diff --git a/AppThinker/app.properties b/AppThinker/app.properties
new file mode 100644
index 0000000..f15df0d
--- /dev/null
+++ b/AppThinker/app.properties
@@ -0,0 +1,2 @@
+#Sat Dec 19 19:04:03 CET 2020
+isFirstLaunch=true
diff --git a/AppThinker/src/AboutWindow.java b/AppThinker/src/AboutWindow.java
new file mode 100644
index 0000000..25a54c2
--- /dev/null
+++ b/AppThinker/src/AboutWindow.java
@@ -0,0 +1,114 @@
+import javafx.scene.control.TextFormatter;
+
+import javax.imageio.ImageIO;
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.IOException;
+import java.net.URISyntaxException;
+import java.net.URL;
+
+/**
+ * Fenêtre contenant les informations du logiciel
+ */
+public class AboutWindow extends JDialog {
+
+    /**
+     * Constructeur - Crée une fenêtre A propos
+     */
+    public AboutWindow(){
+
+        //Paramétrage de la fenêtre
+        this.setTitle("About AppThinker");
+        this.setModal(true);
+        this.setSize(new Dimension(800, 375));
+        Image img = null;
+        try { img = ImageIO.read(AppThinker.class.getResource("img/logoAppThinker.png")); } catch (Exception ex) { }
+        this.setIconImage(img);
+        this.setResizable(false);
+        this.setLocationRelativeTo(null);
+        this.setLayout(new BorderLayout());
+
+        JPanel panel = new JPanel(){
+            @Override
+            protected void paintComponent(Graphics g) {
+                super.paintComponent(g);
+                Graphics2D g2 = (Graphics2D) g;
+                RenderingHints rh = new RenderingHints(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
+                g2.setRenderingHints(rh);
+                Image img = null;
+                try { img = ImageIO.read(AppThinker.class.getResource("img/logoAppThinker.png")); } catch (Exception ex) { }
+                g2.drawImage(img, 0, 20, 300, 300, this);
+                /*Informations du logiciel*/
+                g2.setColor(new Color(63, 169, 245));
+                g2.setFont(new Font("Arial", Font.BOLD, 40));
+                g2.drawString("AppThinker", 305, 45);
+                g2.setFont(new Font("Arial", Font.PLAIN, 20));
+                g2.drawString("Make your ideas come true", 305, 80);
+                g2.setFont(new Font("Arial", Font.PLAIN, 14));
+                g2.drawString("> Version : " + AppThinker.version, 305, 140);
+                g2.drawString("> Editing date : " + AppThinker.dateVersion, 305, 165);
+                g2.drawString("> Developer : " + AppThinker.developer, 305, 190);
+                g2.drawString(">", 305, 215);
+                g2.drawString(">", 305, 240);
+                g2.drawString(">", 305, 265);
+                g2.drawString(">", 305, 290);
+            }
+        };
+
+        panel.setLayout(null);
+        JButton updates = new JButton("Check for updates");
+        updates.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                //Ouverture du lien de téléchargement
+                try {
+                    Desktop.getDesktop().browse(new URL("https://insset-my.sharepoint.com/:f:/g/personal/valentin_boulanger_insset_onmicrosoft_com/En4LybbeF2ZMpeSiesh_Af8BX3Fl1aDzTUWyw4dtQzJaag").toURI());
+                } catch (URISyntaxException | IOException ex) { }
+            }
+        });
+        panel.add(updates);
+        updates.setBounds(320, 200, 250, 20);
+
+        JButton changelog = new JButton("View Changelog");
+        changelog.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                ChangelogWindow changelog = new ChangelogWindow();
+            }
+        });
+        panel.add(changelog);
+        changelog.setBounds(320, 225, 250, 20);
+
+        JButton ideas = new JButton("Add your ideas to the software !");
+        ideas.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                //Ouverture du lien de téléchargement
+                try {
+                    Desktop.getDesktop().browse(new URL("https://forms.gle/WG32HT947MKqdzhbA").toURI());
+                } catch (URISyntaxException | IOException ex) { }
+            }
+        });
+        panel.add(ideas);
+        ideas.setBounds(320, 250, 250, 20);
+
+        JButton donation = new JButton("Make a donation - Thanks !");
+        donation.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                //Ouverture du lien de téléchargement
+                try {
+                    Desktop.getDesktop().browse(new URL("https://www.paypal.com/paypalme/valentinboulanger").toURI());
+                } catch (URISyntaxException | IOException ex) { }
+            }
+        });
+        panel.add(donation);
+        donation.setBounds(320, 275, 250, 20);
+
+        this.getContentPane().add(panel);
+
+        this.setVisible(true);
+    }
+}
diff --git a/AppThinker/src/AppThinker.java b/AppThinker/src/AppThinker.java
index 83aba20..1c7986b 100644
--- a/AppThinker/src/AppThinker.java
+++ b/AppThinker/src/AppThinker.java
@@ -1,6 +1,9 @@
 import javax.swing.*;
 import javax.swing.filechooser.FileNameExtensionFilter;
 import java.io.*;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Properties;
 
 /**
  * La classe principale du logiciel AppThinker.
@@ -8,6 +11,13 @@ import java.io.*;
  */
 public class AppThinker {
     //JavaDoc tags : @param @return @throws @author @version @see @since @serial @deprecated
+
+    public static String version = "1.0.0-dev5";
+    public static String dateVersion = "18/12/2020";
+    public static List<String> changelog;
+    public static String developer = "V. BOULANGER";
+    public static Properties appProperties = new Properties();
+
     private static AppThinkerWindow _window;
 
     /**
@@ -16,10 +26,24 @@ public class AppThinker {
      * @throws InterruptedException Interruption du thread lors de la pause du splashscreen.
      */
     public static void main(String[] args) throws InterruptedException {
+        //Création de la liste des modifications de la version actuelle
+        changelog = new ArrayList<String>();
+        changelog.add("Fenêtre A propos et fenêtre de changelog");
+        changelog.add("2ème note de version");
+
         AppThinkerSplashscreen splash = new AppThinkerSplashscreen();
+        //Récupération des paramètres du logiciel
+        loadConfiguration();
         Thread.sleep(3000);
         splash.dispose();
+
         _window = new AppThinkerWindow();
+        //Si le logiciel s'ouvre pour la 1ère fois, on affiche la fenêtre de changelog
+        if(appProperties.getProperty("isFirstLaunch").equals("true")) {
+            appProperties.setProperty("isFirstLaunch", "false");
+            storeConfiguration();
+            ChangelogWindow changelog = new ChangelogWindow();
+        }
     }
 
     /**
@@ -29,4 +53,43 @@ public class AppThinker {
     public static AppThinkerWindow getWindow(){
         return _window;
     }
+
+    public static void loadConfiguration(){
+        InputStream input = null;
+        try {
+            input = new FileInputStream("app.properties");
+            //Chargement des préférences du logiciel
+            appProperties.load(input);
+        } catch (final IOException ex) {
+            ex.printStackTrace();
+        } finally {
+            if (input != null) {
+                try {
+                    input.close();
+                } catch (final IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    public static void storeConfiguration(){
+        OutputStream output = null;
+        try {
+            output = new FileOutputStream("app.properties");
+            //Enregistrement des propriétés du logiciel
+            appProperties.store(output, null);
+
+        } catch (final IOException io) {
+            io.printStackTrace();
+        } finally {
+            if (output != null) {
+                try {
+                    output.close();
+                } catch (final IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
 }
diff --git a/AppThinker/src/AppThinkerMenuBar.java b/AppThinker/src/AppThinkerMenuBar.java
index 6a49122..fb2662f 100644
--- a/AppThinker/src/AppThinkerMenuBar.java
+++ b/AppThinker/src/AppThinkerMenuBar.java
@@ -1,6 +1,10 @@
 import javax.swing.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.awt.Desktop;
+import java.io.IOException;
+import java.net.URISyntaxException;
+import java.net.URL;
 
 /**
  * Affiche une barre de menu en entête de la fenêtre.
@@ -101,9 +105,24 @@ public class AppThinkerMenuBar extends JMenuBar {
         _appSettings.setIcon(new ImageIcon(getClass().getResource("img/x16/settings.png")));
         _appMenu.add(_appSettings);
         _appInfo = new JMenuItem("About AppThinker");
+        _appInfo.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                AboutWindow about = new AboutWindow();
+            }
+        });
         _appInfo.setIcon(new ImageIcon(getClass().getResource("img/x16/info.png")));
         _appMenu.add(_appInfo);
-        _appChangelog = new JMenuItem("News");
+        _appChangelog = new JMenuItem("Check for updates");
+        _appChangelog.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                //Ouverture du lien de téléchargement
+                try {
+                    Desktop.getDesktop().browse(new URL("https://insset-my.sharepoint.com/:f:/g/personal/valentin_boulanger_insset_onmicrosoft_com/En4LybbeF2ZMpeSiesh_Af8BX3Fl1aDzTUWyw4dtQzJaag").toURI());
+                } catch (URISyntaxException | IOException ex) { }
+            }
+        });
         _appChangelog.setIcon(new ImageIcon(getClass().getResource("img/x16/news.png")));
         _appMenu.add(_appChangelog);
 
diff --git a/AppThinker/src/ChangelogWindow.java b/AppThinker/src/ChangelogWindow.java
new file mode 100644
index 0000000..a94ee35
--- /dev/null
+++ b/AppThinker/src/ChangelogWindow.java
@@ -0,0 +1,71 @@
+import javax.imageio.ImageIO;
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.IOException;
+import java.net.URISyntaxException;
+import java.net.URL;
+
+/**
+ * Fenêtre d'affichage de la version actuelle et des modifications apportées.
+ */
+public class ChangelogWindow extends JDialog{
+
+    public ChangelogWindow(){
+        //Paramétrage de la fenêtre
+        this.setTitle("Version " + AppThinker.version);
+        this.setModal(true);
+        this.setSize(new Dimension(800, 375));
+        Image img = null;
+        try { img = ImageIO.read(AppThinker.class.getResource("img/logoAppThinker.png")); } catch (Exception ex) { }
+        this.setIconImage(img);
+        this.setResizable(false);
+        this.setLocationRelativeTo(null);
+        this.setLayout(new BorderLayout());
+
+        JPanel panel = new JPanel(){
+            @Override
+            protected void paintComponent(Graphics g) {
+                super.paintComponent(g);
+                Graphics2D g2 = (Graphics2D) g;
+                RenderingHints rh = new RenderingHints(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
+                g2.setRenderingHints(rh);
+                Image img = null;
+                try { img = ImageIO.read(AppThinker.class.getResource("img/logoAppThinker.png")); } catch (Exception ex) { }
+                g2.drawImage(img, 0, 20, 300, 300, this);
+                /*Informations du logiciel*/
+                g2.setColor(new Color(63, 169, 245));
+                g2.setFont(new Font("Arial", Font.BOLD, 40));
+                g2.drawString("Thanks for downloading AppThinker !", 50, 45);
+                g2.setFont(new Font("Arial", Font.PLAIN, 20));
+                g2.drawString("Version " + AppThinker.version, 305, 80);
+                g2.setFont(new Font("Arial", Font.PLAIN, 14));
+                int i = 140;
+                for(String a : AppThinker.changelog){
+                    g2.drawString("> " + a, 305, i);
+                    i += 25;
+                }
+            }
+        };
+
+        panel.setLayout(null);
+
+        JButton ideas = new JButton("Add your ideas to the software !");
+        ideas.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                //Ouverture du lien de téléchargement
+                try {
+                    Desktop.getDesktop().browse(new URL("https://forms.gle/WG32HT947MKqdzhbA").toURI());
+                } catch (URISyntaxException | IOException ex) { }
+            }
+        });
+        panel.add(ideas);
+        ideas.setBounds(305, 90, 250, 20);
+
+        this.getContentPane().add(panel);
+
+        this.setVisible(true);
+    }
+}