diff --git a/build.gradle b/build.gradle
index 7ab03725..c84d3c74 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,7 +8,7 @@ buildscript
 
   dependencies
   {
-    classpath "com.android.tools.build:gradle:2.3.3"
+    classpath "com.android.tools.build:gradle:3.0.0"
     classpath "com.jfrog.bintray.gradle:gradle-bintray-plugin:1.7.3"
   }
 }
@@ -18,10 +18,7 @@ allprojects
   repositories
   {
     jcenter()
-    maven
-    {
-      url "https://maven.google.com"
-    }
+    google()
   }
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 1bce4111..0f504fef 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Tue Mar 21 10:12:43 CET 2017
+#Thu Nov 16 15:09:27 CET 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/library/build.gradle b/library/build.gradle
index 7ce54bfa..08cae5bf 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -5,21 +5,21 @@ apply plugin: "maven-publish"
 
 ext
 {
-  appCompatVersion="25.4.0"
+  appCompatVersion="27.0.1"
 }
 
 android
 {
-  compileSdkVersion 25
-  buildToolsVersion "25.0.3"
+  compileSdkVersion 26
+  buildToolsVersion "26.0.2"
 
   defaultConfig
   {
-    minSdkVersion 9
-    targetSdkVersion 25
+    minSdkVersion 14
+    targetSdkVersion 26
 
-    versionCode 20
-    versionName "2.5.3"
+    versionCode 21
+    versionName "2.5.4"
   }
 
   buildTypes
@@ -36,11 +36,11 @@ android
 dependencies
 {
   //Android
-  compile("com.android.support:appcompat-v7:$appCompatVersion")
-  compile("com.android.support:preference-v7:$appCompatVersion")
+  implementation("com.android.support:appcompat-v7:$appCompatVersion")
+  implementation("com.android.support:preference-v7:$appCompatVersion")
 
-  testCompile("junit:junit:4.0")
-  testCompile("org.json:json:20090211")
+  testImplementation("junit:junit:4.0")
+  testImplementation("org.json:json:20090211")
 }
 
 task sourcesJar(type: Jar) {
@@ -139,7 +139,7 @@ bintray
     repo = "maven"
     name = "droid4me"
     userOrg = "smartnsoft"
-    licenses = ["LGPL-2.1"]
+    licenses = ["MIT"]
     vcsUrl = "https://github.com/smartnsoft/droid4me.git"
     publish = true
 
diff --git a/library/src/main/java/com/smartnsoft/droid4me/AndroidLifeCycle.java b/library/src/main/java/com/smartnsoft/droid4me/AndroidLifeCycle.java
index d937abc3..d55d8a2a 100644
--- a/library/src/main/java/com/smartnsoft/droid4me/AndroidLifeCycle.java
+++ b/library/src/main/java/com/smartnsoft/droid4me/AndroidLifeCycle.java
@@ -28,6 +28,7 @@
  * @author Édouard Mercier
  * @since 2012.06.21
  */
+@Deprecated
 public interface AndroidLifeCycle
 {
 
diff --git a/library/src/main/java/com/smartnsoft/droid4me/app/ActivityController.java b/library/src/main/java/com/smartnsoft/droid4me/app/ActivityController.java
index 0fee6a2f..f8211225 100644
--- a/library/src/main/java/com/smartnsoft/droid4me/app/ActivityController.java
+++ b/library/src/main/java/com/smartnsoft/droid4me/app/ActivityController.java
@@ -155,6 +155,7 @@ public interface SystemServiceProvider
      * @return the desired service, or {@code null} if no service corresponding to the provided {@code name} is available nor exists
      * @see Activity#getSystemService(String)
      */
+    @Deprecated
     Object getSystemService(Activity activity, String name, Object defaultService);
 
   }
@@ -660,6 +661,7 @@ public void registerInterceptor(ActivityController.Interceptor interceptor)
    * @return the service or {@code null} if the name does not exist
    * @see #registerSystemServiceProvider(ActivityController.SystemServiceProvider)
    */
+  @Deprecated
   public Object getSystemService(Activity activity, String name, Object defaultService)
   {
     if (systemServiceProvider != null)
diff --git a/library/src/main/java/com/smartnsoft/droid4me/app/Droid4mizer.java b/library/src/main/java/com/smartnsoft/droid4me/app/Droid4mizer.java
index dfc43b91..920baed9 100644
--- a/library/src/main/java/com/smartnsoft/droid4me/app/Droid4mizer.java
+++ b/library/src/main/java/com/smartnsoft/droid4me/app/Droid4mizer.java
@@ -586,6 +586,7 @@ public void onActivityResult(int requestCode, int resultCode, Intent data)
    * @return the service or {@code null} if the name does not exist
    * @see Context#getSystemService(String)
    */
+  @Deprecated
   public Object getSystemService(String name, Object defaultService)
   {
     return ActivityController.getInstance().getSystemService(activity, name, defaultService);
diff --git a/library/src/main/java/com/smartnsoft/droid4me/app/SmartActivity.java b/library/src/main/java/com/smartnsoft/droid4me/app/SmartActivity.java
index c8e68bdc..b3fe0efb 100644
--- a/library/src/main/java/com/smartnsoft/droid4me/app/SmartActivity.java
+++ b/library/src/main/java/com/smartnsoft/droid4me/app/SmartActivity.java
@@ -139,12 +139,6 @@ protected void onDestroy()
     }
   }
 
-  @Override
-  public Object getSystemService(String name)
-  {
-    return droid4mizer.getSystemService(name, super.getSystemService(name));
-  }
-
   @Override
   public void onAttachedToWindow()
   {
diff --git a/library/src/main/java/com/smartnsoft/droid4me/app/SmartPreferenceActivity.java b/library/src/main/java/com/smartnsoft/droid4me/app/SmartPreferenceActivity.java
index 313570ee..88ac3b76 100644
--- a/library/src/main/java/com/smartnsoft/droid4me/app/SmartPreferenceActivity.java
+++ b/library/src/main/java/com/smartnsoft/droid4me/app/SmartPreferenceActivity.java
@@ -155,12 +155,6 @@ protected void onDestroy()
     }
   }
 
-  @Override
-  public Object getSystemService(String name)
-  {
-    return droid4mizer.getSystemService(name, super.getSystemService(name));
-  }
-
   @Override
   public void onAttachedToWindow()
   {
diff --git a/library/src/main/java/com/smartnsoft/droid4me/support/v4/app/SmartFragmentActivity.java b/library/src/main/java/com/smartnsoft/droid4me/support/v4/app/SmartFragmentActivity.java
index 47f3f506..68bb3fbe 100644
--- a/library/src/main/java/com/smartnsoft/droid4me/support/v4/app/SmartFragmentActivity.java
+++ b/library/src/main/java/com/smartnsoft/droid4me/support/v4/app/SmartFragmentActivity.java
@@ -22,14 +22,12 @@
 
 package com.smartnsoft.droid4me.support.v4.app;
 
-import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.os.Bundle;
 import android.os.Handler;
 import android.support.v4.app.FragmentActivity;
-import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
 
@@ -147,18 +145,6 @@ protected void onDestroy()
     }
   }
 
-  @Override
-  public LayoutInflater getLayoutInflater()
-  {
-    return (LayoutInflater) droid4mizer.getSystemService(Context.LAYOUT_INFLATER_SERVICE, super.getLayoutInflater());
-  }
-
-  @Override
-  public Object getSystemService(String name)
-  {
-    return droid4mizer.getSystemService(name, super.getSystemService(name));
-  }
-
   @Override
   public void onAttachedToWindow()
   {
diff --git a/library/src/main/java/com/smartnsoft/droid4me/support/v7/app/SmartAppCompatActivity.java b/library/src/main/java/com/smartnsoft/droid4me/support/v7/app/SmartAppCompatActivity.java
index 9ef83923..bc2c9310 100644
--- a/library/src/main/java/com/smartnsoft/droid4me/support/v7/app/SmartAppCompatActivity.java
+++ b/library/src/main/java/com/smartnsoft/droid4me/support/v7/app/SmartAppCompatActivity.java
@@ -22,14 +22,12 @@
 
 package com.smartnsoft.droid4me.support.v7.app;
 
-import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.os.Bundle;
 import android.os.Handler;
 import android.support.v7.app.AppCompatActivity;
-import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
 
@@ -147,25 +145,6 @@ protected void onDestroy()
     }
   }
 
-  @Override
-  public LayoutInflater getLayoutInflater()
-  {
-    return (LayoutInflater) droid4mizer.getSystemService(Context.LAYOUT_INFLATER_SERVICE, super.getLayoutInflater());
-  }
-
-  @Override
-  public Object getSystemService(String name)
-  {
-    if (Context.LAYOUT_INFLATER_SERVICE.equals(name) == true && getWindow() != null)
-    {
-      return droid4mizer.getSystemService(name, getWindow().getLayoutInflater());
-    }
-    else
-    {
-      return droid4mizer.getSystemService(name, super.getSystemService(name));
-    }
-  }
-
   @Override
   public void onAttachedToWindow()
   {
diff --git a/sample/build.gradle b/sample/build.gradle
index b16b6d61..e7628eef 100644
--- a/sample/build.gradle
+++ b/sample/build.gradle
@@ -2,15 +2,15 @@ apply plugin: 'com.android.application'
 
 android
 {
-  compileSdkVersion 25
-  buildToolsVersion "25.0.2"
+  compileSdkVersion 26
+  buildToolsVersion "26.0.2"
 
   defaultConfig
   {
     applicationId "com.smartnsoft.sample"
 
     minSdkVersion 16
-    targetSdkVersion 25
+    targetSdkVersion 26
 
     versionCode 1
     versionName "1.0"
@@ -29,6 +29,6 @@ android
 
 dependencies
 {
-  compile ("com.android.support:appcompat-v7:25.3.0")
-  compile (project(":library"))
+  implementation ("com.android.support:appcompat-v7:27.0.1")
+  implementation (project(":library"))
 }
diff --git a/sample/src/main/java/com/smartnsoft/droid4sample/Droid4SampleSplashScreenActivity.java b/sample/src/main/java/com/smartnsoft/droid4sample/Droid4SampleSplashScreenActivity.java
index 844fe7d3..057164e6 100644
--- a/sample/src/main/java/com/smartnsoft/droid4sample/Droid4SampleSplashScreenActivity.java
+++ b/sample/src/main/java/com/smartnsoft/droid4sample/Droid4SampleSplashScreenActivity.java
@@ -59,7 +59,7 @@ protected Void onRetrieveBusinessObjectsCustom()
   {
     try
     {
-      Thread.sleep(15000);
+      Thread.sleep(2000);
     }
     catch (InterruptedException exception)
     {