Lower supported KotlinVersion to 1.8 (#15)

Author: 05nelsonm

README.md

@@ -47,7 +47,7 @@ dependencies {
 [badge-license]: https://img.shields.io/badge/license-Apache%20License%202.0-blue.svg?style=flat
 
 <!-- TAG_DEPENDENCIES -->
-[badge-kotlin]: https://img.shields.io/badge/kotlin-2.2.10-blue.svg?logo=kotlin
+[badge-kotlin]: https://img.shields.io/badge/kotlin-2.2.20-blue.svg?logo=kotlin
 
 <!-- TAG_PLATFORMS -->
 [badge-platform-android]: http://img.shields.io/badge/-android-6EDB8D.svg?style=flat

build-logic/src/main/kotlin/-KmpConfigurationExtension.kt

@@ -17,6 +17,7 @@ import io.matthewnelson.kmp.configuration.extension.KmpConfigurationExtension
 import io.matthewnelson.kmp.configuration.extension.container.target.KmpConfigurationContainerDsl
 import org.gradle.api.Action
 import org.jetbrains.kotlin.gradle.ExperimentalWasmDsl
+import org.jetbrains.kotlin.gradle.dsl.KotlinVersion
 
 fun KmpConfigurationExtension.configureShared(
     java9ModuleName: String? = null,
@@ -73,6 +74,15 @@ fun KmpConfigurationExtension.configureShared(
 
         if (publish) kotlin { explicitApi() }
 
+        if (publish) kotlin {
+            @Suppress("DEPRECATION")
+            compilerOptions {
+                freeCompilerArgs.add("-Xsuppress-version-warnings")
+                apiVersion.set(KotlinVersion.KOTLIN_1_8)
+                languageVersion.set(KotlinVersion.KOTLIN_1_8)
+            }
+        }
+
         action.execute(this)
     }
 }