diff --git a/Makefile b/Makefile
index f8205ab9d..3eaef2370 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 # TODO(mrcyjanek): Cleanup, this is borrowed from unnamed_monero_wallet repo.
 
-MONERO_C_TAG=v0.18.3.3-RC21
+MONERO_C_TAG=v0.18.3.3-RC27
 LIBCPP_SHARED_SO_TAG=latest-RC1
 LIBCPP_SHARED_SO_NDKVERSION=r17c
 
diff --git a/cw_monero/example/pubspec.lock b/cw_monero/example/pubspec.lock
index e2dd94d7a..f7aa1e104 100644
--- a/cw_monero/example/pubspec.lock
+++ b/cw_monero/example/pubspec.lock
@@ -245,8 +245,8 @@ packages:
     dependency: transitive
     description:
       path: "."
-      ref: master
-      resolved-ref: "08c5a32cbcf1f04dbae5826c83abda8fb0dbdcce"
+      ref: ada81417cb53d8b0e34022df1dd3d9dc1fe62ab5
+      resolved-ref: ada81417cb53d8b0e34022df1dd3d9dc1fe62ab5
       url: "https://git.mrcyjanek.net/mrcyjanek/monero.dart"
     source: git
     version: "0.0.0"
diff --git a/cw_monero/lib/api/account_list.dart b/cw_monero/lib/api/account_list.dart
index ae94d16ea..199896631 100644
--- a/cw_monero/lib/api/account_list.dart
+++ b/cw_monero/lib/api/account_list.dart
@@ -2,6 +2,18 @@ import 'package:cw_monero/api/wallet.dart';
 import 'package:monero/monero.dart' as monero;
 
 monero.wallet? wptr = null;
+
+int _wlptrForW = 0;
+monero.WalletListener? _wlptr = null;
+
+monero.WalletListener getWlptr() {
+  if (wptr!.address == _wlptrForW) return _wlptr!;
+  _wlptrForW = wptr!.address;
+  _wlptr = monero.MONERO_cw_getWalletListener(wptr!);
+  return _wlptr!;
+}
+
+
 monero.SubaddressAccount? subaddressAccount;
 
 bool isUpdating = false;
diff --git a/cw_monero/lib/api/structs/pending_transaction.dart b/cw_monero/lib/api/structs/pending_transaction.dart
index 656ed333f..dc5fbddd0 100644
--- a/cw_monero/lib/api/structs/pending_transaction.dart
+++ b/cw_monero/lib/api/structs/pending_transaction.dart
@@ -1,25 +1,3 @@
-import 'dart:ffi';
-import 'package:ffi/ffi.dart';
-
-class PendingTransactionRaw extends Struct {
-  @Int64()
-  external int amount;
-
-  @Int64()
-  external int fee;
-
-  external Pointer<Utf8> hash;
-
-  external Pointer<Utf8> hex;
-
-  external Pointer<Utf8> txKey;
-
-  String getHash() => hash.toDartString();
-
-  String getHex() => hex.toDartString();
-
-  String getKey() => txKey.toDartString();
-}
 
 class PendingTransactionDescription {
   PendingTransactionDescription({
diff --git a/cw_monero/lib/api/subaddress_list.dart b/cw_monero/lib/api/subaddress_list.dart
index a172b93c4..57edea76e 100644
--- a/cw_monero/lib/api/subaddress_list.dart
+++ b/cw_monero/lib/api/subaddress_list.dart
@@ -1,14 +1,23 @@
+
 import 'package:cw_monero/api/account_list.dart';
 import 'package:cw_monero/api/wallet.dart';
 import 'package:monero/monero.dart' as monero;
 
 bool isUpdating = false;
-monero.Subaddress? subaddressPtr = null;
+
+class SubaddressInfoMetadata {
+  SubaddressInfoMetadata({
+    required this.accountIndex,
+  });
+  int accountIndex;
+}
+
+SubaddressInfoMetadata? subaddress = null;
+
 void refreshSubaddresses({required int accountIndex}) {
   try {
     isUpdating = true;
-    subaddressPtr = monero.Wallet_subaddress(wptr!);
-    monero.Subaddress_refresh(subaddressPtr!,accountIndex: accountIndex, label: '');
+    subaddress = SubaddressInfoMetadata(accountIndex: accountIndex);
     isUpdating = false;
   } catch (e) {
     isUpdating = false;
@@ -16,17 +25,29 @@ void refreshSubaddresses({required int accountIndex}) {
   }
 }
 
-List<monero.SubaddressRow> getAllSubaddresses() {
-  monero.Subaddress_refresh(subaddressPtr!, 
-  accountIndex: 0,
-  label: '' // BUG: by me (mrcyjanek), it isn't used, will remove.
-  );
-  final size = monero.Subaddress_getAll_size(subaddressPtr!);
-
-
-  return List.generate(size, (index) {
-    return monero.Subaddress_getAll_byIndex(subaddressAccount!, index: index);
+class Subaddress {
+  Subaddress({
+    required this.addressIndex,
+    required this.accountIndex,
   });
+  String get address => monero.Wallet_address(
+        wptr!,
+        accountIndex: accountIndex,
+        addressIndex: addressIndex,
+    );
+  final int addressIndex;
+  final int accountIndex;
+  String get label => monero.Wallet_getSubaddressLabel(wptr!, accountIndex: accountIndex, addressIndex: addressIndex);
+}
+
+List<Subaddress> getAllSubaddresses() {
+  final size = monero.Wallet_numSubaddresses(wptr!, accountIndex: subaddress!.accountIndex);
+  return List.generate(size, (index) {
+    return Subaddress(
+      accountIndex: subaddress!.accountIndex,
+      addressIndex: index,
+    );
+  }).reversed.toList();
 }
 
 void addSubaddressSync({required int accountIndex, required String label}) {
diff --git a/cw_monero/lib/api/transaction_history.dart b/cw_monero/lib/api/transaction_history.dart
index 4dff7dfe3..020b19981 100644
--- a/cw_monero/lib/api/transaction_history.dart
+++ b/cw_monero/lib/api/transaction_history.dart
@@ -1,10 +1,8 @@
-import 'dart:ffi';
 
 import 'package:cw_monero/api/account_list.dart';
 import 'package:cw_monero/api/exceptions/creation_transaction_exception.dart';
 import 'package:cw_monero/api/monero_output.dart';
 import 'package:cw_monero/api/structs/pending_transaction.dart';
-import 'package:ffi/ffi.dart';
 import 'package:monero/monero.dart' as monero;
 
 
@@ -39,16 +37,6 @@ PendingTransactionDescription createTransactionSync(
     String? amount,
     int accountIndex = 0,
     List<String> preferredInputs = const []}) {
-  final amountPointer = amount != null ? amount.toNativeUtf8() : nullptr;
-
-  final int preferredInputsSize = preferredInputs.length;
-  final List<Pointer<Utf8>> preferredInputsPointers =
-      preferredInputs.map((output) => output.toNativeUtf8()).toList();
-  final Pointer<Pointer<Utf8>> preferredInputsPointerPointer = calloc(preferredInputsSize);
-
-  for (int i = 0; i < preferredInputsSize; i++) {
-    preferredInputsPointerPointer[i] = preferredInputsPointers[i];
-  }
 
   final amt = amount == null ? 0 : monero.Wallet_amountFromString(amount);
   final pendingTx = monero.Wallet_createTransaction(
@@ -74,12 +62,17 @@ PendingTransactionDescription createTransactionSync(
     throw CreationTransactionException(message: message);
   }
 
+  final rAmt = monero.PendingTransaction_amount(pendingTx);
+  final rFee = monero.PendingTransaction_fee(pendingTx);
+  final rHash = monero.PendingTransaction_txid(pendingTx, '');
+  final rTxKey = rHash;
+
   return PendingTransactionDescription(
-      amount: monero.PendingTransaction_amount(wptr!),
-      fee: monero.PendingTransaction_fee(wptr!),
-      hash: monero.PendingTransaction_txid(wptr!, ''),
+      amount: rAmt,
+      fee: rFee,
+      hash: rHash,
       hex: '',
-      txKey: monero.PendingTransaction_txid(wptr!, ''),
+      txKey: rTxKey,
       pointerAddress: pendingTx.address,
     );
 }
diff --git a/cw_monero/lib/api/types.dart b/cw_monero/lib/api/types.dart
deleted file mode 100644
index 40a1e0321..000000000
--- a/cw_monero/lib/api/types.dart
+++ /dev/null
@@ -1,153 +0,0 @@
-import 'dart:ffi';
-import 'package:cw_monero/api/structs/coins_info_row.dart';
-import 'package:cw_monero/api/structs/pending_transaction.dart';
-import 'package:cw_monero/api/structs/transaction_info_row.dart';
-import 'package:cw_monero/api/structs/ut8_box.dart';
-import 'package:ffi/ffi.dart';
-
-typedef CreateWallet = int Function(
-    Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>, int, Pointer<Utf8>);
-
-typedef RestoreWalletFromSeed = int Function(
-    Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>, int, int, Pointer<Utf8>);
-
-typedef RestoreWalletFromKeys = int Function(Pointer<Utf8>, Pointer<Utf8>,
-    Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>, int, int, Pointer<Utf8>);
-
-typedef RestoreWalletFromSpendKey = int Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>,
-    Pointer<Utf8>, Pointer<Utf8>, int, int, Pointer<Utf8>);
-
-typedef IsWalletExist = int Function(Pointer<Utf8>);
-
-typedef LoadWallet = int Function(Pointer<Utf8>, Pointer<Utf8>, int);
-
-typedef ErrorString = Pointer<Utf8> Function();
-
-typedef GetFilename = Pointer<Utf8> Function();
-
-typedef GetSeed = Pointer<Utf8> Function();
-
-typedef GetAddress = Pointer<Utf8> Function(int, int);
-
-typedef GetFullBalance = int Function(int);
-
-typedef GetUnlockedBalance = int Function(int);
-
-typedef GetCurrentHeight = int Function();
-
-typedef GetNodeHeight = int Function();
-
-typedef IsConnected = int Function();
-
-typedef SetupNode = int Function(
-    Pointer<Utf8>, Pointer<Utf8>?, Pointer<Utf8>?, int, int, Pointer<Utf8>?, Pointer<Utf8>);
-
-typedef StartRefresh = void Function();
-
-typedef ConnectToNode = int Function();
-
-typedef SetRefreshFromBlockHeight = void Function(int);
-
-typedef SetRecoveringFromSeed = void Function(int);
-
-typedef Store = void Function(Pointer<Utf8>);
-
-typedef SetPassword = int Function(Pointer<Utf8> password, Pointer<Utf8Box> error);
-
-typedef SetListener = void Function();
-
-typedef GetSyncingHeight = int Function();
-
-typedef IsNeededToRefresh = int Function();
-
-typedef IsNewTransactionExist = int Function();
-
-typedef SubaddressSize = int Function();
-
-typedef SubaddressRefresh = void Function(int);
-
-typedef SubaddressGetAll = Pointer<Int64> Function();
-
-typedef SubaddressAddNew = void Function(int accountIndex, Pointer<Utf8> label);
-
-typedef SubaddressSetLabel = void Function(
-    int accountIndex, int addressIndex, Pointer<Utf8> label);
-
-typedef AccountSize = int Function();
-
-typedef AccountRefresh = void Function();
-
-typedef AccountGetAll = Pointer<Int64> Function();
-
-typedef AccountAddNew = void Function(Pointer<Utf8> label);
-
-typedef AccountSetLabel = void Function(int accountIndex, Pointer<Utf8> label);
-
-typedef TransactionsRefresh = void Function();
-
-typedef GetTransaction = Pointer<TransactionInfoRow> Function(Pointer<Utf8> txId);
-
-typedef GetTxKey = Pointer<Utf8>? Function(Pointer<Utf8> txId);
-
-typedef TransactionsCount = int Function();
-
-typedef TransactionsGetAll = Pointer<Int64> Function();
-
-typedef TransactionCreate = int Function(
-    Pointer<Utf8> address,
-    Pointer<Utf8> paymentId,
-    Pointer<Utf8> amount,
-    int priorityRaw,
-    int subaddrAccount,
-    Pointer<Pointer<Utf8>> preferredInputs,
-    int preferredInputsSize,
-    Pointer<Utf8Box> error,
-    Pointer<PendingTransactionRaw> pendingTransaction);
-
-typedef TransactionCreateMultDest = int Function(
-    Pointer<Pointer<Utf8>> addresses,
-    Pointer<Utf8> paymentId,
-    Pointer<Pointer<Utf8>> amounts,
-    int size,
-    int priorityRaw,
-    int subaddrAccount,
-    Pointer<Pointer<Utf8>> preferredInputs,
-    int preferredInputsSize,
-    Pointer<Utf8Box> error,
-    Pointer<PendingTransactionRaw> pendingTransaction);
-
-typedef TransactionCommit = int Function(Pointer<PendingTransactionRaw>, Pointer<Utf8Box>);
-
-typedef SecretViewKey = Pointer<Utf8> Function();
-
-typedef PublicViewKey = Pointer<Utf8> Function();
-
-typedef SecretSpendKey = Pointer<Utf8> Function();
-
-typedef PublicSpendKey = Pointer<Utf8> Function();
-
-typedef CloseCurrentWallet = void Function();
-
-typedef OnStartup = void Function();
-
-typedef RescanBlockchainAsync = void Function();
-
-typedef GetSubaddressLabel = Pointer<Utf8> Function(
-    int accountIndex,
-    int addressIndex);
-
-typedef SetTrustedDaemon = void Function(int);
-
-typedef TrustedDaemon = int Function();
-
-typedef RefreshCoins = void Function(int);
-
-typedef CoinsCount = int Function();
-
-typedef GetCoin = Pointer<CoinsInfoRow> Function(int);
-
-typedef FreezeCoin = void Function(int);
-
-typedef ThawCoin = void Function(int);
-
-typedef SignMessage = Pointer<Utf8> Function(Pointer<Utf8>, Pointer<Utf8>);
diff --git a/cw_monero/lib/api/wallet.dart b/cw_monero/lib/api/wallet.dart
index 79b067768..0f354bea9 100644
--- a/cw_monero/lib/api/wallet.dart
+++ b/cw_monero/lib/api/wallet.dart
@@ -6,12 +6,19 @@ import 'package:monero/monero.dart' as monero;
 
 int _boolToInt(bool value) => value ? 1 : 0;
 
-int getSyncingHeight() => monero.Wallet_blockChainHeight(wptr!);
+int getSyncingHeight() => monero.MONERO_cw_WalletListener_height(getWlptr());
 
-bool isNeededToRefresh() => false; // TODO(mrcyjanek): ?
-
-bool isNewTransactionExist() => false;
+bool isNeededToRefresh() {
+  final ret = monero.MONERO_cw_WalletListener_isNeedToRefresh(getWlptr());
+  monero.MONERO_cw_WalletListener_resetNeedToRefresh(getWlptr());
+  return ret;
+}
 
+bool isNewTransactionExist() {
+  final ret = monero.MONERO_cw_WalletListener_isNewTransactionExist(getWlptr());
+  monero.MONERO_cw_WalletListener_resetIsNewTransactionExist(getWlptr());
+  return ret;
+}
 String getFilename() => monero.Wallet_filename(wptr!);
 
 // TODO(mrcyjanek): Cake polyseed support
diff --git a/cw_monero/lib/api/wallet_manager.dart b/cw_monero/lib/api/wallet_manager.dart
index 84860e642..aeacf2769 100644
--- a/cw_monero/lib/api/wallet_manager.dart
+++ b/cw_monero/lib/api/wallet_manager.dart
@@ -1,4 +1,6 @@
 
+import 'dart:ffi';
+
 import 'package:cw_monero/api/account_list.dart';
 import 'package:cw_monero/api/exceptions/wallet_creation_exception.dart';
 import 'package:cw_monero/api/exceptions/wallet_opening_exception.dart';
@@ -7,7 +9,6 @@ import 'package:cw_monero/api/exceptions/wallet_restore_from_seed_exception.dart
 import 'package:cw_monero/api/wallet.dart';
 import 'package:ffi/ffi.dart';
 import 'package:monero/monero.dart' as monero;
-import 'dart:ffi';
 
 monero.WalletManager? _wmPtr;
 final monero.WalletManager wmPtr = Pointer.fromAddress((() {
@@ -135,12 +136,20 @@ void restoreWalletFromSpendKeySync(
   storeSync();
 }
 
