diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
index 892dccfd3291fb2924bc39778174c465efd035d7..665cca8b51493c27606e5fca1b367174908dccf9 100644
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -22,7 +22,7 @@ assignees: ''
 
 ## Your Environment and Setup
 
-* **graphql-java-codegen**: *E.g.: 3.1.1*
+* **graphql-java-codegen**: *E.g.: 4.0.0*
 * **Build tool**: *E.g.: Maven*
 * **Java tool**: *E.g.: Oracle 8u241*
 * **Mapping Config**: *E.g.:* 
diff --git a/build.gradle b/build.gradle
index 1eb9da7e307deee76f8ba93d485abc0a4ab5f9a2..ab934e727449d9427a86eef6d074f56eafa64059 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,7 +9,7 @@ plugins {
     id "org.sonarqube" version "3.0"
 }
 
-version = "3.1.2-SNAPSHOT"
+version = "4.0.0"
 group = "io.github.kobylynskyi"
 
 repositories {
diff --git a/plugins/gradle/README.md b/plugins/gradle/README.md
index 70776ad46b8ac5e70d5854997a47b373a5b07fe5..e79a4b24e4fd2bec7cf81c28609bed1bb46a4377 100644
--- a/plugins/gradle/README.md
+++ b/plugins/gradle/README.md
@@ -18,7 +18,7 @@
 
 ```groovy
 plugins {
-  id "io.github.kobylynskyi.graphql.codegen" version "3.1.1"
+  id "io.github.kobylynskyi.graphql.codegen" version "4.0.0"
 }
 ```
 
@@ -32,7 +32,7 @@ buildscript {
     }
   }
   dependencies {
-    classpath "io.github.kobylynskyi.graphql.codegen:graphql-codegen-gradle-plugin:3.1.1"
+    classpath "io.github.kobylynskyi.graphql.codegen:graphql-codegen-gradle-plugin:4.0.0"
   }
 }
 
diff --git a/plugins/gradle/example-client/build.gradle b/plugins/gradle/example-client/build.gradle
index d53381663d5de67b3bfaf7453f54a5e042c44cda..bd48f34a6c0c9e71c58ec2b9b17f5168985cf50a 100644
--- a/plugins/gradle/example-client/build.gradle
+++ b/plugins/gradle/example-client/build.gradle
@@ -7,7 +7,7 @@ plugins {
 
     // use the latest available version:
     // https://plugins.gradle.org/plugin/io.github.kobylynskyi.graphql.codegen
-    id "io.github.kobylynskyi.graphql.codegen" version "3.1.2-SNAPSHOT"
+    id "io.github.kobylynskyi.graphql.codegen" version "4.0.0"
 }
 
 mainClassName = "io.github.kobylynskyi.order.Application"
@@ -22,7 +22,7 @@ dependencies {
 
     // use the latest available version:
     // https://search.maven.org/artifact/io.github.kobylynskyi/graphql-java-codegen
-    implementation "io.github.kobylynskyi:graphql-java-codegen:3.1.2-SNAPSHOT"
+    implementation "io.github.kobylynskyi:graphql-java-codegen:4.0.0"
 
     implementation "org.apache.httpcomponents:httpclient:4.5.13"
     implementation "javax.validation:validation-api:2.0.1.Final"
diff --git a/plugins/gradle/example-server/build.gradle b/plugins/gradle/example-server/build.gradle
index f5634be63ff33aaec5cabab81eef83a223bb6d9f..596e85a48ea9f8783d9371085501d1f3199fadb1 100644
--- a/plugins/gradle/example-server/build.gradle
+++ b/plugins/gradle/example-server/build.gradle
@@ -6,7 +6,7 @@ plugins {
     //
     // use the latest available version:
     // https://plugins.gradle.org/plugin/io.github.kobylynskyi.graphql.codegen
-    id "io.github.kobylynskyi.graphql.codegen" version "3.1.2-SNAPSHOT"
+    id "io.github.kobylynskyi.graphql.codegen" version "4.0.0"
 }
 
