diff --git a/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/Puerts_il2cpp.cpp.txt b/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/Puerts_il2cpp.cpp.txt
index a15fc1814a..8f7ac37b28 100644
--- a/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/Puerts_il2cpp.cpp.txt
+++ b/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/Puerts_il2cpp.cpp.txt
@@ -487,7 +487,7 @@ static void* CtorCallback(pesapi_callback_info info)
 static void SetPObjectRefInfoValue(pesapi_env env, PObjectRefInfo* objectInfo, pesapi_value jsval)
 {
     objectInfo->EnvRef = pesapi_create_env_ref(env);
-    objectInfo->ValueRef = pesapi_create_value_ref(env, jsval);
+    objectInfo->ValueRef = pesapi_create_value_ref(env, jsval, 0);
     g_unityExports.SetExtraData(env, objectInfo);
 }
 
diff --git a/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/pesapi.h.txt b/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/pesapi.h.txt
index 9ec81ac52d..def0c2ce18 100644
--- a/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/pesapi.h.txt
+++ b/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/pesapi.h.txt
@@ -188,6 +188,7 @@ PESAPI_EXTERN void pesapi_add_return(pesapi_callback_info info, pesapi_value val
 PESAPI_EXTERN void pesapi_throw_by_string(pesapi_callback_info pinfo, const char* msg);
 
 PESAPI_EXTERN pesapi_env_ref pesapi_create_env_ref(pesapi_env env);
+PESAPI_EXTERN bool pesapi_env_ref_is_valid(pesapi_env_ref env);
 PESAPI_EXTERN pesapi_env pesapi_get_env_from_ref(pesapi_env_ref env_ref);
 PESAPI_EXTERN pesapi_env_ref pesapi_duplicate_env_ref(pesapi_env_ref env_ref);
 PESAPI_EXTERN void pesapi_release_env_ref(pesapi_env_ref env_ref);
@@ -197,16 +198,21 @@ PESAPI_EXTERN bool pesapi_has_caught(pesapi_scope scope);
 PESAPI_EXTERN const char* pesapi_get_exception_as_string(pesapi_scope scope, bool with_stack);
 PESAPI_EXTERN void pesapi_close_scope(pesapi_scope scope);
 
-PESAPI_EXTERN pesapi_value_ref pesapi_create_value_ref(pesapi_env env, pesapi_value value);
+PESAPI_EXTERN pesapi_value_ref pesapi_create_value_ref(pesapi_env env, pesapi_value value, uint32_t internal_field_count);
 PESAPI_EXTERN pesapi_value_ref pesapi_duplicate_value_ref(pesapi_value_ref value_ref);
 PESAPI_EXTERN void pesapi_release_value_ref(pesapi_value_ref value_ref);
 PESAPI_EXTERN pesapi_value pesapi_get_value_from_ref(pesapi_env env, pesapi_value_ref value_ref);
 PESAPI_EXTERN void pesapi_set_ref_weak(pesapi_env env, pesapi_value_ref value_ref);
 // Optional api: return false if can not fulfill
 PESAPI_EXTERN bool pesapi_set_owner(pesapi_env env, pesapi_value value, pesapi_value owner);
+// suggestion: struct pesapi_value_ref : pesapi_env_ref {...};
+PESAPI_EXTERN pesapi_env_ref pesapi_get_ref_associated_env(pesapi_value_ref value_ref);
+PESAPI_EXTERN void** pesapi_get_ref_internal_fields(pesapi_value_ref value_ref, uint32_t* pinternal_field_count);
 
 PESAPI_EXTERN pesapi_value pesapi_get_property(pesapi_env env, pesapi_value object, const char* key);
 PESAPI_EXTERN void pesapi_set_property(pesapi_env env, pesapi_value object, const char* key, pesapi_value value);
+PESAPI_EXTERN const void* pesapi_get_private(pesapi_env env, pesapi_value object);
+PESAPI_EXTERN void pesapi_set_private(pesapi_env env, pesapi_value object, const void* ptr);
 
 PESAPI_EXTERN pesapi_value pesapi_get_property_uint32(pesapi_env env, pesapi_value object, uint32_t key);
 PESAPI_EXTERN void pesapi_set_property_uint32(pesapi_env env, pesapi_value object, uint32_t key, pesapi_value value);
@@ -216,6 +222,10 @@ PESAPI_EXTERN pesapi_value pesapi_call_function(
 
 PESAPI_EXTERN pesapi_value pesapi_eval(pesapi_env env, const uint8_t* code, size_t code_size, const char* path);
 
+PESAPI_EXTERN pesapi_value pesapi_global(pesapi_env env);
+PESAPI_EXTERN const void* pesapi_get_env_private(pesapi_env env);
+PESAPI_EXTERN void pesapi_set_env_private(pesapi_env env, const void* ptr);
+
 PESAPI_EXTERN pesapi_type_info pesapi_alloc_type_infos(size_t count);
 
 PESAPI_EXTERN void pesapi_set_type_info(
diff --git a/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/pesapi_adpt.c.txt b/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/pesapi_adpt.c.txt
index 9536de98b1..463568ae40 100644
--- a/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/pesapi_adpt.c.txt
+++ b/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/pesapi_adpt.c.txt
@@ -328,6 +328,12 @@ pesapi_env_ref pesapi_create_env_ref (pesapi_env env) {
     return pesapi_create_env_ref_ptr(env);
 }
 
+typedef bool (*pesapi_env_ref_is_validType)(pesapi_env_ref env);
+static pesapi_env_ref_is_validType pesapi_env_ref_is_valid_ptr;
+bool pesapi_env_ref_is_valid (pesapi_env_ref env) {
+    return pesapi_env_ref_is_valid_ptr(env);
+}
+
 typedef pesapi_env (*pesapi_get_env_from_refType)(pesapi_env_ref env_ref);
 static pesapi_get_env_from_refType pesapi_get_env_from_ref_ptr;
 pesapi_env pesapi_get_env_from_ref (pesapi_env_ref env_ref) {
@@ -370,10 +376,10 @@ void pesapi_close_scope (pesapi_scope scope) {
     pesapi_close_scope_ptr(scope);
 }
 
-typedef pesapi_value_ref (*pesapi_create_value_refType)(pesapi_env env, pesapi_value value);
+typedef pesapi_value_ref (*pesapi_create_value_refType)(pesapi_env env, pesapi_value value, uint32_t internal_field_count);
 static pesapi_create_value_refType pesapi_create_value_ref_ptr;
-pesapi_value_ref pesapi_create_value_ref (pesapi_env env, pesapi_value value) {
-    return pesapi_create_value_ref_ptr(env, value);
+pesapi_value_ref pesapi_create_value_ref (pesapi_env env, pesapi_value value, uint32_t internal_field_count) {
+    return pesapi_create_value_ref_ptr(env, value, internal_field_count);
 }
 
 typedef pesapi_value_ref (*pesapi_duplicate_value_refType)(pesapi_value_ref value_ref);
@@ -406,6 +412,18 @@ bool pesapi_set_owner (pesapi_env env, pesapi_value value, pesapi_value owner) {
     return pesapi_set_owner_ptr(env, value, owner);
 }
 
+typedef pesapi_env_ref (*pesapi_get_ref_associated_envType)(pesapi_value_ref value_ref);
+static pesapi_get_ref_associated_envType pesapi_get_ref_associated_env_ptr;
+pesapi_env_ref pesapi_get_ref_associated_env (pesapi_value_ref value_ref) {
+    return pesapi_get_ref_associated_env_ptr(value_ref);
+}
+
+typedef void** (*pesapi_get_ref_internal_fieldsType)(pesapi_value_ref value_ref, uint32_t* pinternal_field_count);
+static pesapi_get_ref_internal_fieldsType pesapi_get_ref_internal_fields_ptr;
+void** pesapi_get_ref_internal_fields (pesapi_value_ref value_ref, uint32_t* pinternal_field_count) {
+    return pesapi_get_ref_internal_fields_ptr(value_ref, pinternal_field_count);
+}
+
 typedef pesapi_value (*pesapi_get_propertyType)(pesapi_env env, pesapi_value object, const char* key);
 static pesapi_get_propertyType pesapi_get_property_ptr;
 pesapi_value pesapi_get_property (pesapi_env env, pesapi_value object, const char* key) {
@@ -418,6 +436,18 @@ void pesapi_set_property (pesapi_env env, pesapi_value object, const char* key,
     pesapi_set_property_ptr(env, object, key, value);
 }
 
+typedef const void* (*pesapi_get_privateType)(pesapi_env env, pesapi_value object);
+static pesapi_get_privateType pesapi_get_private_ptr;
+const void* pesapi_get_private (pesapi_env env, pesapi_value object) {
+    return pesapi_get_private_ptr(env, object);
+}
+
+typedef void (*pesapi_set_privateType)(pesapi_env env, pesapi_value object, const void* ptr);
+static pesapi_set_privateType pesapi_set_private_ptr;
+void pesapi_set_private (pesapi_env env, pesapi_value object, const void* ptr) {
+    pesapi_set_private_ptr(env, object, ptr);
+}
+
 typedef pesapi_value (*pesapi_get_property_uint32Type)(pesapi_env env, pesapi_value object, uint32_t key);
 static pesapi_get_property_uint32Type pesapi_get_property_uint32_ptr;
 pesapi_value pesapi_get_property_uint32 (pesapi_env env, pesapi_value object, uint32_t key) {
@@ -442,6 +472,24 @@ pesapi_value pesapi_eval (pesapi_env env, const uint8_t* code, size_t code_size,
     return pesapi_eval_ptr(env, code, code_size, path);
 }
 
+typedef pesapi_value (*pesapi_globalType)(pesapi_env env);
+static pesapi_globalType pesapi_global_ptr;
+pesapi_value pesapi_global (pesapi_env env) {
+    return pesapi_global_ptr(env);
+}
+
+typedef const void* (*pesapi_get_env_privateType)(pesapi_env env);
+static pesapi_get_env_privateType pesapi_get_env_private_ptr;
+const void* pesapi_get_env_private (pesapi_env env) {
+    return pesapi_get_env_private_ptr(env);
+}
+
+typedef void (*pesapi_set_env_privateType)(pesapi_env env, const void* ptr);
+static pesapi_set_env_privateType pesapi_set_env_private_ptr;
+void pesapi_set_env_private (pesapi_env env, const void* ptr) {
+    pesapi_set_env_private_ptr(env, ptr);
+}
+
 typedef pesapi_type_info (*pesapi_alloc_type_infosType)(size_t count);
 static pesapi_alloc_type_infosType pesapi_alloc_type_infos_ptr;
 pesapi_type_info pesapi_alloc_type_infos (size_t count) {
@@ -553,34 +601,42 @@ void pesapi_init(pesapi_func_ptr* func_array){
     pesapi_add_return_ptr = (pesapi_add_returnType)func_array[49];
     pesapi_throw_by_string_ptr = (pesapi_throw_by_stringType)func_array[50];
     pesapi_create_env_ref_ptr = (pesapi_create_env_refType)func_array[51];
-    pesapi_get_env_from_ref_ptr = (pesapi_get_env_from_refType)func_array[52];
-    pesapi_duplicate_env_ref_ptr = (pesapi_duplicate_env_refType)func_array[53];
-    pesapi_release_env_ref_ptr = (pesapi_release_env_refType)func_array[54];
-    pesapi_open_scope_ptr = (pesapi_open_scopeType)func_array[55];
-    pesapi_has_caught_ptr = (pesapi_has_caughtType)func_array[56];
-    pesapi_get_exception_as_string_ptr = (pesapi_get_exception_as_stringType)func_array[57];
-    pesapi_close_scope_ptr = (pesapi_close_scopeType)func_array[58];
-    pesapi_create_value_ref_ptr = (pesapi_create_value_refType)func_array[59];
-    pesapi_duplicate_value_ref_ptr = (pesapi_duplicate_value_refType)func_array[60];
-    pesapi_release_value_ref_ptr = (pesapi_release_value_refType)func_array[61];
-    pesapi_get_value_from_ref_ptr = (pesapi_get_value_from_refType)func_array[62];
-    pesapi_set_ref_weak_ptr = (pesapi_set_ref_weakType)func_array[63];
-    pesapi_set_owner_ptr = (pesapi_set_ownerType)func_array[64];
-    pesapi_get_property_ptr = (pesapi_get_propertyType)func_array[65];
-    pesapi_set_property_ptr = (pesapi_set_propertyType)func_array[66];
-    pesapi_get_property_uint32_ptr = (pesapi_get_property_uint32Type)func_array[67];
-    pesapi_set_property_uint32_ptr = (pesapi_set_property_uint32Type)func_array[68];
-    pesapi_call_function_ptr = (pesapi_call_functionType)func_array[69];
-    pesapi_eval_ptr = (pesapi_evalType)func_array[70];
-    pesapi_alloc_type_infos_ptr = (pesapi_alloc_type_infosType)func_array[71];
-    pesapi_set_type_info_ptr = (pesapi_set_type_infoType)func_array[72];
-    pesapi_create_signature_info_ptr = (pesapi_create_signature_infoType)func_array[73];
-    pesapi_alloc_property_descriptors_ptr = (pesapi_alloc_property_descriptorsType)func_array[74];
-    pesapi_set_method_info_ptr = (pesapi_set_method_infoType)func_array[75];
-    pesapi_set_property_info_ptr = (pesapi_set_property_infoType)func_array[76];
-    pesapi_define_class_ptr = (pesapi_define_classType)func_array[77];
-    pesapi_class_type_info_ptr = (pesapi_class_type_infoType)func_array[78];
-    pesapi_find_type_id_ptr = (pesapi_find_type_idType)func_array[79];
+    pesapi_env_ref_is_valid_ptr = (pesapi_env_ref_is_validType)func_array[52];
+    pesapi_get_env_from_ref_ptr = (pesapi_get_env_from_refType)func_array[53];
+    pesapi_duplicate_env_ref_ptr = (pesapi_duplicate_env_refType)func_array[54];
+    pesapi_release_env_ref_ptr = (pesapi_release_env_refType)func_array[55];
+    pesapi_open_scope_ptr = (pesapi_open_scopeType)func_array[56];
+    pesapi_has_caught_ptr = (pesapi_has_caughtType)func_array[57];
+    pesapi_get_exception_as_string_ptr = (pesapi_get_exception_as_stringType)func_array[58];
+    pesapi_close_scope_ptr = (pesapi_close_scopeType)func_array[59];
+    pesapi_create_value_ref_ptr = (pesapi_create_value_refType)func_array[60];
+    pesapi_duplicate_value_ref_ptr = (pesapi_duplicate_value_refType)func_array[61];
+    pesapi_release_value_ref_ptr = (pesapi_release_value_refType)func_array[62];
+    pesapi_get_value_from_ref_ptr = (pesapi_get_value_from_refType)func_array[63];
+    pesapi_set_ref_weak_ptr = (pesapi_set_ref_weakType)func_array[64];
+    pesapi_set_owner_ptr = (pesapi_set_ownerType)func_array[65];
+    pesapi_get_ref_associated_env_ptr = (pesapi_get_ref_associated_envType)func_array[66];
+    pesapi_get_ref_internal_fields_ptr = (pesapi_get_ref_internal_fieldsType)func_array[67];
+    pesapi_get_property_ptr = (pesapi_get_propertyType)func_array[68];
+    pesapi_set_property_ptr = (pesapi_set_propertyType)func_array[69];
+    pesapi_get_private_ptr = (pesapi_get_privateType)func_array[70];
+    pesapi_set_private_ptr = (pesapi_set_privateType)func_array[71];
+    pesapi_get_property_uint32_ptr = (pesapi_get_property_uint32Type)func_array[72];
+    pesapi_set_property_uint32_ptr = (pesapi_set_property_uint32Type)func_array[73];
+    pesapi_call_function_ptr = (pesapi_call_functionType)func_array[74];
+    pesapi_eval_ptr = (pesapi_evalType)func_array[75];
+    pesapi_global_ptr = (pesapi_globalType)func_array[76];
+    pesapi_get_env_private_ptr = (pesapi_get_env_privateType)func_array[77];
+    pesapi_set_env_private_ptr = (pesapi_set_env_privateType)func_array[78];
+    pesapi_alloc_type_infos_ptr = (pesapi_alloc_type_infosType)func_array[79];
+    pesapi_set_type_info_ptr = (pesapi_set_type_infoType)func_array[80];
+    pesapi_create_signature_info_ptr = (pesapi_create_signature_infoType)func_array[81];
+    pesapi_alloc_property_descriptors_ptr = (pesapi_alloc_property_descriptorsType)func_array[82];
+    pesapi_set_method_info_ptr = (pesapi_set_method_infoType)func_array[83];
+    pesapi_set_property_info_ptr = (pesapi_set_property_infoType)func_array[84];
+    pesapi_define_class_ptr = (pesapi_define_classType)func_array[85];
+    pesapi_class_type_info_ptr = (pesapi_class_type_infoType)func_array[86];
+    pesapi_find_type_id_ptr = (pesapi_find_type_idType)func_array[87];
 
 #endif
 }
diff --git a/unity/native_src_il2cpp/Inc/CppObjectMapper.h b/unity/native_src_il2cpp/Inc/CppObjectMapper.h
index d9b921e80d..00a7866d41 100644
--- a/unity/native_src_il2cpp/Inc/CppObjectMapper.h
+++ b/unity/native_src_il2cpp/Inc/CppObjectMapper.h
@@ -59,6 +59,10 @@ class FCppObjectMapper final : public ICppObjectMapper
 
     virtual void BindCppObject(v8::Isolate* Isolate, JSClassDefinition* ClassDefinition, void* Ptr, v8::Local<v8::Object> JSObject,
         bool PassByPointer) override;
+        
+    virtual void* GetPrivateData(v8::Local<v8::Context> Context, v8::Local<v8::Object> JSObject) override;
+
+    virtual void SetPrivateData(v8::Local<v8::Context> Context, v8::Local<v8::Object> JSObject, void* Ptr) override;
 
     void UnInitialize(v8::Isolate* InIsolate);
 
@@ -86,6 +90,8 @@ class FCppObjectMapper final : public ICppObjectMapper
     std::unordered_map<const void*, v8::UniquePersistent<v8::FunctionTemplate>> TypeIdToTemplateMap;
 
     v8::UniquePersistent<v8::FunctionTemplate> PointerTemplate;
+    
+    v8::Global<v8::Symbol> PrivateKey;
 
     std::unordered_map<void*, FinalizeFunc> CDataFinalizeMap;
 
diff --git a/unity/native_src_il2cpp/Inc/ObjectMapper.h b/unity/native_src_il2cpp/Inc/ObjectMapper.h
index 00e4250f7d..6dd68dab8c 100644
--- a/unity/native_src_il2cpp/Inc/ObjectMapper.h
+++ b/unity/native_src_il2cpp/Inc/ObjectMapper.h
@@ -35,6 +35,10 @@ class ICppObjectMapper
         v8::Isolate* Isolate, v8::Local<v8::Context>& Context, const void* TypeId, void* Ptr, bool PassByPointer) = 0;
 
     virtual bool IsInstanceOfCppObject(const void* TypeId, v8::Local<v8::Object> JsObject) = 0;
+    
+    virtual void* GetPrivateData(v8::Local<v8::Context> Context, v8::Local<v8::Object> JSObject) = 0;
+
+    virtual void SetPrivateData(v8::Local<v8::Context> Context, v8::Local<v8::Object> JSObject, void* Ptr) = 0;
 
     virtual std::weak_ptr<int> GetJsEnvLifeCycleTracker() = 0;
 
diff --git a/unity/native_src_il2cpp/Inc/pesapi.h b/unity/native_src_il2cpp/Inc/pesapi.h
index 9ec81ac52d..def0c2ce18 100644
--- a/unity/native_src_il2cpp/Inc/pesapi.h
+++ b/unity/native_src_il2cpp/Inc/pesapi.h
@@ -188,6 +188,7 @@ PESAPI_EXTERN void pesapi_add_return(pesapi_callback_info info, pesapi_value val
 PESAPI_EXTERN void pesapi_throw_by_string(pesapi_callback_info pinfo, const char* msg);
 
 PESAPI_EXTERN pesapi_env_ref pesapi_create_env_ref(pesapi_env env);
+PESAPI_EXTERN bool pesapi_env_ref_is_valid(pesapi_env_ref env);
 PESAPI_EXTERN pesapi_env pesapi_get_env_from_ref(pesapi_env_ref env_ref);
 PESAPI_EXTERN pesapi_env_ref pesapi_duplicate_env_ref(pesapi_env_ref env_ref);
 PESAPI_EXTERN void pesapi_release_env_ref(pesapi_env_ref env_ref);
@@ -197,16 +198,21 @@ PESAPI_EXTERN bool pesapi_has_caught(pesapi_scope scope);
 PESAPI_EXTERN const char* pesapi_get_exception_as_string(pesapi_scope scope, bool with_stack);
 PESAPI_EXTERN void pesapi_close_scope(pesapi_scope scope);
 
-PESAPI_EXTERN pesapi_value_ref pesapi_create_value_ref(pesapi_env env, pesapi_value value);
+PESAPI_EXTERN pesapi_value_ref pesapi_create_value_ref(pesapi_env env, pesapi_value value, uint32_t internal_field_count);
 PESAPI_EXTERN pesapi_value_ref pesapi_duplicate_value_ref(pesapi_value_ref value_ref);
 PESAPI_EXTERN void pesapi_release_value_ref(pesapi_value_ref value_ref);
 PESAPI_EXTERN pesapi_value pesapi_get_value_from_ref(pesapi_env env, pesapi_value_ref value_ref);
 PESAPI_EXTERN void pesapi_set_ref_weak(pesapi_env env, pesapi_value_ref value_ref);
 // Optional api: return false if can not fulfill
 PESAPI_EXTERN bool pesapi_set_owner(pesapi_env env, pesapi_value value, pesapi_value owner);
+// suggestion: struct pesapi_value_ref : pesapi_env_ref {...};
+PESAPI_EXTERN pesapi_env_ref pesapi_get_ref_associated_env(pesapi_value_ref value_ref);
+PESAPI_EXTERN void** pesapi_get_ref_internal_fields(pesapi_value_ref value_ref, uint32_t* pinternal_field_count);
 
 PESAPI_EXTERN pesapi_value pesapi_get_property(pesapi_env env, pesapi_value object, const char* key);
 PESAPI_EXTERN void pesapi_set_property(pesapi_env env, pesapi_value object, const char* key, pesapi_value value);
+PESAPI_EXTERN const void* pesapi_get_private(pesapi_env env, pesapi_value object);
+PESAPI_EXTERN void pesapi_set_private(pesapi_env env, pesapi_value object, const void* ptr);
 
 PESAPI_EXTERN pesapi_value pesapi_get_property_uint32(pesapi_env env, pesapi_value object, uint32_t key);
 PESAPI_EXTERN void pesapi_set_property_uint32(pesapi_env env, pesapi_value object, uint32_t key, pesapi_value value);
@@ -216,6 +222,10 @@ PESAPI_EXTERN pesapi_value pesapi_call_function(
 
 PESAPI_EXTERN pesapi_value pesapi_eval(pesapi_env env, const uint8_t* code, size_t code_size, const char* path);
 
+PESAPI_EXTERN pesapi_value pesapi_global(pesapi_env env);
+PESAPI_EXTERN const void* pesapi_get_env_private(pesapi_env env);
+PESAPI_EXTERN void pesapi_set_env_private(pesapi_env env, const void* ptr);
+
 PESAPI_EXTERN pesapi_type_info pesapi_alloc_type_infos(size_t count);
 
 PESAPI_EXTERN void pesapi_set_type_info(
diff --git a/unity/native_src_il2cpp/Src/CppObjectMapper.cpp b/unity/native_src_il2cpp/Src/CppObjectMapper.cpp
index 5c27bf3e61..ece2de8269 100644
--- a/unity/native_src_il2cpp/Src/CppObjectMapper.cpp
+++ b/unity/native_src_il2cpp/Src/CppObjectMapper.cpp
@@ -91,6 +91,7 @@ void FCppObjectMapper::Initialize(v8::Isolate* InIsolate, v8::Local<v8::Context>
     PersistentObjectEnvInfo.Isolate = InIsolate;
     PersistentObjectEnvInfo.Context.Reset(InIsolate, InContext);
     PersistentObjectEnvInfo.SymbolCSPtr.Reset(InIsolate, v8::Symbol::New(InIsolate));
+    PrivateKey.Reset(InIsolate, v8::Symbol::New(InIsolate));
 }
 
 v8::Local<v8::Value> FCppObjectMapper::FindOrAddCppObject(
@@ -366,6 +367,28 @@ void FCppObjectMapper::BindCppObject(
     }
 }
 
+void* FCppObjectMapper::GetPrivateData(v8::Local<v8::Context> Context, v8::Local<v8::Object> JSObject)
+{
+    v8::MaybeLocal<v8::Value> maybeValue = JSObject->Get(Context, PrivateKey.Get(Context->GetIsolate()));
+    if (maybeValue.IsEmpty())
+    {
+        return nullptr;
+    }
+
+    v8::Local<v8::Value> maybeExternal = maybeValue.ToLocalChecked();
+    if (!maybeExternal->IsExternal())
+    {
+        return nullptr;
+    }
+
+    return v8::Local<v8::External>::Cast(maybeExternal)->Value();
+}
+
+void FCppObjectMapper::SetPrivateData(v8::Local<v8::Context> Context, v8::Local<v8::Object> JSObject, void* Ptr)
+{
+    (void) (JSObject->Set(Context, PrivateKey.Get(Context->GetIsolate()), v8::External::New(Context->GetIsolate(), Ptr)));
+}
+
 void FCppObjectMapper::UnBindCppObject(JSClassDefinition* ClassDefinition, void* Ptr)
 {
     CDataFinalizeMap.erase(Ptr);
@@ -399,6 +422,7 @@ void FCppObjectMapper::UnInitialize(v8::Isolate* InIsolate)
     CDataCache.clear();
     CDataFinalizeMap.clear();
     TypeIdToTemplateMap.clear();
+    PrivateKey.Reset();
     PointerTemplate.Reset();
     PersistentObjectEnvInfo.Context.Reset();
     PersistentObjectEnvInfo.SymbolCSPtr.Reset();
diff --git a/unity/native_src_il2cpp/Src/PesapiAddonLoad.cpp b/unity/native_src_il2cpp/Src/PesapiAddonLoad.cpp
index a4ad06bd3b..00995567d6 100644
--- a/unity/native_src_il2cpp/Src/PesapiAddonLoad.cpp
+++ b/unity/native_src_il2cpp/Src/PesapiAddonLoad.cpp
@@ -55,14 +55,18 @@ static pesapi_func_ptr funcs[] = {(pesapi_func_ptr) &pesapi_create_null, (pesapi
     (pesapi_func_ptr) &pesapi_get_arg, (pesapi_func_ptr) &pesapi_get_env, (pesapi_func_ptr) &pesapi_get_this,
     (pesapi_func_ptr) &pesapi_get_holder, (pesapi_func_ptr) &pesapi_get_userdata,
     (pesapi_func_ptr) &pesapi_get_constructor_userdata, (pesapi_func_ptr) &pesapi_add_return,
-    (pesapi_func_ptr) &pesapi_throw_by_string, (pesapi_func_ptr) &pesapi_create_env_ref, (pesapi_func_ptr) &pesapi_get_env_from_ref,
-    (pesapi_func_ptr) &pesapi_duplicate_env_ref, (pesapi_func_ptr) &pesapi_release_env_ref, (pesapi_func_ptr) &pesapi_open_scope,
-    (pesapi_func_ptr) &pesapi_has_caught, (pesapi_func_ptr) &pesapi_get_exception_as_string, (pesapi_func_ptr) &pesapi_close_scope,
+    (pesapi_func_ptr) &pesapi_throw_by_string, (pesapi_func_ptr) &pesapi_create_env_ref, (pesapi_func_ptr) &pesapi_env_ref_is_valid,
+    (pesapi_func_ptr) &pesapi_get_env_from_ref, (pesapi_func_ptr) &pesapi_duplicate_env_ref,
+    (pesapi_func_ptr) &pesapi_release_env_ref, (pesapi_func_ptr) &pesapi_open_scope, (pesapi_func_ptr) &pesapi_has_caught,
+    (pesapi_func_ptr) &pesapi_get_exception_as_string, (pesapi_func_ptr) &pesapi_close_scope,
     (pesapi_func_ptr) &pesapi_create_value_ref, (pesapi_func_ptr) &pesapi_duplicate_value_ref,
     (pesapi_func_ptr) &pesapi_release_value_ref, (pesapi_func_ptr) &pesapi_get_value_from_ref,
-    (pesapi_func_ptr) &pesapi_set_ref_weak, (pesapi_func_ptr) &pesapi_set_owner, (pesapi_func_ptr) &pesapi_get_property,
-    (pesapi_func_ptr) &pesapi_set_property, (pesapi_func_ptr) &pesapi_get_property_uint32,
-    (pesapi_func_ptr) &pesapi_set_property_uint32, (pesapi_func_ptr) &pesapi_call_function, (pesapi_func_ptr) &pesapi_eval,
+    (pesapi_func_ptr) &pesapi_set_ref_weak, (pesapi_func_ptr) &pesapi_set_owner, (pesapi_func_ptr) &pesapi_get_ref_associated_env,
+    (pesapi_func_ptr) &pesapi_get_ref_internal_fields, (pesapi_func_ptr) &pesapi_get_property,
+    (pesapi_func_ptr) &pesapi_set_property, (pesapi_func_ptr) &pesapi_get_private, (pesapi_func_ptr) &pesapi_set_private,
+    (pesapi_func_ptr) &pesapi_get_property_uint32, (pesapi_func_ptr) &pesapi_set_property_uint32,
+    (pesapi_func_ptr) &pesapi_call_function, (pesapi_func_ptr) &pesapi_eval, (pesapi_func_ptr) &pesapi_global,
+    (pesapi_func_ptr) &pesapi_get_env_private, (pesapi_func_ptr) &pesapi_set_env_private,
     (pesapi_func_ptr) &pesapi_alloc_type_infos, (pesapi_func_ptr) &pesapi_set_type_info,
     (pesapi_func_ptr) &pesapi_create_signature_info, (pesapi_func_ptr) &pesapi_alloc_property_descriptors,
     (pesapi_func_ptr) &pesapi_set_method_info, (pesapi_func_ptr) &pesapi_set_property_info, (pesapi_func_ptr) &pesapi_define_class,
diff --git a/unity/native_src_il2cpp/Src/PesapiV8Impl.cpp b/unity/native_src_il2cpp/Src/PesapiV8Impl.cpp
index 70f28a881d..e24ec9aef1 100644
--- a/unity/native_src_il2cpp/Src/PesapiV8Impl.cpp
+++ b/unity/native_src_il2cpp/Src/PesapiV8Impl.cpp
@@ -11,6 +11,7 @@
 #include "pesapi.h"
 #include "DataTransfer.h"
 #include "JSClassRegister.h"
+#include "ObjectMapper.h"
 
 #include <string>
 #include <sstream>
@@ -33,20 +34,16 @@ struct pesapi_env_ref__
     std::weak_ptr<int> env_life_cycle_tracker;
 };
 
-struct pesapi_value_ref__
+struct pesapi_value_ref__ : pesapi_env_ref__
 {
-    explicit pesapi_value_ref__(v8::Local<v8::Context> context, v8::Local<v8::Value> value)
-        : value_persistent(context->GetIsolate(), value)
-        , isolate(context->GetIsolate())
-        , ref_count(1)
-        , env_life_cycle_tracker(puerts::DataTransfer::GetJsEnvLifeCycleTracker(context->GetIsolate()))
+    explicit pesapi_value_ref__(v8::Local<v8::Context> context, v8::Local<v8::Value> value, uint32_t field_count)
+        : pesapi_env_ref__(context), value_persistent(context->GetIsolate(), value), internal_field_count(field_count)
     {
     }
 
     v8::Persistent<v8::Value> value_persistent;
-    v8::Isolate* const isolate;
-    int ref_count;
-    std::weak_ptr<int> env_life_cycle_tracker;
+    uint32_t internal_field_count;
+    void* internal_fields[0];
 };
 
 struct pesapi_scope__
@@ -471,6 +468,11 @@ pesapi_env_ref pesapi_create_env_ref(pesapi_env env)
     return new pesapi_env_ref__(context);
 }
 
+bool pesapi_env_ref_is_valid(pesapi_env_ref env_ref)
+{
+    return !env_ref->env_life_cycle_tracker.expired();
+}
+
 pesapi_env pesapi_get_env_from_ref(pesapi_env_ref env_ref)
 {
     if (env_ref->env_life_cycle_tracker.expired())
@@ -564,11 +566,13 @@ void pesapi_close_scope(pesapi_scope scope)
     isolate->Exit();
 }
 
-pesapi_value_ref pesapi_create_value_ref(pesapi_env env, pesapi_value pvalue)
+pesapi_value_ref pesapi_create_value_ref(pesapi_env env, pesapi_value pvalue, uint32_t internal_field_count)
 {
     auto context = v8impl::V8LocalContextFromPesapiEnv(env);
     auto value = v8impl::V8LocalValueFromPesapiValue(pvalue);
-    return new pesapi_value_ref__(context, value);
+    size_t totalSize = sizeof(pesapi_value_ref__) + sizeof(void*) * internal_field_count;
+    void* buffer = ::operator new(totalSize);
+    return new (buffer) pesapi_value_ref__(context, value, internal_field_count);
 }
 
 pesapi_value_ref pesapi_duplicate_value_ref(pesapi_value_ref value_ref)
@@ -585,15 +589,14 @@ void pesapi_release_value_ref(pesapi_value_ref value_ref)
         {
 #if V8_MAJOR_VERSION < 11
             value_ref->value_persistent.Empty();
-            delete value_ref;
-#else
-            ::operator delete(static_cast<void*>(value_ref));
+            value_ref->~pesapi_value_ref__();
 #endif
         }
         else
         {
-            delete value_ref;
+            value_ref->~pesapi_value_ref__();
         }
+        ::operator delete(static_cast<void*>(value_ref));
     }
 }
 
@@ -627,6 +630,17 @@ bool pesapi_set_owner(pesapi_env env, pesapi_value pvalue, pesapi_value powner)
     return false;
 }
 
+pesapi_env_ref pesapi_get_ref_associated_env(pesapi_value_ref value_ref)
+{
+    return value_ref;
+}
+
+void** pesapi_get_ref_internal_fields(pesapi_value_ref value_ref, uint32_t* pinternal_field_count)
+{
+    *pinternal_field_count = value_ref->internal_field_count;
+    return &value_ref->internal_fields[0];
+}
+
 pesapi_value pesapi_get_property(pesapi_env env, pesapi_value pobject, const char* key)
 {
     auto context = v8impl::V8LocalContextFromPesapiEnv(env);
@@ -657,6 +671,22 @@ void pesapi_set_property(pesapi_env env, pesapi_value pobject, const char* key,
     }
 }
 
+const void* pesapi_get_private(pesapi_env env, pesapi_value pobject)
+{
+    auto context = v8impl::V8LocalContextFromPesapiEnv(env);
+    auto object = v8impl::V8LocalValueFromPesapiValue(pobject);
+    return puerts::DataTransfer::IsolateData<puerts::ICppObjectMapper>(context->GetIsolate())
+        ->GetPrivateData(context, object.As<v8::Object>());
+}
+
+void pesapi_set_private(pesapi_env env, pesapi_value pobject, const void* ptr)
+{
+    auto context = v8impl::V8LocalContextFromPesapiEnv(env);
+    auto object = v8impl::V8LocalValueFromPesapiValue(pobject);
+    puerts::DataTransfer::IsolateData<puerts::ICppObjectMapper>(context->GetIsolate())
+        ->SetPrivateData(context, object.As<v8::Object>(), const_cast<void*>(ptr));
+}
+
 pesapi_value pesapi_get_property_uint32(pesapi_env env, pesapi_value pobject, uint32_t key)
 {
     auto context = v8impl::V8LocalContextFromPesapiEnv(env);
@@ -733,6 +763,25 @@ pesapi_value pesapi_eval(pesapi_env env, const uint8_t* code, size_t code_size,
     return v8impl::PesapiValueFromV8LocalValue(maybe_ret.ToLocalChecked());
 }
 
+pesapi_value pesapi_global(pesapi_env env)
+{
+    auto context = v8impl::V8LocalContextFromPesapiEnv(env);
+    auto global = context->Global();
+    return v8impl::PesapiValueFromV8LocalValue(global);
+}
+
+const void* pesapi_get_env_private(pesapi_env env)
+{
+    auto context = v8impl::V8LocalContextFromPesapiEnv(env);
+    return context->GetIsolate()->GetData(MAPPER_ISOLATE_DATA_POS + 1);
+}
+
+void pesapi_set_env_private(pesapi_env env, const void* ptr)
+{
+    auto context = v8impl::V8LocalContextFromPesapiEnv(env);
+    context->GetIsolate()->SetData(MAPPER_ISOLATE_DATA_POS + 1, const_cast<void*>(ptr));
+}
+
 struct pesapi_type_info__
 {
     const char* name;
diff --git a/unity/native_src_il2cpp/Src/Puerts.cpp b/unity/native_src_il2cpp/Src/Puerts.cpp
index b2aace7261..0938d22ce2 100644
--- a/unity/native_src_il2cpp/Src/Puerts.cpp
+++ b/unity/native_src_il2cpp/Src/Puerts.cpp
@@ -164,6 +164,16 @@ static void SetExtraData(pesapi_env env, struct PObjectRefInfo* objectInfo)
     objectInfo->EnvLifeCycleTracker = DataTransfer::GetJsEnvLifeCycleTracker(Isolate);
 }
 
+// 临时兼容新papi
+struct pesapi_value_ref_def
+{
+    v8::Persistent<v8::Context> context_persistent;
+    v8::Isolate* const isolate;
+    int ref_count;
+    std::weak_ptr<int> env_life_cycle_tracker;
+    v8::Global<v8::Object> value_persistent;
+};
+
 static void UnrefJsObject(PObjectRefInfo* objectInfo)
 {
     // gc线程不能访问v8虚拟机，访问就会崩溃 ///
@@ -171,9 +181,8 @@ static void UnrefJsObject(PObjectRefInfo* objectInfo)
     {
         auto envInfo = static_cast<puerts::FPersistentObjectEnvInfo*>(objectInfo->ExtraData);
         std::lock_guard<std::mutex> guard(envInfo->Mutex);
-        
-        v8::Global<v8::Object> *obj = reinterpret_cast<v8::Global<v8::Object> *>(objectInfo->ValueRef); // TODO: 和实现绑定了，需优化
-        envInfo->PendingReleaseObjects.push_back(std::move(*obj));
+        pesapi_value_ref_def* vr = (pesapi_value_ref_def*)objectInfo->ValueRef;
+        envInfo->PendingReleaseObjects.push_back(std::move(vr->value_persistent));
     }
     objectInfo->ExtraData = nullptr;
     // 两个delete，可以通过直接用PObjectRefInfo placement new的方式优化，但需要p-api新增api