diff --git a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/rpc.pb.swift b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/rpc.pb.swift
index ab9499d1..0ceb8a1a 100644
--- a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/rpc.pb.swift
+++ b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/rpc.pb.swift
@@ -229,9 +229,24 @@ public struct Ocap_ResponseGetBlocks {
   fileprivate var _page: Ocap_PageInfo? = nil
 }
 
-/// get_account_state(address, key): retrieve the current state from a list of
-/// wallet addresses, return the value of the key. If key is omitted, return
-/// entire account states
+public struct Ocap_RequestGetAccountState {
+  // SwiftProtobuf.Message conformance is added in an extension below. See the
+  // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
+  // methods supported on all messages.
+
+  public var address: String = String()
+
+  public var keys: [String] = []
+
+  public var height: UInt64 = 0
+
+  public var traceMigration: Bool = false
+
+  public var unknownFields = SwiftProtobuf.UnknownStorage()
+
+  public init() {}
+}
+
 public struct Ocap_ResponseGetAccountState {
   // SwiftProtobuf.Message conformance is added in an extension below. See the
   // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
@@ -596,6 +611,15 @@ public struct Ocap_RequestListTransactions {
   /// Clears the value of `stakeFilter`. Subsequent reads from it will return its default value.
   public mutating func clearStakeFilter() {_uniqueStorage()._stakeFilter = nil}
 
+  public var delegationFilter: Ocap_DelegationFilter {
+    get {return _storage._delegationFilter ?? Ocap_DelegationFilter()}
+    set {_uniqueStorage()._delegationFilter = newValue}
+  }
+  /// Returns true if `delegationFilter` has been explicitly set.
+  public var hasDelegationFilter: Bool {return _storage._delegationFilter != nil}
+  /// Clears the value of `delegationFilter`. Subsequent reads from it will return its default value.
+  public mutating func clearDelegationFilter() {_uniqueStorage()._delegationFilter = nil}
+
   public var unknownFields = SwiftProtobuf.UnknownStorage()
 
   public init() {}
@@ -1575,6 +1599,66 @@ public struct Ocap_ResponseEstimateGas {
   fileprivate var _estimate: Ocap_GasEstimate? = nil
 }
 
+public struct Ocap_RequestListDelegations {
+  // SwiftProtobuf.Message conformance is added in an extension below. See the
+  // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
+  // methods supported on all messages.
+
+  public var paging: Ocap_Page {
+    get {return _paging ?? Ocap_Page()}
+    set {_paging = newValue}
+  }
+  /// Returns true if `paging` has been explicitly set.
+  public var hasPaging: Bool {return self._paging != nil}
+  /// Clears the value of `paging`. Subsequent reads from it will return its default value.
+  public mutating func clearPaging() {self._paging = nil}
+
+  public var from: String = String()
+
+  public var to: String = String()
+
+  public var timeFilter: Ocap_TimeFilter {
+    get {return _timeFilter ?? Ocap_TimeFilter()}
+    set {_timeFilter = newValue}
+  }
+  /// Returns true if `timeFilter` has been explicitly set.
+  public var hasTimeFilter: Bool {return self._timeFilter != nil}
+  /// Clears the value of `timeFilter`. Subsequent reads from it will return its default value.
+  public mutating func clearTimeFilter() {self._timeFilter = nil}
+
+  public var unknownFields = SwiftProtobuf.UnknownStorage()
+
+  public init() {}
+
+  fileprivate var _paging: Ocap_Page? = nil
+  fileprivate var _timeFilter: Ocap_TimeFilter? = nil
+}
+
+public struct Ocap_ResponseListDelegations {
+  // SwiftProtobuf.Message conformance is added in an extension below. See the
+  // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
+  // methods supported on all messages.
+
+  public var code: Ocap_StatusCode = .ok
+
+  public var page: Ocap_PageInfo {
+    get {return _page ?? Ocap_PageInfo()}
+    set {_page = newValue}
+  }
+  /// Returns true if `page` has been explicitly set.
+  public var hasPage: Bool {return self._page != nil}
+  /// Clears the value of `page`. Subsequent reads from it will return its default value.
+  public mutating func clearPage() {self._page = nil}
+
+  public var delegations: [Ocap_IndexedDelegationState] = []
+
+  public var unknownFields = SwiftProtobuf.UnknownStorage()
+
+  public init() {}
+
+  fileprivate var _page: Ocap_PageInfo? = nil
+}
+
 // MARK: - Code below here is support for the SwiftProtobuf runtime.
 
 fileprivate let _protobuf_package = "ocap"
@@ -1997,6 +2081,56 @@ extension Ocap_ResponseGetBlocks: SwiftProtobuf.Message, SwiftProtobuf._MessageI
   }
 }
 
+extension Ocap_RequestGetAccountState: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
+  public static let protoMessageName: String = _protobuf_package + ".RequestGetAccountState"
+  public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
+    1: .same(proto: "address"),
+    2: .same(proto: "keys"),
+    3: .same(proto: "height"),
+    4: .standard(proto: "trace_migration"),
+  ]
+
+  public mutating func decodeMessage<D: SwiftProtobuf.Decoder>(decoder: inout D) throws {
+    while let fieldNumber = try decoder.nextFieldNumber() {
+      // The use of inline closures is to circumvent an issue where the compiler
+      // allocates stack space for every case branch when no optimizations are
+      // enabled. https://github.com/apple/swift-protobuf/issues/1034
+      switch fieldNumber {
+      case 1: try { try decoder.decodeSingularStringField(value: &self.address) }()
+      case 2: try { try decoder.decodeRepeatedStringField(value: &self.keys) }()
+      case 3: try { try decoder.decodeSingularUInt64Field(value: &self.height) }()
+      case 4: try { try decoder.decodeSingularBoolField(value: &self.traceMigration) }()
+      default: break
+      }
+    }
+  }
+
+  public func traverse<V: SwiftProtobuf.Visitor>(visitor: inout V) throws {
+    if !self.address.isEmpty {
+      try visitor.visitSingularStringField(value: self.address, fieldNumber: 1)
+    }
+    if !self.keys.isEmpty {
+      try visitor.visitRepeatedStringField(value: self.keys, fieldNumber: 2)
+    }
+    if self.height != 0 {
+      try visitor.visitSingularUInt64Field(value: self.height, fieldNumber: 3)
+    }
+    if self.traceMigration != false {
+      try visitor.visitSingularBoolField(value: self.traceMigration, fieldNumber: 4)
+    }
+    try unknownFields.traverse(visitor: &visitor)
+  }
+
+  public static func ==(lhs: Ocap_RequestGetAccountState, rhs: Ocap_RequestGetAccountState) -> Bool {
+    if lhs.address != rhs.address {return false}
+    if lhs.keys != rhs.keys {return false}
+    if lhs.height != rhs.height {return false}
+    if lhs.traceMigration != rhs.traceMigration {return false}
+    if lhs.unknownFields != rhs.unknownFields {return false}
+    return true
+  }
+}
+
 extension Ocap_ResponseGetAccountState: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
   public static let protoMessageName: String = _protobuf_package + ".ResponseGetAccountState"
   public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
@@ -2500,6 +2634,7 @@ extension Ocap_RequestListTransactions: SwiftProtobuf.Message, SwiftProtobuf._Me
     10: .standard(proto: "tx_filter"),
     11: .standard(proto: "rollup_filter"),
     12: .standard(proto: "stake_filter"),
+    13: .standard(proto: "delegation_filter"),
   ]
 
   fileprivate class _StorageClass {
@@ -2515,6 +2650,7 @@ extension Ocap_RequestListTransactions: SwiftProtobuf.Message, SwiftProtobuf._Me
     var _txFilter: Ocap_TxFilter? = nil
     var _rollupFilter: Ocap_RollupFilter? = nil
     var _stakeFilter: Ocap_StakeFilter? = nil
+    var _delegationFilter: Ocap_DelegationFilter? = nil
 
     static let defaultInstance = _StorageClass()
 
