diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index f138e19..5397eda 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -12,8 +12,8 @@ android {
         applicationId = "com.gronod.esp32aldldashboard"
         minSdk = 24
         targetSdk = 36
-        versionCode = 1
-        versionName = "1.0"
+        versionCode = 2
+        versionName = "1.0.0"
     }
 
     signingConfigs {
@@ -31,7 +31,7 @@ android {
     buildTypes {
         release {
             signingConfig = signingConfigs.getByName("release")
-            isMinifyEnabled = false
+            isMinifyEnabled = true
             proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
         }
     }
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
new file mode 100644
index 0000000..bda9751
--- /dev/null
+++ b/app/proguard-rules.pro
@@ -0,0 +1,43 @@
+# ProGuard rules for ESP32 ALDL Dashboard
+# Compose + Room + Kotlin Serialization + Navigation3
+
+# --- General ---
+-keepattributes *Annotation*
+-keepattributes Signature
+-keepattributes Exceptions
+-keepattributes InnerClasses
+-keepattributes EnclosingMethod
+-keepattributes SourceFile,LineNumberTable
+-renamesourcefileattribute SourceFile
+
+# --- Room ---
+-keep class * extends androidx.room.RoomDatabase
+-keep class * { @androidx.room.* <fields>; }
+-dontwarn androidx.room.paging.**
+
+# --- Kotlin Serialization ---
+-keep class kotlinx.serialization.** { *; }
+-keepclassmembers class * {
+    @kotlinx.serialization.SerialName <fields>;
+    @kotlinx.serialization.Serializable <fields>;
+}
+-if @kotlinx.serialization.Serializable class **
+-keepclassmembers class <1> {
+   static **$$serializerInstance;
+   kotlinx.serialization.KSerializer serializer(...);
+}
+
+# --- Compose / Navigation ---
+-keep class androidx.navigation3.** { *; }
+-keep class * implements androidx.navigation3.NavigationUi { *; }
+-keepclassmembers class * {
+    @androidx.compose.runtime.Composable <methods>;
+}
+
+# --- DataStore / Preferences ---
+-keep class androidx.datastore.** { *; }
+-keep class * implements androidx.datastore.core.Serializer { *; }
+
+# --- Application classes (auto-generated, keep to be safe) ---
+-keep class com.gronod.esp32aldldashboard.** { *; }
+-keepclassmembers class com.gronod.esp32aldldashboard.** { *; }