diff --git a/java/kotlin-extractor/src/main/kotlin/utils/versions/v_1_6_0/IrSimpleTypeImplCompat.kt b/java/kotlin-extractor/src/main/kotlin/utils/versions/v_1_6_0/IrSimpleTypeImplCompat.kt
new file mode 100644
index 00000000000..ed0ad405e29
--- /dev/null
+++ b/java/kotlin-extractor/src/main/kotlin/utils/versions/v_1_6_0/IrSimpleTypeImplCompat.kt
@@ -0,0 +1,19 @@
+package com.github.codeql.utils.versions
+
+import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
+import org.jetbrains.kotlin.ir.symbols.IrClassifierSymbol
+import org.jetbrains.kotlin.ir.types.IrSimpleType
+import org.jetbrains.kotlin.ir.types.IrTypeArgument
+import org.jetbrains.kotlin.ir.types.impl.IrSimpleTypeImpl
+
+fun codeqlIrSimpleTypeImpl(
+    classifier: IrClassifierSymbol,
+    isNullable: Boolean,
+    arguments: List<IrTypeArgument>,
+    annotations: List<IrConstructorCall>
+): IrSimpleType = IrSimpleTypeImpl(
+    classifier,
+    isNullable,
+    arguments,
+    annotations
+)
diff --git a/java/kotlin-extractor/src/main/kotlin/utils/versions/v_2_3_0-Beta2/IrSimpleTypeImplCompat.kt b/java/kotlin-extractor/src/main/kotlin/utils/versions/v_2_3_0-Beta2/IrSimpleTypeImplCompat.kt
new file mode 100644
index 00000000000..b2b4e14731c
--- /dev/null
+++ b/java/kotlin-extractor/src/main/kotlin/utils/versions/v_2_3_0-Beta2/IrSimpleTypeImplCompat.kt
@@ -0,0 +1,21 @@
+package com.github.codeql.utils.versions
+
+import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
+import org.jetbrains.kotlin.ir.symbols.IrClassifierSymbol
+import org.jetbrains.kotlin.ir.types.IrSimpleType
+import org.jetbrains.kotlin.ir.types.IrTypeArgument
+import org.jetbrains.kotlin.ir.types.SimpleTypeNullability
+import org.jetbrains.kotlin.ir.types.impl.IrSimpleTypeImpl
+
+fun codeqlIrSimpleTypeImpl(
+    classifier: IrClassifierSymbol,
+    isNullable: Boolean,
+    arguments: List<IrTypeArgument>,
+    annotations: List<IrConstructorCall>
+): IrSimpleType = IrSimpleTypeImpl(
+    classifier,
+    SimpleTypeNullability.fromHasQuestionMark(isNullable),
+    arguments,
+    annotations,
+    null  // originalKotlinType - explicitly pass null to avoid default parameter issues
+)