kdroidFilter · Oct 5, 2026 · Oct 5, 2026
diff --git a/README.md b/README.md
@@ -45,7 +45,7 @@ pluginManagement {
 ```kotlin
 // build.gradle.kts
 plugins {
-    kotlin("multiplatform") version "2.3.20"
+    kotlin("multiplatform") version "2.4.20"
     id("dev.nucleusframework.nna") version "0.1.0"
 }
 ```
@@ -63,7 +63,7 @@ kotlin {
     jvm()
 
     sourceSets {
-        val jvmMain by getting {
+        jvmMain {
             dependencies {
                 // your JVM dependencies (Compose, Ktor, etc.)
             }
@@ -341,7 +341,7 @@ calc.add(5) // works normally after exception
 
 ## Benchmarks — Native (FFM) vs Pure JVM
 
-Measured on Intel Core i5-14600 (20 cores), 45 GB RAM, Ubuntu 25.10, JDK 25 (GraalVM), Kotlin 2.3.20.
+Measured on Intel Core i5-14600 (20 cores), 45 GB RAM, Ubuntu 25.10, JDK 25 (GraalVM), Kotlin 2.4.20.
 
 **Methodology**: each benchmark runs the operation in a tight loop. 3 warmup iterations are discarded, then 5 measured iterations are averaged. "Native" creates a proxy object via FFM and calls into the Kotlin/Native shared library (.so). "JVM" runs the equivalent Kotlin/JVM code directly. Ratio = native/jvm (>1 = native slower due to FFM overhead). Memory is measured via `Runtime.totalMemory() - freeMemory()` before/after with explicit GC.
 
@@ -488,7 +488,7 @@ my-app/
 
 ```kotlin
 plugins {
-    kotlin("multiplatform") version "2.3.20"
+    kotlin("multiplatform") version "2.4.20"
     id("dev.nucleusframework.nna")
 }
 
@@ -508,9 +508,9 @@ kotlinNativeExport {
 
 ```kotlin
 plugins {
-    kotlin("multiplatform") version "2.3.20"
-    id("org.jetbrains.compose") version "1.10.2"
-    id("org.jetbrains.kotlin.plugin.compose") version "2.3.20"
+    kotlin("multiplatform") version "2.4.20"
+    id("org.jetbrains.compose") version "1.12.1"
+    id("org.jetbrains.kotlin.plugin.compose") version "2.4.20"
     id("io.github.kdroidfilter.nucleus") version "1.7.2"
 }
 
@@ -519,7 +519,7 @@ kotlin {
     jvm()
 
     sourceSets {
-        val jvmMain by getting {
+        jvmMain {
             dependencies {
                 implementation(compose.desktop.currentOs)
                 implementation(project(":native"))
@@ -544,7 +544,7 @@ You can combine the plugin with Kotlin/Native cinterop to wrap native C librarie
 // build.gradle.kts
 kotlin {
     linuxX64().compilations["main"].cinterops {
-        val libnotify by creating {
+        create("libnotify") {
             defFile(project.file("src/nativeInterop/cinterop/libnotify.def"))
         }
     }
@@ -632,7 +632,7 @@ Data classes are supported as value types (field marshalling), and `commonMain`
 
 ## Requirements
 
-- **Kotlin** 2.3.20+
+- **Kotlin** 2.4.20+
 - **Gradle** 9.1+ (for JDK 25 support)
 - **JDK** 22+ (FFM stable since JDK 22 / JEP 454), recommended 25
 - **Kotlin/Native** toolchain (bundled with KMP plugin)

diff --git a/examples/benchmark/build.gradle.kts b/examples/benchmark/build.gradle.kts
@@ -17,7 +17,7 @@ kotlin {
     jvm()
 
     sourceSets {
-        val jvmTest by getting {
+        jvmTest {
             dependencies {
                 implementation(kotlin("test"))
             }

diff --git a/examples/calculator/build.gradle.kts b/examples/calculator/build.gradle.kts
@@ -2,8 +2,9 @@ import io.github.kdroidfilter.nucleus.desktop.application.dsl.TargetFormat
 
 plugins {
     kotlin("multiplatform")
-    id("org.jetbrains.compose") version "1.10.2"
-    id("org.jetbrains.kotlin.plugin.compose") version "2.3.20"
+    id("org.jetbrains.compose") version "1.12.1"
+    id("org.jetbrains.kotlin.plugin.compose") version "2.4.20"
+    id("org.jetbrains.compose.hot-reload") version "1.3.0-beta01"
     id("io.github.kdroidfilter.nucleus") version "1.7.2"
     id("dev.nucleusframework.nna")
 }
@@ -23,14 +24,14 @@ kotlin {
     jvm()
 
     sourceSets {
-        val jvmMain by getting {
+        jvmMain {
             dependencies {
                 implementation(compose.desktop.currentOs)
-                implementation(compose.runtime)
+                implementation("org.jetbrains.compose.runtime:runtime:1.12.1")
                 implementation("io.github.kdroidfilter:nucleus.graalvm-runtime:1.7.2")
             }
         }
-        val jvmTest by getting {
+        jvmTest {
             dependencies {
                 implementation(kotlin("test"))
                 implementation(kotlin("test-junit5"))