 mainClassName = "io.github.kobylynskyi.product.Application"
diff --git a/plugins/gradle/graphql-java-codegen-gradle-plugin/build.gradle b/plugins/gradle/graphql-java-codegen-gradle-plugin/build.gradle
index e7723a8a1f78f0ed13123c445c26e59d49811d35..fafbed14f6627698da07f0818e59ad0847435e82 100644
--- a/plugins/gradle/graphql-java-codegen-gradle-plugin/build.gradle
+++ b/plugins/gradle/graphql-java-codegen-gradle-plugin/build.gradle
@@ -17,7 +17,7 @@ apply plugin: "idea"
 apply plugin: "maven-publish"
 
 group = "io.github.kobylynskyi"
-version = "3.1.2-SNAPSHOT"
+version = "4.0.0"
 description = "Provides a task for generating Java code based on GraphQL schema"
 
 dependencies {
diff --git a/plugins/maven/README.md b/plugins/maven/README.md
index 151721e87fc9bd48add7d698f280ad09836757f5..03bff43b462a736c2288afbf5c4459e917de9160 100644
--- a/plugins/maven/README.md
+++ b/plugins/maven/README.md
@@ -21,7 +21,7 @@
         <plugin>
             <groupId>io.github.kobylynskyi</groupId>
             <artifactId>graphql-codegen-maven-plugin</artifactId>
-            <version>3.1.1</version>
+            <version>4.0.0</version>
             <executions>
                 <execution>
                     <goals>
diff --git a/plugins/maven/example-client/pom.xml b/plugins/maven/example-client/pom.xml
index 4bef949812e3ff934ca1363256b8442327211432..b660659c278f71b4b0829837a56206a114727be2 100644
--- a/plugins/maven/example-client/pom.xml
+++ b/plugins/maven/example-client/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>io.github.kobylynskyi</groupId>
     <artifactId>graphql-codegen-maven-plugin-example-client</artifactId>
-    <version>3.1.2-SNAPSHOT</version>
+    <version>4.0.0</version>
     <name>graphql-codegen-maven-plugin-example-client</name>
 
     <build>
diff --git a/plugins/maven/example-server/pom.xml b/plugins/maven/example-server/pom.xml
index 6b73f661317baef1dd275173ffea7f7be174909d..4a508d76d5c9ce3a024c3ba3b78c69441cde1e20 100644
--- a/plugins/maven/example-server/pom.xml
+++ b/plugins/maven/example-server/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>io.github.kobylynskyi</groupId>
     <artifactId>graphql-codegen-maven-plugin-example-server</artifactId>
-    <version>3.1.2-SNAPSHOT</version>
+    <version>4.0.0</version>
     <name>graphql-codegen-maven-plugin-example-server</name>
 
     <build>
diff --git a/plugins/maven/graphql-java-codegen-maven-plugin/pom.xml b/plugins/maven/graphql-java-codegen-maven-plugin/pom.xml
index c4db97350e42e9d6c4d0c2766717fdfdcece57c9..f18e4947941cb4b082c0b91a8f1be21918b333f7 100644
--- a/plugins/maven/graphql-java-codegen-maven-plugin/pom.xml
+++ b/plugins/maven/graphql-java-codegen-maven-plugin/pom.xml
@@ -4,7 +4,7 @@
     <groupId>io.github.kobylynskyi</groupId>
     <artifactId>graphql-codegen-maven-plugin</artifactId>
     <packaging>maven-plugin</packaging>
-    <version>3.1.2-SNAPSHOT</version>
+    <version>4.0.0-SNAPSHOT</version>
 
     <name>graphql-codegen-maven-plugin</name>
     <description>Provides a goal for generating Java code based on GraphQL schema</description>
@@ -36,7 +36,7 @@
         <developerConnection>scm:git:git@github.com:kobylynskyi/graphql-java-codegen.git
         </developerConnection>
         <url>https://github.com/kobylynskyi/graphql-java-codegen/tree/master/plugins/maven</url>
-        <tag>v3.1.1</tag>
+        <tag>v4.0.0</tag>
     </scm>
 
