diff --git a/CHANGELOG.md b/CHANGELOG.md
index a09f977..5dfb452 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,8 +3,27 @@
 <!-- Changelog for bsorrentino maven-annotation-plugin. -->
 
 ## Next release
+###  [#81](https://github.com/bsorrentino/maven-annotation-plugin/issues/81) Compilation errors ignored during processing    *under investigation*  
+
+**issue #81 add compilation result**
+
+
+[85ba56d3b87e40a](https://github.com/bsorrentino/maven-annotation-plugin/commit/85ba56d3b87e40a) bartolomeo sorrentino *2020-07-17 13:19:03*
+
+
+## v4.0-rc1
 ### Generic changes
 
+**update readme**
+
+
+[2262a4d28954925](https://github.com/bsorrentino/maven-annotation-plugin/commit/2262a4d28954925) bsorrentino *2020-04-17 16:16:12*
+
+**update chagelog**
+
+
+[d444f63f9c4bed9](https://github.com/bsorrentino/maven-annotation-plugin/commit/d444f63f9c4bed9) bartolomeo sorrentino *2020-04-17 15:40:13*
+
 **move to next release version**
 
 
@@ -51,7 +70,7 @@
 [785c31b31785d2f](https://github.com/bsorrentino/maven-annotation-plugin/commit/785c31b31785d2f) bsorrentino *2020-03-02 19:59:10*
 
 
-###  [#80](https://github.com/bsorrentino/maven-annotation-plugin/issues/80) How to exclude module-info.java file?    *work in progress*  
+###  [#80](https://github.com/bsorrentino/maven-annotation-plugin/issues/80) How to exclude module-info.java file?  
 
 **issue #80**
 
diff --git a/README.md b/README.md
index ee8518e..db96c39 100644
--- a/README.md
+++ b/README.md
@@ -25,21 +25,15 @@ This plugin could be considered the 'alter ego' of maven apt plugin http://mojo.
 
 * [ANNOTATION PROCESSING 101](http://hannesdorfmann.com/annotation-processing/annotationprocessing101)
 
-
-## Snapshot
-
- Date  | Info   
---- | ---
-Currently | **[Release 4.0-SNAPSHOT](https://oss.sonatype.org/content/repositories/snapshots/org/bsc/maven/maven-processor-plugin/4.0-SNAPSHOT/)**  | available from  **[MAVEN CENTRAL REPO]** |
-
 ## Releases
 
  Date  | Info   
 --- | ---
+
+**Jul 18, 2020** | [Release 4.0](https://github.com/bsorrentino/maven-annotation-plugin/releases/tag/v4.0)
 **Apr 17, 2020** | [Release 4.0-rc1](https://github.com/bsorrentino/maven-annotation-plugin/releases/tag/v4.0-rc1)
 **Mar 02, 2020** | [Release 4.0-beta1](https://github.com/bsorrentino/maven-annotation-plugin/releases/tag/v4.0-beta1)
 
-
 ## History
 
 
diff --git a/pom.xml b/pom.xml
index 1bb5c2c..cf52ba2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,11 @@
   <groupId>org.bsc.maven</groupId>
   <artifactId>maven-processor-plugin-parent</artifactId>
   <packaging>pom</packaging>
+<<<<<<< HEAD
   <version>4.0-SNAPSHOT</version>
+=======
+  <version>4.0</version>
+>>>>>>> release/4.0
   <name>MAVEN PROCESSOR PLUGIN PARENT</name>
   <description>A maven plugin to process annotation for jdk6 at compile time
 
diff --git a/processor/pom.xml b/processor/pom.xml
index b43e573..6e3e0e6 100644
--- a/processor/pom.xml
+++ b/processor/pom.xml
@@ -13,7 +13,11 @@ This plugin could be considered the 'alter ego' of maven apt plugin http://mojo.
   <parent>
       <groupId>org.bsc.maven</groupId>
       <artifactId>maven-processor-plugin-parent</artifactId>
+<<<<<<< HEAD
       <version>4.0-SNAPSHOT</version>
+=======
+      <version>4.0</version>
+>>>>>>> release/4.0
   </parent>
 
   <properties>
diff --git a/processor/src/main/java/org/bsc/maven/plugin/processor/AnnotationProcessorCompiler.java b/processor/src/main/java/org/bsc/maven/plugin/processor/AnnotationProcessorCompiler.java
index 3174948..6d52b2f 100644
--- a/processor/src/main/java/org/bsc/maven/plugin/processor/AnnotationProcessorCompiler.java
+++ b/processor/src/main/java/org/bsc/maven/plugin/processor/AnnotationProcessorCompiler.java
@@ -296,7 +296,7 @@ private AnnotationProcessorCompiler( Toolchain toolchain,
     }
     
     
-    private void execute(   final Iterable<String> options, 
+    private boolean execute(   final Iterable<String> options,
                             final Iterable<? extends JavaFileObject> compilationUnits,
                             final Writer w ) throws Exception 
     {
@@ -389,6 +389,8 @@ else if( "--release".equals(option) ) {
         result = PlexusJavaCompilerWithOutput.INSTANCE.performCompile(javacConf);
         
         out.println( result.toString() ); out.flush();
+
+        return result.isSuccess();
     }
     
     @Override
@@ -420,8 +422,7 @@ public void addModules(Iterable<String> moduleNames) {
             @Override
             public Boolean call() {
                 try {
-                    execute(options, compilationUnits, out);
-                    return true;
+                    return execute(options, compilationUnits, out);
                 } catch (final Exception ex) {
                     diagnosticListener.report( new Diagnostic<JavaFileObject>() {
                         @Override
diff --git a/utils/pom.xml b/utils/pom.xml
index 7a5d645..e71ac04 100644
--- a/utils/pom.xml
+++ b/utils/pom.xml
@@ -31,7 +31,11 @@
     <parent>
         <groupId>org.bsc.maven</groupId>
         <artifactId>maven-processor-plugin-parent</artifactId>
+<<<<<<< HEAD
         <version>4.0-SNAPSHOT</version>
+=======
+        <version>4.0</version>
+>>>>>>> release/4.0
     </parent>
 
     <properties>