Add a kotlin_stdlib_version property to gradle.properties

build.gradle.kts

@@ -93,7 +93,7 @@ allprojects {
     apply(plugin = "java")
     apply(plugin = "architectury-plugin")
     dependencies {
-        implementation(kotlin("stdlib-jdk8", "1.4.30"))
+        implementation(kotlin("stdlib-jdk8", rootProject.property("kotlin_stdlib_version").toString() + ".0"))
     }
     java {
         targetCompatibility = JavaVersion.VERSION_1_8
@@ -119,7 +119,7 @@ allprojects {
                 freeCompilerArgs = listOf("-Xjvm-default=all", "-Xlambdas=indy")
                 jvmTarget = "1.8"
                 languageVersion = "1.5"
-                apiVersion = "1.4"
+                apiVersion = rootProject.property("kotlin_stdlib_version").toString()
             }
         }
         withType(JavaCompile::class) {

gradle.properties

@@ -9,6 +9,7 @@ org.gradle.vfs.watch=true
 
 minecraft=1.16.5
 forge_version=36.1
+kotlin_stdlib_version=1.4
 fabric_loader_version=0.11.3
 fabric_resource_loader_version=0.2.5+059ea8667c
 fabric_rendering_api_version=1.1.2+346247d77c