     <distributionManagement>
@@ -70,7 +70,7 @@
         <version.maven-scm-provider-gitexe>1.11.2</version.maven-scm-provider-gitexe>
         <version.maven-gpg-plugin>1.6</version.maven-gpg-plugin>
 
-        <version.graphql-java-codegen>3.1.2-SNAPSHOT</version.graphql-java-codegen>
+        <version.graphql-java-codegen>4.0.0</version.graphql-java-codegen>
     </properties>
 
     <dependencies>
diff --git a/plugins/sbt/README.md b/plugins/sbt/README.md
index abc8fab442b7b58e57e545baa69ac4f6e121029c..768b7a13cf7c4eddf066c7f9c77750806b211dd2 100644
--- a/plugins/sbt/README.md
+++ b/plugins/sbt/README.md
@@ -33,7 +33,7 @@ enablePlugins(GraphQLCodegenPlugin)
 GraphQLCodegenPluginDependencies
 
 //default graphqlJavaCodegen is release
-graphqlJavaCodegenVersion := Some("3.1.1")
+graphqlJavaCodegenVersion := Some("4.0.0")
 graphqlSchemaPaths := List("src/main/resources/schema.graphqls")
 modelPackageName := Some("io.github.dreamylost.model")
 apiPackageName := Some("io.github.dreamylost.api")
diff --git a/plugins/sbt/graphql-java-codegen-sbt-plugin/project/Dependencies.scala b/plugins/sbt/graphql-java-codegen-sbt-plugin/project/Dependencies.scala
index 29ef605341065358f3ae1a64cbb7d5c6b349cb5f..61381ff235de92860ac28ad1220ac2635d985db1 100644
--- a/plugins/sbt/graphql-java-codegen-sbt-plugin/project/Dependencies.scala
+++ b/plugins/sbt/graphql-java-codegen-sbt-plugin/project/Dependencies.scala
@@ -13,7 +13,7 @@ object Dependencies {
   object Versions {
     lazy val scala212 = "2.12.12"
     lazy val scala211 = "2.11.12"
-    val codegen = "3.1.2-SNAPSHOT"
+    val codegen = "4.0.0"
   }
 
   import Versions._
diff --git a/plugins/sbt/graphql-java-codegen-sbt-plugin/src/main/scala/io/github/dreamylost/graphql/codegen/GraphQLCodegenPlugin.scala b/plugins/sbt/graphql-java-codegen-sbt-plugin/src/main/scala/io/github/dreamylost/graphql/codegen/GraphQLCodegenPlugin.scala
index f278ee3c23ca327cb96e5e74d92c4cdbec3a1afa..15b073106c1633324c889561ef3eb52a01864f84 100644
--- a/plugins/sbt/graphql-java-codegen-sbt-plugin/src/main/scala/io/github/dreamylost/graphql/codegen/GraphQLCodegenPlugin.scala
+++ b/plugins/sbt/graphql-java-codegen-sbt-plugin/src/main/scala/io/github/dreamylost/graphql/codegen/GraphQLCodegenPlugin.scala
@@ -29,7 +29,7 @@ class GraphQLCodegenPlugin(configuration: Configuration, private[codegen] val co
 
   //override this by graphqlJavaCodegenVersion and javaxValidationApiVersion
   private val jValidation = "2.0.1.Final"
-  private val codegen = "3.1.2-SNAPSHOT"
+  private val codegen = "4.0.0"
 
   object GlobalImport extends GraphQLCodegenKeys {
 
diff --git a/plugins/sbt/graphql-java-codegen-sbt-plugin/src/sbt-test/graphql-codegen-sbt-plugin/example-client/build.sbt b/plugins/sbt/graphql-java-codegen-sbt-plugin/src/sbt-test/graphql-codegen-sbt-plugin/example-client/build.sbt
index 15c88dc76f4bf400a5d5a8e507bd7cad5363cb5e..d277122b3d2c435b4e61055d66d3a55856d677c1 100644
--- a/plugins/sbt/graphql-java-codegen-sbt-plugin/src/sbt-test/graphql-codegen-sbt-plugin/example-client/build.sbt
+++ b/plugins/sbt/graphql-java-codegen-sbt-plugin/src/sbt-test/graphql-codegen-sbt-plugin/example-client/build.sbt
@@ -17,12 +17,12 @@ libraryDependencies ++= Seq(
 
 enablePlugins(GraphQLCodegenPlugin)
 
