Set version number for truth-parent to 1.4.0.

diff --git a/core/pom.xml b/core/pom.xml
index b86271d..4d44814 100644
--- a/core/pom.xml
+++ b/core/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.google.truth</groupId>
     <artifactId>truth-parent</artifactId>
-    <version>HEAD-SNAPSHOT</version>
+    <version>1.4.0</version>
   </parent>
   <artifactId>truth</artifactId>
   <name>Truth Core</name>

diff --git a/extensions/java8/pom.xml b/extensions/java8/pom.xml
index 951dc43..73475e6 100644
--- a/extensions/java8/pom.xml
+++ b/extensions/java8/pom.xml

@@ -7,7 +7,7 @@
   <parent>
     <groupId>com.google.truth.extensions</groupId>
     <artifactId>truth-extensions-parent</artifactId>
-    <version>HEAD-SNAPSHOT</version>
+    <version>1.4.0</version>
   </parent>
   <artifactId>truth-java8-extension</artifactId>
   <name>Truth Extension for Java8</name>

diff --git a/extensions/liteproto/pom.xml b/extensions/liteproto/pom.xml
index 7474ee5..76b26c1 100644
--- a/extensions/liteproto/pom.xml
+++ b/extensions/liteproto/pom.xml

@@ -7,7 +7,7 @@
   <parent>
     <groupId>com.google.truth.extensions</groupId>
     <artifactId>truth-extensions-parent</artifactId>
-    <version>HEAD-SNAPSHOT</version>
+    <version>1.4.0</version>
   </parent>
   <artifactId>truth-liteproto-extension</artifactId>
   <name>Truth Extension for Lite Protocol Buffers</name>

diff --git a/extensions/pom.xml b/extensions/pom.xml
index a3af929..e953162 100644
--- a/extensions/pom.xml
+++ b/extensions/pom.xml

@@ -7,7 +7,7 @@
   <parent>
     <groupId>com.google.truth</groupId>
     <artifactId>truth-parent</artifactId>
-    <version>HEAD-SNAPSHOT</version>
+    <version>1.4.0</version>
   </parent>
   <groupId>com.google.truth.extensions</groupId>
   <artifactId>truth-extensions-parent</artifactId>

diff --git a/extensions/proto/pom.xml b/extensions/proto/pom.xml
index 7c07acc..b0e083f 100644
--- a/extensions/proto/pom.xml
+++ b/extensions/proto/pom.xml

@@ -7,7 +7,7 @@
   <parent>
     <groupId>com.google.truth.extensions</groupId>
     <artifactId>truth-extensions-parent</artifactId>
-    <version>HEAD-SNAPSHOT</version>
+    <version>1.4.0</version>
   </parent>
   <artifactId>truth-proto-extension</artifactId>
   <name>Truth Extension for Protocol Buffers</name>

diff --git a/extensions/re2j/pom.xml b/extensions/re2j/pom.xml
index 6ca4180..be5c383 100644
--- a/extensions/re2j/pom.xml
+++ b/extensions/re2j/pom.xml

@@ -7,7 +7,7 @@
   <parent>
     <groupId>com.google.truth.extensions</groupId>
     <artifactId>truth-extensions-parent</artifactId>
-    <version>HEAD-SNAPSHOT</version>
+    <version>1.4.0</version>
   </parent>
   <artifactId>truth-re2j-extension</artifactId>
   <name>Truth Extension for RE2J</name>

diff --git a/pom.xml b/pom.xml
index 3d0af47..4fd8af0 100644
--- a/pom.xml
+++ b/pom.xml

@@ -6,7 +6,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.truth</groupId>
   <artifactId>truth-parent</artifactId>
-  <version>HEAD-SNAPSHOT</version>
+  <version>1.4.0</version>
   <packaging>pom</packaging>
   <name>Truth (Parent)</name>
   <properties>