diff --git a/examples/calculator/src/jvmTest/kotlin/com/example/calculator/InheritanceTest.kt b/examples/calculator/src/jvmTest/kotlin/com/example/calculator/InheritanceTest.kt
@@ -2,6 +2,7 @@ package com.example.calculator
 
 import kotlin.test.Test
 import kotlin.test.assertEquals
+import kotlin.test.assertFalse
 import kotlin.test.assertTrue
 import kotlin.test.assertNotEquals
 import java.lang.Math.PI
@@ -583,13 +584,13 @@ class InheritanceTest {
 
     @Test fun `Circle is not Rectangle`() {
         Circle(2.0).use { circle ->
-            assertTrue(circle !is Rectangle)
+            assertFalse(Rectangle::class.isInstance(circle))
         }
     }
 
     @Test fun `Cube is not Cylinder`() {
         Cube(2.0).use { cube ->
-            assertTrue(cube !is Cylinder)
+            assertFalse(Cylinder::class.isInstance(cube))
         }
     }
 

diff --git a/examples/calculator/src/jvmTest/kotlin/com/example/calculator/InterfaceTest.kt b/examples/calculator/src/jvmTest/kotlin/com/example/calculator/InterfaceTest.kt
@@ -152,7 +152,7 @@ class InterfaceTest {
 
     @Test fun `Scale - does not implement Printable`() {
         Scale(10.0).use { scale ->
-            assertFalse(scale is Printable)
+            assertFalse(Printable::class.isInstance(scale))
         }
     }
 
@@ -440,7 +440,7 @@ class InterfaceTest {
                     assertTrue(ruler is Measurable)
                     assertTrue(ruler is Printable)
                     assertTrue(scale is Measurable)
-                    assertFalse(scale is Printable)
+                    assertFalse(Printable::class.isInstance(scale))
                 }
             }
         }

diff --git a/examples/systeminfo/build.gradle.kts b/examples/systeminfo/build.gradle.kts
@@ -2,8 +2,9 @@ import io.github.kdroidfilter.nucleus.desktop.application.dsl.TargetFormat
 
 plugins {
     kotlin("multiplatform")
-    id("org.jetbrains.compose") version "1.10.2"
-    id("org.jetbrains.kotlin.plugin.compose") version "2.3.20"
+    id("org.jetbrains.compose") version "1.12.1"
+    id("org.jetbrains.kotlin.plugin.compose") version "2.4.20"
+    id("org.jetbrains.compose.hot-reload") version "1.3.0-beta01"
     id("io.github.kdroidfilter.nucleus") version "1.7.2"
     id("dev.nucleusframework.nna")
 }
@@ -41,13 +42,13 @@ kotlin {
     // cinterop with libnotify (real Linux native notifications via D-Bus)
     if (hostOs == "Linux") {
         nativeTarget.compilations["main"].cinterops {
-            val libnotify by creating {
+            create("libnotify") {
                 defFile(project.file("src/nativeInterop/cinterop/libnotify.def"))
             }
-            val systray by creating {
+            create("systray") {
                 defFile(project.file("src/nativeInterop/cinterop/systray.def"))
             }
-            val gio by creating {
+            create("gio") {
                 defFile(project.file("src/nativeInterop/cinterop/gio.def"))
             }
 
@@ -57,7 +58,7 @@ kotlin {
     // cinterop with Win32 Shell API (tray icon + toast notifications)
     if (hostOs.startsWith("Windows")) {
         nativeTarget.compilations["main"].cinterops {
-            val wintray by creating {
+            create("wintray") {
                 defFile(project.file("src/nativeInterop/cinterop/wintray.def"))
             }
         }
@@ -66,15 +67,15 @@ kotlin {
     jvm()
 
     sourceSets {
-        val jvmMain by getting {
+        jvmMain {
             dependencies {
                 implementation(compose.desktop.currentOs)
-                implementation(compose.runtime)
+                implementation("org.jetbrains.compose.runtime:runtime:1.12.1")
                 implementation("org.jetbrains.kotlinx:kotlinx-coroutines-swing:1.10.2")
                 implementation("io.github.kdroidfilter:nucleus.graalvm-runtime:1.7.2")
             }
         }
-        val jvmTest by getting {
+        jvmTest {
             dependencies {
                 implementation(kotlin("test"))
             }

diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
@@ -1,5 +1,5 @@
 [versions]
-kotlin = "2.3.20"
+kotlin = "2.4.20"
 pluginPublish = "2.1.0"
 versionCheck = "0.53.0"
 kotlinx-coroutines = "1.11.0"

diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
@@ -1,7 +1,9 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.8.0-all.zip
 networkTimeout=10000
+retries=0
+retryBackOffMs=500
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew