diff --git a/scripts/build/deps/webkit.ts b/scripts/build/deps/webkit.ts
index 995262a97fcc..4243e2e658a3 100644
--- a/scripts/build/deps/webkit.ts
+++ b/scripts/build/deps/webkit.ts
@@ -7,7 +7,7 @@
 // -lto variants built with ThinLTO (per-module summaries for cross-language
 // importing), and the Windows ICU data table filtered + per-item zstd
 // compressed (lazily decompressed via bun_icu_decompress.cpp).
-export const WEBKIT_VERSION = "5851d4722e461bae1eb5537b091f4103e192a94a";
+export const WEBKIT_VERSION = "autobuild-preview-pr-251-92b221c1";
 
 /**
  * WebKit (JavaScriptCore) — the JS engine.
diff --git a/src/jsc/bindings/JSFFIFunction.cpp b/src/jsc/bindings/JSFFIFunction.cpp
index d03353812655..cbe3a0f2d373 100644
--- a/src/jsc/bindings/JSFFIFunction.cpp
+++ b/src/jsc/bindings/JSFFIFunction.cpp
@@ -150,18 +150,12 @@ void JSFFIFunction::visitChildrenImpl(JSCell* cell, Visitor& visitor)
 
 DEFINE_VISIT_CHILDREN(JSFFIFunction);
 
-void JSFFIFunction::finishCreation(VM& vm, NativeExecutable* executable, unsigned length, const String& name)
-{
-    Base::finishCreation(vm, executable, length, name);
-    ASSERT(inherits(info()));
-}
-
 JSFFIFunction* JSFFIFunction::create(VM& vm, Zig::GlobalObject* globalObject, unsigned length, const String& name, FFIFunction FFIFunction, Intrinsic intrinsic, NativeFunction nativeConstructor)
 {
-    NativeExecutable* executable = vm.getHostFunction(FFIFunction, ImplementationVisibility::Public, intrinsic, FFIFunction, nullptr, name);
+    NativeExecutable* executable = vm.getHostFunction(FFIFunction, ImplementationVisibility::Public, intrinsic, FFIFunction, nullptr, length, name);
     Structure* structure = globalObject->FFIFunctionStructure();
     JSFFIFunction* function = new (NotNull, allocateCell<JSFFIFunction>(vm)) JSFFIFunction(vm, executable, globalObject, structure, reinterpret_cast<CFFIFunction>(WTF::move(FFIFunction)));
-    function->finishCreation(vm, executable, length, name);
+    function->finishCreation(vm);
     return function;
 }
 
@@ -178,13 +172,13 @@ JSC_DEFINE_HOST_FUNCTION(JSFFIFunction::trampoline, (JSC::JSGlobalObject * globa
 JSFFIFunction* JSFFIFunction::createForFFI(VM& vm, Zig::GlobalObject* globalObject, unsigned length, const String& name, CFFIFunction FFIFunction)
 {
 #if OS(WINDOWS)
-    NativeExecutable* executable = vm.getHostFunction(trampoline, ImplementationVisibility::Public, NoIntrinsic, trampoline, nullptr, name);
+    NativeExecutable* executable = vm.getHostFunction(trampoline, ImplementationVisibility::Public, NoIntrinsic, trampoline, nullptr, length, name);
 #else
-    NativeExecutable* executable = vm.getHostFunction(FFIFunction, ImplementationVisibility::Public, NoIntrinsic, FFIFunction, nullptr, name);
+    NativeExecutable* executable = vm.getHostFunction(FFIFunction, ImplementationVisibility::Public, NoIntrinsic, FFIFunction, nullptr, length, name);
 #endif
     Structure* structure = globalObject->FFIFunctionStructure();
     JSFFIFunction* function = new (NotNull, allocateCell<JSFFIFunction>(vm)) JSFFIFunction(vm, executable, globalObject, structure, reinterpret_cast<CFFIFunction>(WTF::move(FFIFunction)));
-    function->finishCreation(vm, executable, length, name);
+    function->finishCreation(vm);
     return function;
 }
 
diff --git a/src/jsc/bindings/JSFFIFunction.h b/src/jsc/bindings/JSFFIFunction.h
index 6eccae7b6174..fde3e215adbf 100644
--- a/src/jsc/bindings/JSFFIFunction.h
+++ b/src/jsc/bindings/JSFFIFunction.h
@@ -91,7 +91,6 @@ class JSFFIFunction final : public JSC::JSFunction {
 
 private:
     JSFFIFunction(VM&, NativeExecutable*, JSGlobalObject*, Structure*, CFFIFunction&&);
-    void finishCreation(VM&, NativeExecutable*, unsigned length, const String& name);
     DECLARE_VISIT_CHILDREN;
 
     CFFIFunction m_function;
diff --git a/src/jsc/bindings/JSWrappingFunction.cpp b/src/jsc/bindings/JSWrappingFunction.cpp
index 2b35c618e96e..57f53d111b23 100644
--- a/src/jsc/bindings/JSWrappingFunction.cpp
+++ b/src/jsc/bindings/JSWrappingFunction.cpp
@@ -31,23 +31,17 @@ JS_EXPORT_PRIVATE JSWrappingFunction* JSWrappingFunction::create(
     auto name = Identifier::fromString(vm, nameStr);
     // Pass callHostFunctionAsConstructor so `new` on the wrapper throws a
     // TypeError instead of jumping to a null native constructor.
-    NativeExecutable* executable = vm.getHostFunction(functionPointer, ImplementationVisibility::Public, callHostFunctionAsConstructor, nameStr);
+    NativeExecutable* executable = vm.getHostFunction(functionPointer, ImplementationVisibility::Public, callHostFunctionAsConstructor, 0, nameStr);
 
     // Structure* structure = globalObject->FFIFunctionStructure();
     Structure* structure = JSWrappingFunction::createStructure(vm, globalObject, globalObject->objectPrototype());
     JSWrappingFunction* function = new (NotNull, allocateCell<JSWrappingFunction>(vm)) JSWrappingFunction(vm, executable, globalObject, structure, wrappedFn);
     ASSERT(function->structure()->globalObject());
-    function->finishCreation(vm, executable, 0, nameStr);
+    function->finishCreation(vm);
 
     return function;
 }
 
-void JSWrappingFunction::finishCreation(VM& vm, NativeExecutable* executable, unsigned length, const String& name)
-{
-    Base::finishCreation(vm, executable, length, name);
-    ASSERT(inherits(info()));
-}
-
 template<typename Visitor>
 void JSWrappingFunction::visitChildrenImpl(JSCell* cell, Visitor& visitor)
 {
diff --git a/src/jsc/bindings/JSWrappingFunction.h b/src/jsc/bindings/JSWrappingFunction.h
index 5b2aec591ba3..18aa6d3aaeda 100644
--- a/src/jsc/bindings/JSWrappingFunction.h
+++ b/src/jsc/bindings/JSWrappingFunction.h
@@ -65,8 +65,6 @@ class JSWrappingFunction final : public JSC::JSFunction {
     {
     }
 
-    void finishCreation(JSC::VM&, JSC::NativeExecutable*, unsigned length, const String& name);
-
     DECLARE_VISIT_CHILDREN;
 
     JSC::WriteBarrier<JSC::JSObject> m_wrappedFn;
diff --git a/src/jsc/bindings/NapiClass.cpp b/src/jsc/bindings/NapiClass.cpp
index 37381160e7ef..19a0616fbf68 100644
--- a/src/jsc/bindings/NapiClass.cpp
+++ b/src/jsc/bindings/NapiClass.cpp
@@ -92,19 +92,19 @@ NapiClass* NapiClass::create(VM& vm, napi_env env, WTF::String name,
         NapiClass_ConstructorFunction<false>,
         ImplementationVisibility::Public,
         // for constructor call
-        NapiClass_ConstructorFunction<true>, name);
+        NapiClass_ConstructorFunction<true>, 0, name);
     Structure* structure = env->globalObject()->NapiClassStructure();
     NapiClass* napiClass = new (NotNull, allocateCell<NapiClass>(vm)) NapiClass(vm, executable, env, structure, data);
-    napiClass->finishCreation(vm, executable, name, constructor, data, property_count, properties);
+    napiClass->finishCreation(vm, name, constructor, data, property_count, properties);
     return napiClass;
 }
 
-void NapiClass::finishCreation(VM& vm, NativeExecutable* executable, const String& name, napi_callback constructor,
+void NapiClass::finishCreation(VM& vm, const String& name, napi_callback constructor,
     void* data,
     size_t property_count,
     const napi_property_descriptor* properties)
 {
-    Base::finishCreation(vm, executable, 0, name);
+    Base::finishCreation(vm);
     ASSERT(inherits(info()));
     this->m_constructor = constructor;
     auto globalObject = static_cast<Zig::GlobalObject*>(this->globalObject());
diff --git a/src/jsc/bindings/napi.h b/src/jsc/bindings/napi.h
index aa305eae35c3..aa4a29f5cb1a 100644
--- a/src/jsc/bindings/napi.h
+++ b/src/jsc/bindings/napi.h
@@ -828,7 +828,7 @@ class NapiClass final : public JSC::JSFunction {
     {
     }
 
-    void finishCreation(VM&, NativeExecutable*, const String& name, napi_callback constructor,
+    void finishCreation(VM&, const String& name, napi_callback constructor,
         void* data,
         size_t property_count,
         const napi_property_descriptor* properties);
diff --git a/src/jsc/bindings/sqlite/JSSQLStatement.cpp b/src/jsc/bindings/sqlite/JSSQLStatement.cpp
index c68c7c2e8ba1..1e90204a307d 100644
--- a/src/jsc/bindings/sqlite/JSSQLStatement.cpp
+++ b/src/jsc/bindings/sqlite/JSSQLStatement.cpp
@@ -1685,7 +1685,7 @@ JSC_DEFINE_HOST_FUNCTION(jsSQLStatementPrepareStatementFunction, (JSC::JSGlobalO
 
 JSSQLStatementConstructor* JSSQLStatementConstructor::create(JSC::VM& vm, JSC::JSGlobalObject* globalObject, JSC::Structure* structure)
 {
-    NativeExecutable* executable = vm.getHostFunction(jsSQLStatementPrepareStatementFunction, ImplementationVisibility::Private, callHostFunctionAsConstructor, String("SQLStatement"_s));
+    NativeExecutable* executable = vm.getHostFunction(jsSQLStatementPrepareStatementFunction, ImplementationVisibility::Private, callHostFunctionAsConstructor, 0, String("SQLStatement"_s));
     JSSQLStatementConstructor* ptr = new (NotNull, JSC::allocateCell<JSSQLStatementConstructor>(vm)) JSSQLStatementConstructor(vm, executable, globalObject, structure);
     ptr->finishCreation(vm);