-graphqlJavaCodegenVersion := Some("3.1.2-SNAPSHOT")
+graphqlJavaCodegenVersion := Some("4.0.0")
 
 GraphQLCodegenPluginDependencies
 
 //default graphqlJavaCodegen is release
-//graphqlJavaCodegenVersion := Some("3.1.2-SNAPSHOT")
+//graphqlJavaCodegenVersion := Some("4.0.0")
 graphqlSchemaPaths := List("src/main/resources/schema.graphqls")
 modelPackageName := Some("io.github.dreamylost.model")
 apiPackageName := Some("io.github.dreamylost.api")
diff --git a/plugins/sbt/graphql-java-codegen-sbt-plugin/src/sbt-test/graphql-codegen-sbt-plugin/example-client/project/plugins.sbt b/plugins/sbt/graphql-java-codegen-sbt-plugin/src/sbt-test/graphql-codegen-sbt-plugin/example-client/project/plugins.sbt
index ae4dfcfff773d3136fdf59c852c3455c4baaa1a3..3f9699b51c327f3783715aedef479d1c378f39f1 100644
--- a/plugins/sbt/graphql-java-codegen-sbt-plugin/src/sbt-test/graphql-codegen-sbt-plugin/example-client/project/plugins.sbt
+++ b/plugins/sbt/graphql-java-codegen-sbt-plugin/src/sbt-test/graphql-codegen-sbt-plugin/example-client/project/plugins.sbt
@@ -1 +1 @@
-addSbtPlugin("io.github.jxnu-liguobin" % "graphql-codegen-sbt-plugin" % "3.1.2-SNAPSHOT")
+addSbtPlugin("io.github.jxnu-liguobin" % "graphql-codegen-sbt-plugin" % "4.0.0")
diff --git a/plugins/sbt/graphql-java-codegen-sbt-plugin/src/sbt-test/graphql-codegen-sbt-plugin/simple/project/plugins.sbt b/plugins/sbt/graphql-java-codegen-sbt-plugin/src/sbt-test/graphql-codegen-sbt-plugin/simple/project/plugins.sbt
index c43785cb6a59281a92e89459a403467bfdad15ff..d430ab18b0564071f141b5c80e5c61e7f85af9e8 100644
--- a/plugins/sbt/graphql-java-codegen-sbt-plugin/src/sbt-test/graphql-codegen-sbt-plugin/simple/project/plugins.sbt
+++ b/plugins/sbt/graphql-java-codegen-sbt-plugin/src/sbt-test/graphql-codegen-sbt-plugin/simple/project/plugins.sbt
@@ -1,4 +1,4 @@
-sys.props.get("plugin.version").orElse(Some("3.1.2-SNAPSHOT")) match {
+sys.props.get("plugin.version").orElse(Some("4.0.0")) match {
   case Some(x) => addSbtPlugin("io.github.jxnu-liguobin" % "graphql-codegen-sbt-plugin" % x)
   case _ => sys.error("""|The system property 'plugin.version' is not defined.
                          |Specify this property using the scriptedLaunchOpts -D.""".stripMargin)
diff --git a/plugins/sbt/graphql-java-codegen-sbt-plugin/version.sbt b/plugins/sbt/graphql-java-codegen-sbt-plugin/version.sbt
index b3c6fd5195a4aa38864009354e1ea1b4cbdedcaa..ac82d4ddad6d1771c325237b9d74639daa5c84c3 100644
--- a/plugins/sbt/graphql-java-codegen-sbt-plugin/version.sbt
+++ b/plugins/sbt/graphql-java-codegen-sbt-plugin/version.sbt
@@ -1 +1 @@
-version in ThisBuild := "3.1.2-SNAPSHOT"
+version in ThisBuild := "4.0.0"