diff --git a/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirBlackBoxCodegenTestGenerated.java b/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirBlackBoxCodegenTestGenerated.java
index c4bb466b703..5e1c6b8c5e5 100644
--- a/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirBlackBoxCodegenTestGenerated.java
+++ b/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirBlackBoxCodegenTestGenerated.java
@@ -22799,6 +22799,12 @@ public class FirBlackBoxCodegenTestGenerated extends AbstractFirBlackBoxCodegenT
             runTest("compiler/testData/codegen/box/inlineClasses/secondaryConstructorsInsideInlineClassWithPrimitiveCarrierTypeGeneric.kt", TransformersFunctions.getReplaceOptionalJvmInlineAnnotationWithReal());
         }
 
+        @Test
+        @TestMetadata("secondaryConstructorsWithBody.kt")
+        public void testSecondaryConstructorsWithBody() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/secondaryConstructorsWithBody.kt");
+        }
+
         @Test
         @TestMetadata("simpleSecondaryConstructor.kt")
         public void testSimpleSecondaryConstructor() throws Exception {
@@ -50621,6 +50627,12 @@ public class FirBlackBoxCodegenTestGenerated extends AbstractFirBlackBoxCodegenT
             runTest("compiler/testData/codegen/box/valueClasses/overrides_typeParameters.kt");
         }
 
+        @Test
+        @TestMetadata("secondaryConstructorsWithBody.kt")
+        public void testSecondaryConstructorsWithBody() throws Exception {
+            runTest("compiler/testData/codegen/box/valueClasses/secondaryConstructorsWithBody.kt");
+        }
+
         @Test
         @TestMetadata("throwingMFVCReassignments.kt")
         public void testThrowingMFVCReassignments() throws Exception {
diff --git a/compiler/testData/codegen/box/inlineClasses/secondaryConstructorsWithBody.kt b/compiler/testData/codegen/box/inlineClasses/secondaryConstructorsWithBody.kt
new file mode 100644
index 00000000000..bc6a2425a41
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/secondaryConstructorsWithBody.kt
@@ -0,0 +1,29 @@
+// LANGUAGE: +ValueClassesSecondaryConstructorWithBody
+// TARGET_BACKEND: JVM_IR
+// CHECK_BYTECODE_LISTING
+// WITH_STDLIB
+// FIR_IDENTICAL
+
+val l = mutableListOf<Any>()
+
+@JvmInline
+value class VC(val x: Int) {
+    constructor(xD: Double): this(-xD.toInt()) {
+        l.add(xD)
+        l.add(x)
+        l.add(this)
+    }
+    
+    init {
+        l.add(x)
+        l.add(this)
+    }
+}
+
+fun box(): String {
+    val vc = VC(1)
+    require(vc == VC(-1.0)) { "$vc\n${VC(-1.0)}"}
+    val actual = listOf(1, vc, 1, vc, -1.0, 1, vc)
+    require(l == actual) { "$l\n$actual" }
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/inlineClasses/secondaryConstructorsWithBody.txt b/compiler/testData/codegen/box/inlineClasses/secondaryConstructorsWithBody.txt
new file mode 100644
index 00000000000..c6364b2066e
--- /dev/null
+++ b/compiler/testData/codegen/box/inlineClasses/secondaryConstructorsWithBody.txt
@@ -0,0 +1,28 @@
+@kotlin.Metadata
+public final class SecondaryConstructorsWithBodyKt {
+    // source: 'secondaryConstructorsWithBody.kt'
+    private final static @org.jetbrains.annotations.NotNull field l: java.util.List
+    static method <clinit>(): void
+    public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
+    public final static @org.jetbrains.annotations.NotNull method getL(): java.util.List
+}
+
+@kotlin.jvm.JvmInline
+@kotlin.Metadata
+public final class VC {
+    // source: 'secondaryConstructorsWithBody.kt'
+    private final field x: int
+    private synthetic method <init>(p0: int): void
+    public synthetic final static method box-impl(p0: int): VC
+    public static method constructor-impl(p0: double): int
+    public static method constructor-impl(p0: int): int
+    public method equals(p0: java.lang.Object): boolean
+    public static method equals-impl(p0: int, p1: java.lang.Object): boolean
+    public final static method equals-impl0(p0: int, p1: int): boolean
+    public final method getX(): int
+    public method hashCode(): int
+    public static method hashCode-impl(p0: int): int
+    public method toString(): java.lang.String
+    public static method toString-impl(p0: int): java.lang.String
+    public synthetic final method unbox-impl(): int
+}
diff --git a/compiler/testData/codegen/box/valueClasses/secondaryConstructorsWithBody.kt b/compiler/testData/codegen/box/valueClasses/secondaryConstructorsWithBody.kt
new file mode 100644
index 00000000000..cd8ea2ecbee
--- /dev/null
+++ b/compiler/testData/codegen/box/valueClasses/secondaryConstructorsWithBody.kt
@@ -0,0 +1,32 @@
+// LANGUAGE: +ValueClasses, +ValueClassesSecondaryConstructorWithBody
+// TARGET_BACKEND: JVM_IR
+// CHECK_BYTECODE_LISTING
+// WITH_STDLIB
+// FIR_IDENTICAL
+
+val l = mutableListOf<Any>()
+
+@JvmInline
+value class VC(val x: Int, val y: ULong) {
+    constructor(xD: Double, yD: Double): this(xD.toInt() - 2, yD.toULong() - 2UL) {
+        l.add(xD)
+        l.add(yD)
+        l.add(x)
+        l.add(y)
+        l.add(this)
+    }
+    
+    init {
+        l.add(x)
+        l.add(y)
+        l.add(this)
+    }
+}
+
+fun box(): String {
+    val vc = VC(1, 2UL)
+    require(vc == VC(3.0, 4.0)) { "$vc\n${VC(3.0, 4.0)}"}
+    val actual = listOf(1, 2UL, vc, 1, 2UL, vc, 3.0, 4.0, 1, 2UL, vc)
+    require(l == actual) { "$l\n$actual" }
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/valueClasses/secondaryConstructorsWithBody.txt b/compiler/testData/codegen/box/valueClasses/secondaryConstructorsWithBody.txt
new file mode 100644
index 00000000000..8e4d02bb586
--- /dev/null
+++ b/compiler/testData/codegen/box/valueClasses/secondaryConstructorsWithBody.txt
@@ -0,0 +1,31 @@
+@kotlin.Metadata
+public final class SecondaryConstructorsWithBodyKt {
+    // source: 'secondaryConstructorsWithBody.kt'
+    private final static @org.jetbrains.annotations.NotNull field l: java.util.List
+    static method <clinit>(): void
+    public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
+    public final static @org.jetbrains.annotations.NotNull method getL(): java.util.List
+}
+
+@kotlin.jvm.JvmInline
+@kotlin.Metadata
+public final class VC {
+    // source: 'secondaryConstructorsWithBody.kt'
+    private final field x: int
+    private final field y: long
+    private synthetic method <init>(p0: int, p1: long): void
+    public synthetic final static method box-impl(p0: int, p1: long): VC
+    public final static @org.jetbrains.annotations.NotNull method constructor-impl(p0: double, p1: double): VC
+    public final static method constructor-impl(p0: int, p1: long): void
+    public method equals(@org.jetbrains.annotations.Nullable p0: java.lang.Object): boolean
+    public static method equals-impl(p0: int, p1: long, p2: java.lang.Object): boolean
+    public final static method equals-impl0(p0: int, p1: long, p2: int, p3: long): boolean
+    public final method getX(): int
+    public final method getY-s-VKNKU(): long
+    public method hashCode(): int
+    public static method hashCode-impl(p0: int, p1: long): int
+    public @org.jetbrains.annotations.NotNull method toString(): java.lang.String
+    public static method toString-impl(p0: int, p1: long): java.lang.String
+    public synthetic final method unbox-impl-x(): int
+    public synthetic final method unbox-impl-y(): long
+}
diff --git a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java
index 44cf62fe4c8..c5944ad54bd 100644
--- a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java
+++ b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java
@@ -22799,6 +22799,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             runTest("compiler/testData/codegen/box/inlineClasses/secondaryConstructorsInsideInlineClassWithPrimitiveCarrierTypeGeneric.kt", TransformersFunctions.getReplaceOptionalJvmInlineAnnotationWithReal());
         }
 
+        @Test
+        @TestMetadata("secondaryConstructorsWithBody.kt")
+        public void testSecondaryConstructorsWithBody() throws Exception {
+            runTest("compiler/testData/codegen/box/inlineClasses/secondaryConstructorsWithBody.kt");
+        }
+
         @Test
         @TestMetadata("simpleSecondaryConstructor.kt")
         public void testSimpleSecondaryConstructor() throws Exception {
@@ -50621,6 +50627,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             runTest("compiler/testData/codegen/box/valueClasses/overrides_typeParameters.kt");
         }
 
+        @Test
+        @TestMetadata("secondaryConstructorsWithBody.kt")
+        public void testSecondaryConstructorsWithBody() throws Exception {
+            runTest("compiler/testData/codegen/box/valueClasses/secondaryConstructorsWithBody.kt");
+        }
+
         @Test
         @TestMetadata("throwingMFVCReassignments.kt")
         public void testThrowingMFVCReassignments() throws Exception {
diff --git a/compiler/util/src/org/jetbrains/kotlin/config/LanguageVersionSettings.kt b/compiler/util/src/org/jetbrains/kotlin/config/LanguageVersionSettings.kt
index 301130e5530..686269ba784 100644
--- a/compiler/util/src/org/jetbrains/kotlin/config/LanguageVersionSettings.kt
+++ b/compiler/util/src/org/jetbrains/kotlin/config/LanguageVersionSettings.kt
@@ -282,6 +282,7 @@ enum class LanguageFeature(
     RefineTypeCheckingOnAssignmentsToJavaFields(KOTLIN_1_9, kind = BUG_FIX), // KT-46727
     InlineLateinit(KOTLIN_1_9, kind = OTHER), // KT-23814
     ReferencesToSyntheticJavaProperties(KOTLIN_1_9), // KT-8575
+    ValueClassesSecondaryConstructorWithBody(sinceVersion = KOTLIN_1_9, kind = UNSTABLE_FEATURE), // KT-55333
 
 
     // Disabled for indefinite time. See KT-53751
@@ -314,7 +315,6 @@ enum class LanguageFeature(
     JavaSamConversionEqualsHashCode(sinceVersion = null, kind = UNSTABLE_FEATURE),
     UnitConversionsOnArbitraryExpressions(sinceVersion = null),
     JsAllowImplementingFunctionInterface(sinceVersion = null, kind = UNSTABLE_FEATURE),
-    ValueClassesSecondaryConstructorWithBody(sinceVersion = null, kind = UNSTABLE_FEATURE),
     ;
 
     init {