@@ -2533,6 +2669,7 @@ extension Ocap_RequestListTransactions: SwiftProtobuf.Message, SwiftProtobuf._Me
       _txFilter = source._txFilter
       _rollupFilter = source._rollupFilter
       _stakeFilter = source._stakeFilter
+      _delegationFilter = source._delegationFilter
     }
   }
 
@@ -2563,6 +2700,7 @@ extension Ocap_RequestListTransactions: SwiftProtobuf.Message, SwiftProtobuf._Me
         case 10: try { try decoder.decodeSingularMessageField(value: &_storage._txFilter) }()
         case 11: try { try decoder.decodeSingularMessageField(value: &_storage._rollupFilter) }()
         case 12: try { try decoder.decodeSingularMessageField(value: &_storage._stakeFilter) }()
+        case 13: try { try decoder.decodeSingularMessageField(value: &_storage._delegationFilter) }()
         default: break
         }
       }
@@ -2611,6 +2749,9 @@ extension Ocap_RequestListTransactions: SwiftProtobuf.Message, SwiftProtobuf._Me
       try { if let v = _storage._stakeFilter {
         try visitor.visitSingularMessageField(value: v, fieldNumber: 12)
       } }()
+      try { if let v = _storage._delegationFilter {
+        try visitor.visitSingularMessageField(value: v, fieldNumber: 13)
+      } }()
     }
     try unknownFields.traverse(visitor: &visitor)
   }
@@ -2632,6 +2773,7 @@ extension Ocap_RequestListTransactions: SwiftProtobuf.Message, SwiftProtobuf._Me
         if _storage._txFilter != rhs_storage._txFilter {return false}
         if _storage._rollupFilter != rhs_storage._rollupFilter {return false}
         if _storage._stakeFilter != rhs_storage._stakeFilter {return false}
+        if _storage._delegationFilter != rhs_storage._delegationFilter {return false}
         return true
       }
       if !storagesAreEqual {return false}
@@ -4318,3 +4460,105 @@ extension Ocap_ResponseEstimateGas: SwiftProtobuf.Message, SwiftProtobuf._Messag
     return true
   }
 }
+
+extension Ocap_RequestListDelegations: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
+  public static let protoMessageName: String = _protobuf_package + ".RequestListDelegations"
+  public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
+    1: .same(proto: "paging"),
+    2: .same(proto: "from"),
+    3: .same(proto: "to"),
+    4: .standard(proto: "time_filter"),
+  ]
+
+  public mutating func decodeMessage<D: SwiftProtobuf.Decoder>(decoder: inout D) throws {
+    while let fieldNumber = try decoder.nextFieldNumber() {
+      // The use of inline closures is to circumvent an issue where the compiler
+      // allocates stack space for every case branch when no optimizations are
+      // enabled. https://github.com/apple/swift-protobuf/issues/1034
+      switch fieldNumber {
+      case 1: try { try decoder.decodeSingularMessageField(value: &self._paging) }()
+      case 2: try { try decoder.decodeSingularStringField(value: &self.from) }()
+      case 3: try { try decoder.decodeSingularStringField(value: &self.to) }()
+      case 4: try { try decoder.decodeSingularMessageField(value: &self._timeFilter) }()
+      default: break
+      }
+    }
+  }
+
+  public func traverse<V: SwiftProtobuf.Visitor>(visitor: inout V) throws {
+    // The use of inline closures is to circumvent an issue where the compiler
+    // allocates stack space for every if/case branch local when no optimizations
+    // are enabled. https://github.com/apple/swift-protobuf/issues/1034 and
+    // https://github.com/apple/swift-protobuf/issues/1182
+    try { if let v = self._paging {
+      try visitor.visitSingularMessageField(value: v, fieldNumber: 1)
+    } }()
+    if !self.from.isEmpty {
+      try visitor.visitSingularStringField(value: self.from, fieldNumber: 2)
+    }
+    if !self.to.isEmpty {
+      try visitor.visitSingularStringField(value: self.to, fieldNumber: 3)
+    }
+    try { if let v = self._timeFilter {
+      try visitor.visitSingularMessageField(value: v, fieldNumber: 4)
+    } }()
+    try unknownFields.traverse(visitor: &visitor)
+  }
+
+  public static func ==(lhs: Ocap_RequestListDelegations, rhs: Ocap_RequestListDelegations) -> Bool {
+    if lhs._paging != rhs._paging {return false}
+    if lhs.from != rhs.from {return false}
+    if lhs.to != rhs.to {return false}
+    if lhs._timeFilter != rhs._timeFilter {return false}
+    if lhs.unknownFields != rhs.unknownFields {return false}
+    return true
+  }
+}
+
+extension Ocap_ResponseListDelegations: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
+  public static let protoMessageName: String = _protobuf_package + ".ResponseListDelegations"
+  public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
+    1: .same(proto: "code"),
+    2: .same(proto: "page"),
+    3: .same(proto: "delegations"),
+  ]
+
+  public mutating func decodeMessage<D: SwiftProtobuf.Decoder>(decoder: inout D) throws {
+    while let fieldNumber = try decoder.nextFieldNumber() {
+      // The use of inline closures is to circumvent an issue where the compiler
+      // allocates stack space for every case branch when no optimizations are
+      // enabled. https://github.com/apple/swift-protobuf/issues/1034
+      switch fieldNumber {
+      case 1: try { try decoder.decodeSingularEnumField(value: &self.code) }()
+      case 2: try { try decoder.decodeSingularMessageField(value: &self._page) }()
+      case 3: try { try decoder.decodeRepeatedMessageField(value: &self.delegations) }()
+      default: break
+      }
+    }
+  }
+
+  public func traverse<V: SwiftProtobuf.Visitor>(visitor: inout V) throws {
+    // The use of inline closures is to circumvent an issue where the compiler
+    // allocates stack space for every if/case branch local when no optimizations
+    // are enabled. https://github.com/apple/swift-protobuf/issues/1034 and
+    // https://github.com/apple/swift-protobuf/issues/1182
+    if self.code != .ok {
+      try visitor.visitSingularEnumField(value: self.code, fieldNumber: 1)
+    }
+    try { if let v = self._page {
+      try visitor.visitSingularMessageField(value: v, fieldNumber: 2)
+    } }()
+    if !self.delegations.isEmpty {
+      try visitor.visitRepeatedMessageField(value: self.delegations, fieldNumber: 3)
+    }
+    try unknownFields.traverse(visitor: &visitor)
+  }
+
+  public static func ==(lhs: Ocap_ResponseListDelegations, rhs: Ocap_ResponseListDelegations) -> Bool {
+    if lhs.code != rhs.code {return false}
+    if lhs._page != rhs._page {return false}
+    if lhs.delegations != rhs.delegations {return false}
+    if lhs.unknownFields != rhs.unknownFields {return false}
+    return true
+  }
+}
diff --git a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/rpc.proto b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/rpc.proto
index 34e07c11..f7e11dae 100644
--- a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/rpc.proto
+++ b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/rpc.proto
@@ -52,9 +52,12 @@ message ResponseGetBlocks {
   repeated BlockInfoSimple blocks = 3;
 }
 
-// get_account_state(address, key): retrieve the current state from a list of
-// wallet addresses, return the value of the key. If key is omitted, return
-// entire account states
+message RequestGetAccountState {
+  string address = 1;
+  repeated string keys = 2;
+  uint64 height = 3;
+  bool trace_migration = 4;
+}
 message ResponseGetAccountState {
   StatusCode code = 1;
   AccountState state = 2;
@@ -125,6 +128,7 @@ message RequestListTransactions {
   TxFilter tx_filter = 10;
   RollupFilter rollup_filter = 11;
   StakeFilter stake_filter = 12;
+  DelegationFilter delegation_filter = 13;
 }
 message ResponseListTransactions {
   StatusCode code = 1;
@@ -324,3 +328,15 @@ message ResponseEstimateGas {
   StatusCode code = 1;
   GasEstimate estimate = 2;
 }
+
+message RequestListDelegations {
+  Page paging = 1;
+  string from = 2;
+  string to = 3;
+  TimeFilter time_filter = 4;
+}
+message ResponseListDelegations {
+  StatusCode code = 1;
+  PageInfo page = 2;
+  repeated IndexedDelegationState delegations = 3;
+}
diff --git a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/service.graphqls b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/service.graphqls
index 732429f0..8b80a09f 100644
--- a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/service.graphqls
+++ b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/service.graphqls
@@ -37,7 +37,7 @@ type RootMutationType {
 }
 
 type RootQueryType {
-  getAccountState(address: String, height: String, keys: [String]): ResponseGetAccountState
+  getAccountState(address: String, height: String, keys: [String], traceMigration: Boolean): ResponseGetAccountState
   getAssetState(address: String, height: String, keys: [String]): ResponseGetAssetState
   getFactoryState(address: String): ResponseGetFactoryState
   getDelegateState(address: String, height: String, keys: [String]): ResponseGetDelegateState
@@ -86,6 +86,7 @@ type RootQueryType {
     txFilter: TxFilterInput
     rollupFilter: RollupFilterInput
     stakeFilter: StakeFilterInput
+    delegationFilter: DelegationFilterInput
   ): ResponseListTransactions
 
   # since 1.7.0
@@ -129,6 +130,8 @@ type RootQueryType {
   ): ResponseListRollupBlocks
   listRollupValidators(paging: PageInput, rollupAddress: String): ResponseListRollupValidators
 
+  listDelegations(from: String, to: String, paging: PageInput, timeFilter: TimeFilterInput): ResponseListDelegations
+
   # since v1.13.17
   search(paging: PageInput, keyword: String): ResponseSearch
 
diff --git a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/service.proto b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/service.proto
index a402dfe9..c1d59ba6 100644
--- a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/service.proto
+++ b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/service.proto
@@ -20,7 +20,7 @@ service Query {
   rpc getForgeStats(RequestEmpty) returns (ResponseGetForgeStats);
 
   // state related
-  rpc getAccountState(stream RequestGetState) returns (stream ResponseGetAccountState);
+  rpc getAccountState(stream RequestGetAccountState) returns (stream ResponseGetAccountState);
   rpc getAssetState(stream RequestGetState) returns (stream ResponseGetAssetState);
   rpc getFactoryState(stream RequestGetState) returns (stream ResponseGetFactoryState);
   rpc getForgeState(RequestGetState) returns (ResponseGetForgeState);
@@ -54,6 +54,9 @@ service Query {
   rpc listRollupBlocks(RequestListRollupBlocks) returns (ResponseListRollupBlocks);
   rpc listRollupValidators(RequestListRollupValidators) returns (ResponseListRollupValidators);
 
+  // delegation
+  rpc listDelegations(RequestListDelegations) returns (ResponseListDelegations);
+
   // search
   rpc search(RequestSearch) returns (ResponseSearch);
 
diff --git a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/state.pb.swift b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/state.pb.swift
index 204b1558..0c9a7c7d 100644
--- a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/state.pb.swift
+++ b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/state.pb.swift
@@ -356,16 +356,11 @@ public struct Ocap_RootState {
   public init() {}
 }
 
-/// a rule can check against the statistics values, e.g. state.num_txs < 10000,
-/// state.balance_delta < 50000, delta is calculated based on the
-/// configuration for interval.
 public struct Ocap_DelegateOpState {
   // SwiftProtobuf.Message conformance is added in an extension below. See the
   // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
   // methods supported on all messages.
 
-  /// all the individual rules in DelegateTx will be concat into one per type_url
-  /// by "AND"
   public var rule: String = String()
 
   public var numTxs: UInt64 = 0
@@ -390,12 +385,23 @@ public struct Ocap_DelegateOpState {
   /// Clears the value of `balanceDelta`. Subsequent reads from it will return its default value.
   public mutating func clearBalanceDelta() {self._balanceDelta = nil}
 
+  /// since v1.18.96
+  public var limit: Ocap_DelegateLimit {
+    get {return _limit ?? Ocap_DelegateLimit()}
+    set {_limit = newValue}
+  }
+  /// Returns true if `limit` has been explicitly set.
+  public var hasLimit: Bool {return self._limit != nil}
+  /// Clears the value of `limit`. Subsequent reads from it will return its default value.
+  public mutating func clearLimit() {self._limit = nil}
+
   public var unknownFields = SwiftProtobuf.UnknownStorage()
 
   public init() {}
 
   fileprivate var _balance: Ocap_BigUint? = nil
   fileprivate var _balanceDelta: Ocap_BigUint? = nil
+  fileprivate var _limit: Ocap_DelegateLimit? = nil
 }
 
 public struct Ocap_DelegateState {
@@ -407,6 +413,10 @@ public struct Ocap_DelegateState {
 
   public var ops: Dictionary<String,Ocap_DelegateOpState> = [:]
 
+  public var from: String = String()
+
+  public var to: String = String()
+
   /// state context, replace exiting fields
   public var context: Ocap_StateContext {
     get {return _context ?? Ocap_StateContext()}
@@ -1734,6 +1744,7 @@ extension Ocap_DelegateOpState: SwiftProtobuf.Message, SwiftProtobuf._MessageImp
     3: .standard(proto: "num_txs_delta"),
     4: .same(proto: "balance"),
     5: .standard(proto: "balance_delta"),
+    6: .same(proto: "limit"),
   ]
 
   public mutating func decodeMessage<D: SwiftProtobuf.Decoder>(decoder: inout D) throws {
@@ -1747,6 +1758,7 @@ extension Ocap_DelegateOpState: SwiftProtobuf.Message, SwiftProtobuf._MessageImp
       case 3: try { try decoder.decodeSingularUInt64Field(value: &self.numTxsDelta) }()
       case 4: try { try decoder.decodeSingularMessageField(value: &self._balance) }()
       case 5: try { try decoder.decodeSingularMessageField(value: &self._balanceDelta) }()
+      case 6: try { try decoder.decodeSingularMessageField(value: &self._limit) }()
       default: break
       }
     }
@@ -1772,6 +1784,9 @@ extension Ocap_DelegateOpState: SwiftProtobuf.Message, SwiftProtobuf._MessageImp
     try { if let v = self._balanceDelta {
       try visitor.visitSingularMessageField(value: v, fieldNumber: 5)
     } }()
+    try { if let v = self._limit {
+      try visitor.visitSingularMessageField(value: v, fieldNumber: 6)
+    } }()
     try unknownFields.traverse(visitor: &visitor)
   }
 
@@ -1781,6 +1796,7 @@ extension Ocap_DelegateOpState: SwiftProtobuf.Message, SwiftProtobuf._MessageImp
     if lhs.numTxsDelta != rhs.numTxsDelta {return false}
     if lhs._balance != rhs._balance {return false}
     if lhs._balanceDelta != rhs._balanceDelta {return false}
+    if lhs._limit != rhs._limit {return false}
     if lhs.unknownFields != rhs.unknownFields {return false}
     return true
   }
@@ -1791,6 +1807,8 @@ extension Ocap_DelegateState: SwiftProtobuf.Message, SwiftProtobuf._MessageImple
   public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
     1: .same(proto: "address"),
     2: .same(proto: "ops"),
+    3: .same(proto: "from"),
+    4: .same(proto: "to"),
     14: .same(proto: "context"),
     15: .same(proto: "data"),
   ]
@@ -1803,6 +1821,8 @@ extension Ocap_DelegateState: SwiftProtobuf.Message, SwiftProtobuf._MessageImple
       switch fieldNumber {
       case 1: try { try decoder.decodeSingularStringField(value: &self.address) }()
       case 2: try { try decoder.decodeMapField(fieldType: SwiftProtobuf._ProtobufMessageMap<SwiftProtobuf.ProtobufString,Ocap_DelegateOpState>.self, value: &self.ops) }()
+      case 3: try { try decoder.decodeSingularStringField(value: &self.from) }()
+      case 4: try { try decoder.decodeSingularStringField(value: &self.to) }()
       case 14: try { try decoder.decodeSingularMessageField(value: &self._context) }()
       case 15: try { try decoder.decodeSingularMessageField(value: &self._data) }()
       default: break
@@ -1821,6 +1841,12 @@ extension Ocap_DelegateState: SwiftProtobuf.Message, SwiftProtobuf._MessageImple
     if !self.ops.isEmpty {
       try visitor.visitMapField(fieldType: SwiftProtobuf._ProtobufMessageMap<SwiftProtobuf.ProtobufString,Ocap_DelegateOpState>.self, value: self.ops, fieldNumber: 2)
     }
+    if !self.from.isEmpty {
+      try visitor.visitSingularStringField(value: self.from, fieldNumber: 3)
+    }
+    if !self.to.isEmpty {
+      try visitor.visitSingularStringField(value: self.to, fieldNumber: 4)
+    }
     try { if let v = self._context {
       try visitor.visitSingularMessageField(value: v, fieldNumber: 14)
     } }()
@@ -1833,6 +1859,8 @@ extension Ocap_DelegateState: SwiftProtobuf.Message, SwiftProtobuf._MessageImple
   public static func ==(lhs: Ocap_DelegateState, rhs: Ocap_DelegateState) -> Bool {
     if lhs.address != rhs.address {return false}
     if lhs.ops != rhs.ops {return false}
+    if lhs.from != rhs.from {return false}
+    if lhs.to != rhs.to {return false}
     if lhs._context != rhs._context {return false}
     if lhs._data != rhs._data {return false}
     if lhs.unknownFields != rhs.unknownFields {return false}
diff --git a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/state.proto b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/state.proto
index cb358e13..61ff53c8 100644
--- a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/state.proto
+++ b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/state.proto
@@ -103,25 +103,24 @@ message RootState {
   bytes custom = 7;
 }
 
-// a rule can check against the statistics values, e.g. state.num_txs < 10000,
-// state.balance_delta < 50000, delta is calculated based on the
-// configuration for interval.
 message DelegateOpState {
-  // all the individual rules in DelegateTx will be concat into one per type_url
-  // by "AND"
-  string rule = 1;
-
-  uint64 num_txs = 2;
-  uint64 num_txs_delta = 3;
-
-  BigUint balance = 4;
-  BigUint balance_delta = 5;
+  string rule = 1 [ deprecated = true ];
+  uint64 num_txs = 2 [ deprecated = true ];
+  uint64 num_txs_delta = 3 [ deprecated = true ];
+  BigUint balance = 4 [ deprecated = true ];
+  BigUint balance_delta = 5 [ deprecated = true ];
+
+  // since v1.18.96
+  DelegateLimit limit = 6;
 }
 
 message DelegateState {
   string address = 1;
   map<string, DelegateOpState> ops = 2;
 
+  string from = 3;
+  string to = 4;
+
   // state context, replace exiting fields
   StateContext context = 14;
 
diff --git a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/trace-type.pb.swift b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/trace-type.pb.swift
index 7c90b37d..7f782d48 100644
--- a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/trace-type.pb.swift
+++ b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/trace-type.pb.swift
@@ -174,6 +174,18 @@ public struct Ocap_FactoryFilter {
   public init() {}
 }
 
+public struct Ocap_DelegationFilter {
+  // SwiftProtobuf.Message conformance is added in an extension below. See the
+  // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
+  // methods supported on all messages.
+
+  public var delegations: [String] = []
+
+  public var unknownFields = SwiftProtobuf.UnknownStorage()
+
+  public init() {}
+}
+
 public struct Ocap_TokenFilter {
   // SwiftProtobuf.Message conformance is added in an extension below. See the
   // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
@@ -1358,6 +1370,39 @@ public struct Ocap_IndexedRollupValidator {
   fileprivate var _storage = _StorageClass.defaultInstance
 }
 
+public struct Ocap_IndexedDelegationState {
+  // SwiftProtobuf.Message conformance is added in an extension below. See the
+  // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
+  // methods supported on all messages.
+
+  public var address: String = String()
+
+  public var from: String = String()
+
+  public var to: String = String()
+
+  public var genesisTime: String = String()
+
+  public var renaissanceTime: String = String()
+
+  public var ops: Dictionary<String,Ocap_DelegateOpState> = [:]
+
+  public var data: SwiftProtobuf.Google_Protobuf_Any {
+    get {return _data ?? SwiftProtobuf.Google_Protobuf_Any()}
+    set {_data = newValue}
+  }
+  /// Returns true if `data` has been explicitly set.
+  public var hasData: Bool {return self._data != nil}
+  /// Clears the value of `data`. Subsequent reads from it will return its default value.
+  public mutating func clearData() {self._data = nil}
+
+  public var unknownFields = SwiftProtobuf.UnknownStorage()
+
+  public init() {}
+
+  fileprivate var _data: SwiftProtobuf.Google_Protobuf_Any? = nil
+}
+
 // MARK: - Code below here is support for the SwiftProtobuf runtime.
 
 fileprivate let _protobuf_package = "ocap"
@@ -1556,6 +1601,38 @@ extension Ocap_FactoryFilter: SwiftProtobuf.Message, SwiftProtobuf._MessageImple
   }
 }
 
+extension Ocap_DelegationFilter: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
+  public static let protoMessageName: String = _protobuf_package + ".DelegationFilter"
+  public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
+    1: .same(proto: "delegations"),
+  ]
+
+  public mutating func decodeMessage<D: SwiftProtobuf.Decoder>(decoder: inout D) throws {
+    while let fieldNumber = try decoder.nextFieldNumber() {
+      // The use of inline closures is to circumvent an issue where the compiler
+      // allocates stack space for every case branch when no optimizations are
+      // enabled. https://github.com/apple/swift-protobuf/issues/1034
+      switch fieldNumber {
+      case 1: try { try decoder.decodeRepeatedStringField(value: &self.delegations) }()
+      default: break
+      }
+    }
+  }
+
+  public func traverse<V: SwiftProtobuf.Visitor>(visitor: inout V) throws {
+    if !self.delegations.isEmpty {
+      try visitor.visitRepeatedStringField(value: self.delegations, fieldNumber: 1)
+    }
+    try unknownFields.traverse(visitor: &visitor)
+  }
+
+  public static func ==(lhs: Ocap_DelegationFilter, rhs: Ocap_DelegationFilter) -> Bool {
+    if lhs.delegations != rhs.delegations {return false}
+    if lhs.unknownFields != rhs.unknownFields {return false}
+    return true
+  }
+}
+
 extension Ocap_TokenFilter: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
   public static let protoMessageName: String = _protobuf_package + ".TokenFilter"
   public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
@@ -3933,3 +4010,75 @@ extension Ocap_IndexedRollupValidator: SwiftProtobuf.Message, SwiftProtobuf._Mes
     return true
   }
 }
+
+extension Ocap_IndexedDelegationState: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
+  public static let protoMessageName: String = _protobuf_package + ".IndexedDelegationState"
+  public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
+    1: .same(proto: "address"),
+    2: .same(proto: "from"),
+    3: .same(proto: "to"),
+    4: .standard(proto: "genesis_time"),
+    5: .standard(proto: "renaissance_time"),
+    6: .same(proto: "ops"),
+    7: .same(proto: "data"),
+  ]
+
+  public mutating func decodeMessage<D: SwiftProtobuf.Decoder>(decoder: inout D) throws {
+    while let fieldNumber = try decoder.nextFieldNumber() {
+      // The use of inline closures is to circumvent an issue where the compiler
+      // allocates stack space for every case branch when no optimizations are
+      // enabled. https://github.com/apple/swift-protobuf/issues/1034
+      switch fieldNumber {
+      case 1: try { try decoder.decodeSingularStringField(value: &self.address) }()
+      case 2: try { try decoder.decodeSingularStringField(value: &self.from) }()
+      case 3: try { try decoder.decodeSingularStringField(value: &self.to) }()
+      case 4: try { try decoder.decodeSingularStringField(value: &self.genesisTime) }()
+      case 5: try { try decoder.decodeSingularStringField(value: &self.renaissanceTime) }()
+      case 6: try { try decoder.decodeMapField(fieldType: SwiftProtobuf._ProtobufMessageMap<SwiftProtobuf.ProtobufString,Ocap_DelegateOpState>.self, value: &self.ops) }()
+      case 7: try { try decoder.decodeSingularMessageField(value: &self._data) }()
+      default: break
+      }
+    }
+  }
+
+  public func traverse<V: SwiftProtobuf.Visitor>(visitor: inout V) throws {
+    // The use of inline closures is to circumvent an issue where the compiler
+    // allocates stack space for every if/case branch local when no optimizations
+    // are enabled. https://github.com/apple/swift-protobuf/issues/1034 and
+    // https://github.com/apple/swift-protobuf/issues/1182
+    if !self.address.isEmpty {
+      try visitor.visitSingularStringField(value: self.address, fieldNumber: 1)
+    }
+    if !self.from.isEmpty {
+      try visitor.visitSingularStringField(value: self.from, fieldNumber: 2)
+    }
+    if !self.to.isEmpty {
+      try visitor.visitSingularStringField(value: self.to, fieldNumber: 3)
+    }
+    if !self.genesisTime.isEmpty {
+      try visitor.visitSingularStringField(value: self.genesisTime, fieldNumber: 4)
+    }
+    if !self.renaissanceTime.isEmpty {
+      try visitor.visitSingularStringField(value: self.renaissanceTime, fieldNumber: 5)
+    }
+    if !self.ops.isEmpty {
+      try visitor.visitMapField(fieldType: SwiftProtobuf._ProtobufMessageMap<SwiftProtobuf.ProtobufString,Ocap_DelegateOpState>.self, value: self.ops, fieldNumber: 6)
+    }
+    try { if let v = self._data {
+      try visitor.visitSingularMessageField(value: v, fieldNumber: 7)
+    } }()
+    try unknownFields.traverse(visitor: &visitor)
+  }
+
+  public static func ==(lhs: Ocap_IndexedDelegationState, rhs: Ocap_IndexedDelegationState) -> Bool {
+    if lhs.address != rhs.address {return false}
+    if lhs.from != rhs.from {return false}
+    if lhs.to != rhs.to {return false}
+    if lhs.genesisTime != rhs.genesisTime {return false}
+    if lhs.renaissanceTime != rhs.renaissanceTime {return false}
+    if lhs.ops != rhs.ops {return false}
+    if lhs._data != rhs._data {return false}
+    if lhs.unknownFields != rhs.unknownFields {return false}
+    return true
+  }
+}
diff --git a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/trace-type.proto b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/trace-type.proto
index 30161b16..a68c7921 100644
--- a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/trace-type.proto
+++ b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/trace-type.proto
@@ -3,6 +3,7 @@ package ocap;
 
 import "google/protobuf/any.proto";
 import "type.proto";
+import "state.proto";
 import "enum.proto";
 import "tx.proto";
 
@@ -31,6 +32,10 @@ message FactoryFilter {
   repeated string factories = 1;
 }
 
+message DelegationFilter {
+  repeated string delegations = 1;
+}
+
 message TokenFilter {
   repeated string tokens = 1;
 }
@@ -348,3 +353,13 @@ message IndexedRollupValidator {
 
   string rollup = 17;
 }
+
+message IndexedDelegationState {
+  string address = 1;
+  string from = 2;
+  string to = 3;
+  string genesis_time = 4;
+  string renaissance_time = 5;
+  map<string, DelegateOpState> ops = 6;
+  google.protobuf.Any data = 7;
+}
diff --git a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/tx.pb.swift b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/tx.pb.swift
index a96b4c4b..7d0f7093 100644
--- a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/tx.pb.swift
+++ b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/tx.pb.swift
@@ -89,6 +89,33 @@ public struct Ocap_DeclareTx {
   fileprivate var _data: SwiftProtobuf.Google_Protobuf_Any? = nil
 }
 
+/// if rules are empty, signature for this type_url is entirely delegated
+public struct Ocap_DelegateOp {
+  // SwiftProtobuf.Message conformance is added in an extension below. See the
+  // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
+  // methods supported on all messages.
+
+  public var typeURL: String = String()
+
+  public var rules: [String] = []
+
+  /// since v1.18.96
+  public var limit: Ocap_DelegateLimit {
+    get {return _limit ?? Ocap_DelegateLimit()}
+    set {_limit = newValue}
+  }
+  /// Returns true if `limit` has been explicitly set.
+  public var hasLimit: Bool {return self._limit != nil}
+  /// Clears the value of `limit`. Subsequent reads from it will return its default value.
+  public mutating func clearLimit() {self._limit = nil}
+
+  public var unknownFields = SwiftProtobuf.UnknownStorage()
+
+  public init() {}
+
+  fileprivate var _limit: Ocap_DelegateLimit? = nil
+}
+
 public struct Ocap_DelegateTx {
   // SwiftProtobuf.Message conformance is added in an extension below. See the
   // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
@@ -119,24 +146,6 @@ public struct Ocap_DelegateTx {
   fileprivate var _data: SwiftProtobuf.Google_Protobuf_Any? = nil
 }
 
-/// if rules are empty, signature for this type_url is entirely delegated
-/// otherwise rules are checked one by one, relationship between rules is AND.
-/// a rule is an expression defined in rule_parser
-/// (github.com/arcblock/rule-parser) one can setup
-public struct Ocap_DelegateOp {
-  // SwiftProtobuf.Message conformance is added in an extension below. See the
-  // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
-  // methods supported on all messages.
-
-  public var typeURL: String = String()
-
-  public var rules: [String] = []
-
-  public var unknownFields = SwiftProtobuf.UnknownStorage()
-
-  public init() {}
-}
-
 public struct Ocap_RevokeDelegateTx {
   // SwiftProtobuf.Message conformance is added in an extension below. See the
   // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
@@ -747,6 +756,8 @@ public struct Ocap_UpdateAssetTx {
 
   public var moniker: String = String()
 
+  public var consumed: Bool = false
+
   /// ocap won't update data into state if app is interested in this tx.
   public var data: SwiftProtobuf.Google_Protobuf_Any {
     get {return _data ?? SwiftProtobuf.Google_Protobuf_Any()}
@@ -2342,13 +2353,12 @@ extension Ocap_DeclareTx: SwiftProtobuf.Message, SwiftProtobuf._MessageImplement
   }
 }
 
-extension Ocap_DelegateTx: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
-  public static let protoMessageName: String = _protobuf_package + ".DelegateTx"
+extension Ocap_DelegateOp: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
+  public static let protoMessageName: String = _protobuf_package + ".DelegateOp"
   public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
-    1: .same(proto: "address"),
-    2: .same(proto: "to"),
-    3: .same(proto: "ops"),
-    15: .same(proto: "data"),
+    1: .standard(proto: "type_url"),
+    2: .same(proto: "rules"),
+    3: .same(proto: "limit"),
   ]
 
   public mutating func decodeMessage<D: SwiftProtobuf.Decoder>(decoder: inout D) throws {
@@ -2357,10 +2367,9 @@ extension Ocap_DelegateTx: SwiftProtobuf.Message, SwiftProtobuf._MessageImplemen
       // allocates stack space for every case branch when no optimizations are
       // enabled. https://github.com/apple/swift-protobuf/issues/1034
       switch fieldNumber {
-      case 1: try { try decoder.decodeSingularStringField(value: &self.address) }()
-      case 2: try { try decoder.decodeSingularStringField(value: &self.to) }()
-      case 3: try { try decoder.decodeRepeatedMessageField(value: &self.ops) }()
-      case 15: try { try decoder.decodeSingularMessageField(value: &self._data) }()
+      case 1: try { try decoder.decodeSingularStringField(value: &self.typeURL) }()
+      case 2: try { try decoder.decodeRepeatedStringField(value: &self.rules) }()
+      case 3: try { try decoder.decodeSingularMessageField(value: &self._limit) }()
       default: break
       }
     }
@@ -2371,36 +2380,34 @@ extension Ocap_DelegateTx: SwiftProtobuf.Message, SwiftProtobuf._MessageImplemen
     // allocates stack space for every if/case branch local when no optimizations
     // are enabled. https://github.com/apple/swift-protobuf/issues/1034 and
     // https://github.com/apple/swift-protobuf/issues/1182
-    if !self.address.isEmpty {
-      try visitor.visitSingularStringField(value: self.address, fieldNumber: 1)
-    }
-    if !self.to.isEmpty {
-      try visitor.visitSingularStringField(value: self.to, fieldNumber: 2)
+    if !self.typeURL.isEmpty {
+      try visitor.visitSingularStringField(value: self.typeURL, fieldNumber: 1)
     }
-    if !self.ops.isEmpty {
-      try visitor.visitRepeatedMessageField(value: self.ops, fieldNumber: 3)
+    if !self.rules.isEmpty {
+      try visitor.visitRepeatedStringField(value: self.rules, fieldNumber: 2)
     }
-    try { if let v = self._data {
-      try visitor.visitSingularMessageField(value: v, fieldNumber: 15)
+    try { if let v = self._limit {
+      try visitor.visitSingularMessageField(value: v, fieldNumber: 3)
     } }()
     try unknownFields.traverse(visitor: &visitor)
   }
 
-  public static func ==(lhs: Ocap_DelegateTx, rhs: Ocap_DelegateTx) -> Bool {
-    if lhs.address != rhs.address {return false}
-    if lhs.to != rhs.to {return false}
-    if lhs.ops != rhs.ops {return false}
-    if lhs._data != rhs._data {return false}
+  public static func ==(lhs: Ocap_DelegateOp, rhs: Ocap_DelegateOp) -> Bool {
+    if lhs.typeURL != rhs.typeURL {return false}
+    if lhs.rules != rhs.rules {return false}
+    if lhs._limit != rhs._limit {return false}
     if lhs.unknownFields != rhs.unknownFields {return false}
     return true
   }
 }
 
-extension Ocap_DelegateOp: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
-  public static let protoMessageName: String = _protobuf_package + ".DelegateOp"
+extension Ocap_DelegateTx: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
+  public static let protoMessageName: String = _protobuf_package + ".DelegateTx"
   public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
-    1: .standard(proto: "type_url"),
-    2: .same(proto: "rules"),
+    1: .same(proto: "address"),
+    2: .same(proto: "to"),
+    3: .same(proto: "ops"),
+    15: .same(proto: "data"),
   ]
 
   public mutating func decodeMessage<D: SwiftProtobuf.Decoder>(decoder: inout D) throws {
@@ -2409,26 +2416,40 @@ extension Ocap_DelegateOp: SwiftProtobuf.Message, SwiftProtobuf._MessageImplemen
       // allocates stack space for every case branch when no optimizations are
       // enabled. https://github.com/apple/swift-protobuf/issues/1034
       switch fieldNumber {
-      case 1: try { try decoder.decodeSingularStringField(value: &self.typeURL) }()
-      case 2: try { try decoder.decodeRepeatedStringField(value: &self.rules) }()
+      case 1: try { try decoder.decodeSingularStringField(value: &self.address) }()
+      case 2: try { try decoder.decodeSingularStringField(value: &self.to) }()
+      case 3: try { try decoder.decodeRepeatedMessageField(value: &self.ops) }()
+      case 15: try { try decoder.decodeSingularMessageField(value: &self._data) }()
       default: break
       }
     }
   }
 
   public func traverse<V: SwiftProtobuf.Visitor>(visitor: inout V) throws {
-    if !self.typeURL.isEmpty {
-      try visitor.visitSingularStringField(value: self.typeURL, fieldNumber: 1)
+    // The use of inline closures is to circumvent an issue where the compiler
+    // allocates stack space for every if/case branch local when no optimizations
+    // are enabled. https://github.com/apple/swift-protobuf/issues/1034 and
+    // https://github.com/apple/swift-protobuf/issues/1182
+    if !self.address.isEmpty {
+      try visitor.visitSingularStringField(value: self.address, fieldNumber: 1)
     }
-    if !self.rules.isEmpty {
-      try visitor.visitRepeatedStringField(value: self.rules, fieldNumber: 2)
+    if !self.to.isEmpty {
+      try visitor.visitSingularStringField(value: self.to, fieldNumber: 2)
+    }
+    if !self.ops.isEmpty {
+      try visitor.visitRepeatedMessageField(value: self.ops, fieldNumber: 3)
     }
+    try { if let v = self._data {
+      try visitor.visitSingularMessageField(value: v, fieldNumber: 15)
+    } }()
     try unknownFields.traverse(visitor: &visitor)
   }
 
-  public static func ==(lhs: Ocap_DelegateOp, rhs: Ocap_DelegateOp) -> Bool {
-    if lhs.typeURL != rhs.typeURL {return false}
-    if lhs.rules != rhs.rules {return false}
+  public static func ==(lhs: Ocap_DelegateTx, rhs: Ocap_DelegateTx) -> Bool {
+    if lhs.address != rhs.address {return false}
+    if lhs.to != rhs.to {return false}
+    if lhs.ops != rhs.ops {return false}
+    if lhs._data != rhs._data {return false}
     if lhs.unknownFields != rhs.unknownFields {return false}
     return true
   }
@@ -3355,6 +3376,7 @@ extension Ocap_UpdateAssetTx: SwiftProtobuf.Message, SwiftProtobuf._MessageImple
   public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
     1: .same(proto: "address"),
     2: .same(proto: "moniker"),
+    3: .same(proto: "consumed"),
     15: .same(proto: "data"),
   ]
 
@@ -3366,6 +3388,7 @@ extension Ocap_UpdateAssetTx: SwiftProtobuf.Message, SwiftProtobuf._MessageImple
       switch fieldNumber {
       case 1: try { try decoder.decodeSingularStringField(value: &self.address) }()
       case 2: try { try decoder.decodeSingularStringField(value: &self.moniker) }()
+      case 3: try { try decoder.decodeSingularBoolField(value: &self.consumed) }()
       case 15: try { try decoder.decodeSingularMessageField(value: &self._data) }()
       default: break
       }
@@ -3383,6 +3406,9 @@ extension Ocap_UpdateAssetTx: SwiftProtobuf.Message, SwiftProtobuf._MessageImple
     if !self.moniker.isEmpty {
       try visitor.visitSingularStringField(value: self.moniker, fieldNumber: 2)
     }
+    if self.consumed != false {
+      try visitor.visitSingularBoolField(value: self.consumed, fieldNumber: 3)
+    }
     try { if let v = self._data {
       try visitor.visitSingularMessageField(value: v, fieldNumber: 15)
     } }()
@@ -3392,6 +3418,7 @@ extension Ocap_UpdateAssetTx: SwiftProtobuf.Message, SwiftProtobuf._MessageImple
   public static func ==(lhs: Ocap_UpdateAssetTx, rhs: Ocap_UpdateAssetTx) -> Bool {
     if lhs.address != rhs.address {return false}
     if lhs.moniker != rhs.moniker {return false}
+    if lhs.consumed != rhs.consumed {return false}
     if lhs._data != rhs._data {return false}
     if lhs.unknownFields != rhs.unknownFields {return false}
     return true
diff --git a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/tx.proto b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/tx.proto
index 0da8c3ac..82d3426a 100644
--- a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/tx.proto
+++ b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/tx.proto
@@ -24,6 +24,16 @@ message DeclareTx {
   // ocap won't update data into state if app is interested in this tx.
   google.protobuf.Any data = 15;
 }
+
+// if rules are empty, signature for this type_url is entirely delegated
+message DelegateOp {
+  string type_url = 1;
+
+  repeated string rules = 2 [ deprecated = true ];
+
+  // since v1.18.96
+  DelegateLimit limit = 3;
+}
 message DelegateTx {
   string address = 1; // address of the delegation between sender and receiver
   string to = 2;      // delegatee's address
@@ -31,15 +41,6 @@ message DelegateTx {
 
   google.protobuf.Any data = 15;
 }
-
-// if rules are empty, signature for this type_url is entirely delegated
-// otherwise rules are checked one by one, relationship between rules is AND.
-// a rule is an expression defined in rule_parser
-// (github.com/arcblock/rule-parser) one can setup
-message DelegateOp {
-  string type_url = 1;
-  repeated string rules = 2;
-}
 message RevokeDelegateTx {
   string address = 1; // address of the delegation between sender and receiver
   string to = 2;      // delegatee's address
@@ -255,6 +256,7 @@ message CreateAssetTx {
 message UpdateAssetTx {
   string address = 1;
   string moniker = 2;
+  bool consumed = 3;
 
   // ocap won't update data into state if app is interested in this tx.
   google.protobuf.Any data = 15;
diff --git a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/type.pb.swift b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/type.pb.swift
index 18059150..42efd3a9 100644
--- a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/type.pb.swift
+++ b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/type.pb.swift
@@ -1279,7 +1279,7 @@ public struct Ocap_Evidence {
   public init() {}
 }
 
-/// @link https://github.com/ArcBlock/asset-chain/issues/112#issuecomment-814487646
+/// @link https://github.com/ArcBlock/blockchain/issues/112#issuecomment-814487646
 public struct Ocap_NFTEndpoint {
   // SwiftProtobuf.Message conformance is added in an extension below. See the
   // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
@@ -1578,6 +1578,130 @@ public struct Ocap_GasEstimate {
   public init() {}
 }
 
+public struct Ocap_RateLimit {
+  // SwiftProtobuf.Message conformance is added in an extension below. See the
+  // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
+  // methods supported on all messages.
+
+  /// interval in seconds
+  public var interval: UInt64 = 0
+
+  /// when to start the rate limit, default to current timestamp, can be future or past
+  public var anchor: UInt64 = 0
+
+  public var unknownFields = SwiftProtobuf.UnknownStorage()
+
+  public init() {}
+}
+
+public struct Ocap_TokenLimit {
+  // SwiftProtobuf.Message conformance is added in an extension below. See the
+  // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
+  // methods supported on all messages.
+
+  /// which token allowed to transfer
+  public var address: String = String()
+
+  /// which address allowed to transfer to, empty is unlimited
+  public var to: [String] = []
+
+  /// how many txs allowed to send, 0 is unlimited
+  public var txCount: UInt32 = 0
+
+  /// how much token allowed to transfer, 0 is unlimited
+  public var txAllowance: String = String()
+
+  /// how much token allowed to transfer, accumulated, 0 is unlimited
+  public var totalAllowance: String = String()
+
+  /// in seconds, empty for unlimited
+  public var validUntil: UInt64 = 0
+
+  /// limit frequency, empty for unlimited
+  public var rate: Ocap_RateLimit {
+    get {return _rate ?? Ocap_RateLimit()}
+    set {_rate = newValue}
+  }
+  /// Returns true if `rate` has been explicitly set.
+  public var hasRate: Bool {return self._rate != nil}
+  /// Clears the value of `rate`. Subsequent reads from it will return its default value.
+  public mutating func clearRate() {self._rate = nil}
+
+  /// stats fields maintained by chain
+  public var txSent: UInt32 = 0
+
+  /// how much token allowed to transfer, 0 is unlimited
+  public var spentAllowance: String = String()
+
+  /// last tx time
+  public var lastTx: UInt64 = 0
+
+  /// fields used for display purpose
+  public var decimal: UInt32 = 0
+
+  public var symbol: String = String()
+
+  public var unknownFields = SwiftProtobuf.UnknownStorage()
+
+  public init() {}
+
+  fileprivate var _rate: Ocap_RateLimit? = nil
+}
+
+public struct Ocap_AssetLimit {
+  // SwiftProtobuf.Message conformance is added in an extension below. See the
+  // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
+  // methods supported on all messages.
+
+  /// which asset allowed to transfer, empty is unlimited
+  public var address: [String] = []
+
+  /// which address allowed to transfer to, empty is unlimited
+  public var to: [String] = []
+
+  /// how many txs allowed to send, 0 is unlimited
+  public var txCount: UInt32 = 0
+
+  /// in seconds, empty for unlimited
+  public var validUntil: UInt64 = 0
+
+  /// limit frequency, empty for unlimited
+  public var rate: Ocap_RateLimit {
+    get {return _rate ?? Ocap_RateLimit()}
+    set {_rate = newValue}
+  }
+  /// Returns true if `rate` has been explicitly set.
+  public var hasRate: Bool {return self._rate != nil}
+  /// Clears the value of `rate`. Subsequent reads from it will return its default value.
+  public mutating func clearRate() {self._rate = nil}
+
+  /// how much tx allowed to send, accumulated, 0 is unlimited
+  public var txSent: UInt32 = 0
+
+  /// last tx time
+  public var lastTx: UInt64 = 0
+
+  public var unknownFields = SwiftProtobuf.UnknownStorage()
+
+  public init() {}
+
+  fileprivate var _rate: Ocap_RateLimit? = nil
+}
+
+public struct Ocap_DelegateLimit {
+  // SwiftProtobuf.Message conformance is added in an extension below. See the
+  // `Message` and `Message+*Additions` files in the SwiftProtobuf library for
+  // methods supported on all messages.
+
+  public var tokens: [Ocap_TokenLimit] = []
+
+  public var assets: [Ocap_AssetLimit] = []
+
+  public var unknownFields = SwiftProtobuf.UnknownStorage()
+
+  public init() {}
+}
+
 // MARK: - Code below here is support for the SwiftProtobuf runtime.
 