+String _lastOpenedWallet = "";
+
 void loadWallet({
   required String path,
   required String password,
   int nettype = 0}) {
   try {
-    wptr ??= monero.WalletManager_openWallet(wmPtr, path: path, password: password);
+    if (wptr == null || path != _lastOpenedWallet) {
+      if (wptr != null) {
+        monero.Wallet_store(wptr!);
+      }
+      wptr = monero.WalletManager_openWallet(wmPtr, path: path, password: password);
+      _lastOpenedWallet = path;
+    }
   } catch (e) {
     print(e);
   }
diff --git a/cw_monero/lib/monero_subaddress_list.dart b/cw_monero/lib/monero_subaddress_list.dart
index 2d3ecdb7e..676a9536c 100644
--- a/cw_monero/lib/monero_subaddress_list.dart
+++ b/cw_monero/lib/monero_subaddress_list.dart
@@ -1,9 +1,8 @@
-import 'package:flutter/services.dart';
-import 'package:mobx/mobx.dart';
+import 'package:cw_core/subaddress.dart';
 import 'package:cw_monero/api/coins_info.dart';
 import 'package:cw_monero/api/subaddress_list.dart' as subaddress_list;
-import 'package:cw_core/subaddress.dart';
-import 'package:monero/monero.dart' as monero;
+import 'package:flutter/services.dart';
+import 'package:mobx/mobx.dart';
 
 part 'monero_subaddress_list.g.dart';
 
@@ -51,10 +50,10 @@ abstract class MoneroSubaddressListBase with Store {
       subaddresses = [primary] + rest.toList();
     }
 
-    return subaddresses.map((subaddressRow) {
-      final label = monero.SubaddressRow_getLabel(subaddressRow);
-      final id = monero.SubaddressRow_getRowId(subaddressRow);
-      final address = monero.SubaddressRow_getAddress(subaddressRow);
+    return subaddresses.map((s) {
+      final address = s.address;
+      final label = s.label;
+      final id = s.addressIndex;
       final hasDefaultAddressName =
           label.toLowerCase() == 'Primary account'.toLowerCase() ||
               label.toLowerCase() == 'Untitled account'.toLowerCase();
@@ -125,7 +124,7 @@ abstract class MoneroSubaddressListBase with Store {
   Future<List<Subaddress>> _getAllUnusedAddresses(
       {required int accountIndex, required String label}) async {
     final allAddresses = subaddress_list.getAllSubaddresses();
-    final lastAddress = monero.SubaddressRow_getAddress(allAddresses.last);
+    final lastAddress = allAddresses.last.address;
     if (allAddresses.isEmpty || _usedAddresses.contains(lastAddress)) {
       final isAddressUnused = await _newSubaddress(accountIndex: accountIndex, label: label);
       if (!isAddressUnused) {
@@ -134,10 +133,10 @@ abstract class MoneroSubaddressListBase with Store {
     }
 
     return allAddresses
-        .map((subaddressRow) {
-          final id = monero.SubaddressRow_getRowId(subaddressRow);
-          final address = monero.SubaddressRow_getAddress(subaddressRow);
-          final label = monero.SubaddressRow_getLabel(subaddressRow);
+        .map((s) {
+          final id = s.addressIndex;
+          final address = s.address;
+          final label = s.label;
           return Subaddress(
             id: id,
             address: address,
@@ -154,8 +153,8 @@ abstract class MoneroSubaddressListBase with Store {
 
     return subaddress_list
         .getAllSubaddresses()
-        .where((subaddressRow) {
-          final address = monero.SubaddressRow_getAddress(subaddressRow);
+        .where((s) {
+          final address = s.address;
           return !_usedAddresses.contains(address);
         })
         .isNotEmpty;
diff --git a/cw_monero/pubspec.lock b/cw_monero/pubspec.lock
index 0faf7dab8..4ce0f7776 100644
--- a/cw_monero/pubspec.lock
+++ b/cw_monero/pubspec.lock
@@ -414,8 +414,8 @@ packages:
     dependency: "direct main"
     description:
       path: "."
-      ref: master
-      resolved-ref: "08c5a32cbcf1f04dbae5826c83abda8fb0dbdcce"
+      ref: ada81417cb53d8b0e34022df1dd3d9dc1fe62ab5
+      resolved-ref: ada81417cb53d8b0e34022df1dd3d9dc1fe62ab5
       url: "https://git.mrcyjanek.net/mrcyjanek/monero.dart"
     source: git
     version: "0.0.0"
diff --git a/cw_monero/pubspec.yaml b/cw_monero/pubspec.yaml
index e94b65067..6527dbee5 100644
--- a/cw_monero/pubspec.yaml
+++ b/cw_monero/pubspec.yaml
@@ -25,7 +25,7 @@ dependencies:
   monero:
     git:
       url: https://git.mrcyjanek.net/mrcyjanek/monero.dart
-      ref: master
+      ref: ada81417cb53d8b0e34022df1dd3d9dc1fe62ab5
 
 dev_dependencies:
   flutter_test: