ This is the main branch of the main IRI repository, as this is a IOTA reference
 
 It allows to connect easily using java directly to a local or a remote [[IOTA node]](http://learn.iota.org/).
 
-* **Latest release:** 1.3.2.2 Release
+* **Latest release:** 1.4.0 Release
 * **License:** GPLv3
 
 # How to get started
diff --git a/changelog.txt b/changelog.txt
index 4f6d8591fd..c24dca7580 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,10 @@
+1.4.0
+    - Snapshot at milestone 217000
+    - Added Curl-P-81 and moved most operations to it (see https://github.com/iotaledger/kerl)
+    - Adjusted transaction structure - added attachment timestamp 
+    - Adjusted PoW implementation to set attachment timestamp
+    - Disable Curl signatures for snapshot addresses
+
 1.3.2.2
     - Reorganized milestone rescan to improve update time
 
diff --git a/dependency-reduced-pom.xml b/dependency-reduced-pom.xml
index 363bca2f63..e4e37a37fb 100644
--- a/dependency-reduced-pom.xml
+++ b/dependency-reduced-pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.iota</groupId>
   <artifactId>iri</artifactId>
   <name>IRI</name>
-  <version>1.3.2.2</version>
+  <version>1.4.0</version>
   <description>IOTA Reference Implementation</description>
   <scm>
     <connection>scm:git:git://github.com/iotaledger/iri.git</connection>
diff --git a/pom.xml b/pom.xml
index 10b8239e37..883423b7e8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>com.iota</groupId>
     <artifactId>iri</artifactId>
-    <version>1.3.2.2</version>
+    <version>1.4.0</version>
 
     <name>IRI</name>
     <description>IOTA Reference Implementation</description>
diff --git a/src/main/java/com/iota/iri/IRI.java b/src/main/java/com/iota/iri/IRI.java
index f7b803d0e9..20370a5aa8 100644
--- a/src/main/java/com/iota/iri/IRI.java
+++ b/src/main/java/com/iota/iri/IRI.java
@@ -40,7 +40,7 @@ public class IRI {
 
     public static final String MAINNET_NAME = "IRI";
     public static final String TESTNET_NAME = "IRI Testnet";
-    public static final String VERSION = "1.3.2.2";
+    public static final String VERSION = "1.4.0";
     public static Iota iota;
     public static API api;
     public static IXI ixi;