diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 37f78a6af837..dbc3ce4a040f 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.4.0-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/packages/gradle-plugin/gradle/libs.versions.toml b/packages/gradle-plugin/gradle/libs.versions.toml
index c7502fcefd98..9922e5575473 100644
--- a/packages/gradle-plugin/gradle/libs.versions.toml
+++ b/packages/gradle-plugin/gradle/libs.versions.toml
@@ -1,10 +1,10 @@
 [versions]
-agp = "8.12.0"
+agp = "9.1.0"
 gson = "2.8.9"
 guava = "31.0.1-jre"
 javapoet = "1.13.0"
 junit = "4.13.2"
-kotlin = "2.1.20"
+kotlin = "2.3.0"
 assertj = "3.25.1"
 ktfmt = "0.22.0"
 
diff --git a/packages/gradle-plugin/gradle/wrapper/gradle-wrapper.properties b/packages/gradle-plugin/gradle/wrapper/gradle-wrapper.properties
index 37f78a6af837..dbc3ce4a040f 100644
--- a/packages/gradle-plugin/gradle/wrapper/gradle-wrapper.properties
+++ b/packages/gradle-plugin/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.4.0-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/packages/gradle-plugin/react-native-gradle-plugin/build.gradle.kts b/packages/gradle-plugin/react-native-gradle-plugin/build.gradle.kts
index 85dadeba0c42..8f3b931b8e43 100644
--- a/packages/gradle-plugin/react-native-gradle-plugin/build.gradle.kts
+++ b/packages/gradle-plugin/react-native-gradle-plugin/build.gradle.kts
@@ -64,7 +64,7 @@ kotlin { jvmToolchain(17) }
 
 tasks.withType<KotlinCompile>().configureEach {
   compilerOptions {
-    apiVersion.set(KotlinVersion.KOTLIN_1_8)
+    apiVersion.set(KotlinVersion.KOTLIN_2_3)
     // See comment above on JDK 11 support
     jvmTarget.set(JvmTarget.JVM_11)
     allWarningsAsErrors.set(
diff --git a/packages/gradle-plugin/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/ReactPlugin.kt b/packages/gradle-plugin/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/ReactPlugin.kt
index e7859ff6ad0b..9440eee3f3fe 100644
--- a/packages/gradle-plugin/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/ReactPlugin.kt
+++ b/packages/gradle-plugin/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/ReactPlugin.kt
@@ -234,12 +234,12 @@ class ReactPlugin : Plugin<Project> {
     if (isLibrary) {
       project.extensions.getByType(LibraryAndroidComponentsExtension::class.java).finalizeDsl { ext
         ->
-        ext.sourceSets.getByName("main").java.srcDir(generatedSrcDir.get().dir("java").asFile)
+        ext.sourceSets.getByName("main").java.directories.add(generatedSrcDir.get().dir("java").asFile.absolutePath)
       }
     } else {
       project.extensions.getByType(ApplicationAndroidComponentsExtension::class.java).finalizeDsl {
           ext ->
-        ext.sourceSets.getByName("main").java.srcDir(generatedSrcDir.get().dir("java").asFile)
+        ext.sourceSets.getByName("main").java.directories.add(generatedSrcDir.get().dir("java").asFile.absolutePath)
       }
     }
 
diff --git a/packages/gradle-plugin/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/AgpConfiguratorUtils.kt b/packages/gradle-plugin/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/AgpConfiguratorUtils.kt
index c4a7b359d542..75e917261b3b 100644
--- a/packages/gradle-plugin/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/AgpConfiguratorUtils.kt
+++ b/packages/gradle-plugin/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/AgpConfiguratorUtils.kt
@@ -9,7 +9,6 @@ package com.facebook.react.utils
 
 import com.android.build.api.variant.ApplicationAndroidComponentsExtension
 import com.android.build.api.variant.LibraryAndroidComponentsExtension
-import com.android.build.gradle.LibraryExtension
 import com.facebook.react.ReactExtension
 import com.facebook.react.utils.ProjectUtils.isEdgeToEdgeEnabled
 import com.facebook.react.utils.ProjectUtils.isHermesEnabled
@@ -82,7 +81,7 @@ internal object AgpConfiguratorUtils {
       subproject.pluginManager.withPlugin("com.android.library") {
         subproject.extensions
             .getByType(LibraryAndroidComponentsExtension::class.java)
-            .finalizeDsl { ext -> ext.buildFeatures.buildConfig = true }
+            .finalizeDsl { ext -> ext.buildFeatures { buildConfig = true } }
       }
     }
   }
@@ -114,22 +113,22 @@ internal object AgpConfiguratorUtils {
   fun configureNamespaceForLibraries(appProject: Project) {
     appProject.rootProject.allprojects { subproject ->
       subproject.pluginManager.withPlugin("com.android.library") {
-        subproject.extensions
+        val components = subproject.extensions
             .getByType(LibraryAndroidComponentsExtension::class.java)
-            .finalizeDsl { ext ->
-              if (ext.namespace == null) {
-                val android = subproject.extensions.getByType(LibraryExtension::class.java)
-                val manifestFile = android.sourceSets.getByName("main").manifest.srcFile
-
-                manifestFile
-                    .takeIf { it.exists() }
-                    ?.let { file ->
-                      getPackageNameFromManifest(file)?.let { packageName ->
-                        ext.namespace = packageName
-                      }
-                    }
-              }
-            }
+
+        components.finalizeDsl { dsl ->
+          if (dsl.namespace.isNullOrEmpty()) {
+            val manifestFile = subproject.file("src/main/AndroidManifest.xml")
+
+            manifestFile
+                .takeIf { it.exists() }
+                ?.let { file ->
+                  getPackageNameFromManifest(file)?.let { packageName ->
+                    dsl.namespace = packageName
+                  }
+                }
+          }
+        }
       }
     }
   }
diff --git a/packages/gradle-plugin/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/NdkConfiguratorUtils.kt b/packages/gradle-plugin/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/NdkConfiguratorUtils.kt
index 119c80de03c6..6374a357ddfb 100644
--- a/packages/gradle-plugin/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/NdkConfiguratorUtils.kt
+++ b/packages/gradle-plugin/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/NdkConfiguratorUtils.kt
@@ -20,10 +20,6 @@ internal object NdkConfiguratorUtils {
     project.pluginManager.withPlugin("com.android.application") {
       project.extensions.getByType(ApplicationAndroidComponentsExtension::class.java).finalizeDsl {
           ext ->
-        // We enable prefab so users can consume .so/headers from ReactAndroid and hermes-engine
-        // .aar
-        ext.buildFeatures.prefab = true
-
         // If the user has not provided a CmakeLists.txt path, let's provide
         // the default one from the framework
         if (ext.externalNativeBuild.cmake.path == null) {
diff --git a/packages/gradle-plugin/settings-plugin/build.gradle.kts b/packages/gradle-plugin/settings-plugin/build.gradle.kts
index 2fbeafd502c9..165bf38a8665 100644
--- a/packages/gradle-plugin/settings-plugin/build.gradle.kts
+++ b/packages/gradle-plugin/settings-plugin/build.gradle.kts
@@ -54,7 +54,7 @@ kotlin { jvmToolchain(17) }
 
 tasks.withType<KotlinCompile>().configureEach {
   compilerOptions {
-    apiVersion.set(KotlinVersion.KOTLIN_1_8)
+    apiVersion.set(KotlinVersion.KOTLIN_2_3)
     // See comment above on JDK 11 support
     jvmTarget.set(JvmTarget.JVM_11)
     allWarningsAsErrors.set(
diff --git a/packages/gradle-plugin/shared-testutil/build.gradle.kts b/packages/gradle-plugin/shared-testutil/build.gradle.kts
index 26173fb55578..19dd3a1333df 100644
--- a/packages/gradle-plugin/shared-testutil/build.gradle.kts
+++ b/packages/gradle-plugin/shared-testutil/build.gradle.kts
@@ -27,7 +27,7 @@ kotlin { jvmToolchain(17) }
 
 tasks.withType<KotlinCompile>().configureEach {
   compilerOptions {
-    apiVersion.set(KotlinVersion.KOTLIN_1_8)
+    apiVersion.set(KotlinVersion.KOTLIN_2_3)
     // See comment above on JDK 11 support
     jvmTarget.set(JvmTarget.JVM_11)
     allWarningsAsErrors.set(
diff --git a/packages/gradle-plugin/shared/build.gradle.kts b/packages/gradle-plugin/shared/build.gradle.kts
index 315984875ad8..87fb331634ed 100644
--- a/packages/gradle-plugin/shared/build.gradle.kts
+++ b/packages/gradle-plugin/shared/build.gradle.kts
@@ -33,7 +33,7 @@ kotlin { jvmToolchain(17) }
 
 tasks.withType<KotlinCompile>().configureEach {
   compilerOptions {
-    apiVersion.set(KotlinVersion.KOTLIN_1_8)
+    apiVersion.set(KotlinVersion.KOTLIN_2_3)
     // See comment above on JDK 11 support
     jvmTarget.set(JvmTarget.JVM_11)
     allWarningsAsErrors.set(
diff --git a/private/helloworld/android/gradle/wrapper/gradle-wrapper.properties b/private/helloworld/android/gradle/wrapper/gradle-wrapper.properties
index 37f78a6af837..dbc3ce4a040f 100644
--- a/private/helloworld/android/gradle/wrapper/gradle-wrapper.properties
+++ b/private/helloworld/android/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.4.0-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME