Update versions and migrate to Kotlin Compose so that app compiles successfully, otherwise was in a stuck failed state due to deprecations.

app/build.gradle.kts

@@ -1,18 +1,19 @@
 plugins {
     alias(libs.plugins.androidApplication)
-    alias(libs.plugins.jetbrainsKotlinAndroid)
+    //alias(libs.plugins.jetbrainsKotlinAndroid)
+    alias(libs.plugins.kotlinCompose)
 }
 
 android {
     namespace = "com.hyperling.tictactoe"
-    compileSdk = 36
+    compileSdk = 37
 
     defaultConfig {
         applicationId = "com.hyperling.tictactoe"
-        minSdk = 21
-        targetSdk = 36
-        versionCode = 4
-        versionName = "1.1.0"
+        minSdk = 23
+        targetSdk = 37
+        versionCode = 5
+        versionName = "1.1.1"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {
@@ -23,15 +24,16 @@ android {
     buildTypes {
         release {
             isMinifyEnabled = true
-            proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
+            isShrinkResources = true
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
         }
     }
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_1_8
-        targetCompatibility = JavaVersion.VERSION_1_8
-    }
-    kotlinOptions {
-        jvmTarget = "1.8"
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
     }
     buildFeatures {
         compose = true
@@ -62,4 +64,10 @@ dependencies {
     androidTestImplementation(libs.androidx.ui.test.junit4)
     debugImplementation(libs.androidx.ui.tooling)
     debugImplementation(libs.androidx.ui.test.manifest)
+
+    // 2026-11-01 - Fix for "unresolved reference" on these in MainActivity:
+    //import androidx.compose.material.icons.Icons
+    //import androidx.compose.material.icons.rounded.Close
+    implementation("androidx.compose.material:material-icons-core")
+    implementation("androidx.compose.material:material-icons-extended")
 }

app/src/main/AndroidManifest.xml

@@ -10,8 +10,7 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_icon_ttt"
         android:supportsRtl="true"
-        android:theme="@style/Theme.TicTacToe"
-        tools:targetApi="31">
+        android:theme="@style/Theme.TicTacToe">
         <activity
             android:name=".MainActivity"
             android:exported="true"
@@ -27,4 +26,4 @@
         </activity>
     </application>
 
-</manifest>
+</manifest>