 fileprivate let _protobuf_package = "ocap"
@@ -4839,3 +4963,253 @@ extension Ocap_GasEstimate: SwiftProtobuf.Message, SwiftProtobuf._MessageImpleme
     return true
   }
 }
+
+extension Ocap_RateLimit: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
+  public static let protoMessageName: String = _protobuf_package + ".RateLimit"
+  public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
+    1: .same(proto: "interval"),
+    3: .same(proto: "anchor"),
+  ]
+
+  public mutating func decodeMessage<D: SwiftProtobuf.Decoder>(decoder: inout D) throws {
+    while let fieldNumber = try decoder.nextFieldNumber() {
+      // The use of inline closures is to circumvent an issue where the compiler
+      // allocates stack space for every case branch when no optimizations are
+      // enabled. https://github.com/apple/swift-protobuf/issues/1034
+      switch fieldNumber {
+      case 1: try { try decoder.decodeSingularUInt64Field(value: &self.interval) }()
+      case 3: try { try decoder.decodeSingularUInt64Field(value: &self.anchor) }()
+      default: break
+      }
+    }
+  }
+
+  public func traverse<V: SwiftProtobuf.Visitor>(visitor: inout V) throws {
+    if self.interval != 0 {
+      try visitor.visitSingularUInt64Field(value: self.interval, fieldNumber: 1)
+    }
+    if self.anchor != 0 {
+      try visitor.visitSingularUInt64Field(value: self.anchor, fieldNumber: 3)
+    }
+    try unknownFields.traverse(visitor: &visitor)
+  }
+
+  public static func ==(lhs: Ocap_RateLimit, rhs: Ocap_RateLimit) -> Bool {
+    if lhs.interval != rhs.interval {return false}
+    if lhs.anchor != rhs.anchor {return false}
+    if lhs.unknownFields != rhs.unknownFields {return false}
+    return true
+  }
+}
+
+extension Ocap_TokenLimit: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
+  public static let protoMessageName: String = _protobuf_package + ".TokenLimit"
+  public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
+    1: .same(proto: "address"),
+    2: .same(proto: "to"),
+    3: .standard(proto: "tx_count"),
+    4: .standard(proto: "tx_allowance"),
+    5: .standard(proto: "total_allowance"),
+    6: .standard(proto: "valid_until"),
+    7: .same(proto: "rate"),
+    8: .standard(proto: "tx_sent"),
+    9: .standard(proto: "spent_allowance"),
+    10: .standard(proto: "last_tx"),
+    11: .same(proto: "decimal"),
+    12: .same(proto: "symbol"),
+  ]
+
+  public mutating func decodeMessage<D: SwiftProtobuf.Decoder>(decoder: inout D) throws {
+    while let fieldNumber = try decoder.nextFieldNumber() {
+      // The use of inline closures is to circumvent an issue where the compiler
+      // allocates stack space for every case branch when no optimizations are
+      // enabled. https://github.com/apple/swift-protobuf/issues/1034
+      switch fieldNumber {
+      case 1: try { try decoder.decodeSingularStringField(value: &self.address) }()
+      case 2: try { try decoder.decodeRepeatedStringField(value: &self.to) }()
+      case 3: try { try decoder.decodeSingularUInt32Field(value: &self.txCount) }()
+      case 4: try { try decoder.decodeSingularStringField(value: &self.txAllowance) }()
+      case 5: try { try decoder.decodeSingularStringField(value: &self.totalAllowance) }()
+      case 6: try { try decoder.decodeSingularUInt64Field(value: &self.validUntil) }()
+      case 7: try { try decoder.decodeSingularMessageField(value: &self._rate) }()
+      case 8: try { try decoder.decodeSingularUInt32Field(value: &self.txSent) }()
+      case 9: try { try decoder.decodeSingularStringField(value: &self.spentAllowance) }()
+      case 10: try { try decoder.decodeSingularUInt64Field(value: &self.lastTx) }()
+      case 11: try { try decoder.decodeSingularUInt32Field(value: &self.decimal) }()
+      case 12: try { try decoder.decodeSingularStringField(value: &self.symbol) }()
+      default: break
+      }
+    }
+  }
+
+  public func traverse<V: SwiftProtobuf.Visitor>(visitor: inout V) throws {
+    // The use of inline closures is to circumvent an issue where the compiler
+    // allocates stack space for every if/case branch local when no optimizations
+    // are enabled. https://github.com/apple/swift-protobuf/issues/1034 and
+    // https://github.com/apple/swift-protobuf/issues/1182
+    if !self.address.isEmpty {
+      try visitor.visitSingularStringField(value: self.address, fieldNumber: 1)
+    }
+    if !self.to.isEmpty {
+      try visitor.visitRepeatedStringField(value: self.to, fieldNumber: 2)
+    }
+    if self.txCount != 0 {
+      try visitor.visitSingularUInt32Field(value: self.txCount, fieldNumber: 3)
+    }
+    if !self.txAllowance.isEmpty {
+      try visitor.visitSingularStringField(value: self.txAllowance, fieldNumber: 4)
+    }
+    if !self.totalAllowance.isEmpty {
+      try visitor.visitSingularStringField(value: self.totalAllowance, fieldNumber: 5)
+    }
+    if self.validUntil != 0 {
+      try visitor.visitSingularUInt64Field(value: self.validUntil, fieldNumber: 6)
+    }
+    try { if let v = self._rate {
+      try visitor.visitSingularMessageField(value: v, fieldNumber: 7)
+    } }()
+    if self.txSent != 0 {
+      try visitor.visitSingularUInt32Field(value: self.txSent, fieldNumber: 8)
+    }
+    if !self.spentAllowance.isEmpty {
+      try visitor.visitSingularStringField(value: self.spentAllowance, fieldNumber: 9)
+    }
+    if self.lastTx != 0 {
+      try visitor.visitSingularUInt64Field(value: self.lastTx, fieldNumber: 10)
+    }
+    if self.decimal != 0 {
+      try visitor.visitSingularUInt32Field(value: self.decimal, fieldNumber: 11)
+    }
+    if !self.symbol.isEmpty {
+      try visitor.visitSingularStringField(value: self.symbol, fieldNumber: 12)
+    }
+    try unknownFields.traverse(visitor: &visitor)
+  }
+
+  public static func ==(lhs: Ocap_TokenLimit, rhs: Ocap_TokenLimit) -> Bool {
+    if lhs.address != rhs.address {return false}
+    if lhs.to != rhs.to {return false}
+    if lhs.txCount != rhs.txCount {return false}
+    if lhs.txAllowance != rhs.txAllowance {return false}
+    if lhs.totalAllowance != rhs.totalAllowance {return false}
+    if lhs.validUntil != rhs.validUntil {return false}
+    if lhs._rate != rhs._rate {return false}
+    if lhs.txSent != rhs.txSent {return false}
+    if lhs.spentAllowance != rhs.spentAllowance {return false}
+    if lhs.lastTx != rhs.lastTx {return false}
+    if lhs.decimal != rhs.decimal {return false}
+    if lhs.symbol != rhs.symbol {return false}
+    if lhs.unknownFields != rhs.unknownFields {return false}
+    return true
+  }
+}
+
+extension Ocap_AssetLimit: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
+  public static let protoMessageName: String = _protobuf_package + ".AssetLimit"
+  public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
+    1: .same(proto: "address"),
+    2: .same(proto: "to"),
+    3: .standard(proto: "tx_count"),
+    4: .standard(proto: "valid_until"),
+    5: .same(proto: "rate"),
+    6: .standard(proto: "tx_sent"),
+    7: .standard(proto: "last_tx"),
+  ]
+
+  public mutating func decodeMessage<D: SwiftProtobuf.Decoder>(decoder: inout D) throws {
+    while let fieldNumber = try decoder.nextFieldNumber() {
+      // The use of inline closures is to circumvent an issue where the compiler
+      // allocates stack space for every case branch when no optimizations are
+      // enabled. https://github.com/apple/swift-protobuf/issues/1034
+      switch fieldNumber {
+      case 1: try { try decoder.decodeRepeatedStringField(value: &self.address) }()
+      case 2: try { try decoder.decodeRepeatedStringField(value: &self.to) }()
+      case 3: try { try decoder.decodeSingularUInt32Field(value: &self.txCount) }()
+      case 4: try { try decoder.decodeSingularUInt64Field(value: &self.validUntil) }()
+      case 5: try { try decoder.decodeSingularMessageField(value: &self._rate) }()
+      case 6: try { try decoder.decodeSingularUInt32Field(value: &self.txSent) }()
+      case 7: try { try decoder.decodeSingularUInt64Field(value: &self.lastTx) }()
+      default: break
+      }
+    }
+  }
+
+  public func traverse<V: SwiftProtobuf.Visitor>(visitor: inout V) throws {
+    // The use of inline closures is to circumvent an issue where the compiler
+    // allocates stack space for every if/case branch local when no optimizations
+    // are enabled. https://github.com/apple/swift-protobuf/issues/1034 and
+    // https://github.com/apple/swift-protobuf/issues/1182
+    if !self.address.isEmpty {
+      try visitor.visitRepeatedStringField(value: self.address, fieldNumber: 1)
+    }
+    if !self.to.isEmpty {
+      try visitor.visitRepeatedStringField(value: self.to, fieldNumber: 2)
+    }
+    if self.txCount != 0 {
+      try visitor.visitSingularUInt32Field(value: self.txCount, fieldNumber: 3)
+    }
+    if self.validUntil != 0 {
+      try visitor.visitSingularUInt64Field(value: self.validUntil, fieldNumber: 4)
+    }
+    try { if let v = self._rate {
+      try visitor.visitSingularMessageField(value: v, fieldNumber: 5)
+    } }()
+    if self.txSent != 0 {
+      try visitor.visitSingularUInt32Field(value: self.txSent, fieldNumber: 6)
+    }
+    if self.lastTx != 0 {
+      try visitor.visitSingularUInt64Field(value: self.lastTx, fieldNumber: 7)
+    }
+    try unknownFields.traverse(visitor: &visitor)
+  }
+
+  public static func ==(lhs: Ocap_AssetLimit, rhs: Ocap_AssetLimit) -> Bool {
+    if lhs.address != rhs.address {return false}
+    if lhs.to != rhs.to {return false}
+    if lhs.txCount != rhs.txCount {return false}
+    if lhs.validUntil != rhs.validUntil {return false}
+    if lhs._rate != rhs._rate {return false}
+    if lhs.txSent != rhs.txSent {return false}
+    if lhs.lastTx != rhs.lastTx {return false}
+    if lhs.unknownFields != rhs.unknownFields {return false}
+    return true
+  }
+}
+
+extension Ocap_DelegateLimit: SwiftProtobuf.Message, SwiftProtobuf._MessageImplementationBase, SwiftProtobuf._ProtoNameProviding {
+  public static let protoMessageName: String = _protobuf_package + ".DelegateLimit"
+  public static let _protobuf_nameMap: SwiftProtobuf._NameMap = [
+    1: .same(proto: "tokens"),
+    2: .same(proto: "assets"),
+  ]
+
+  public mutating func decodeMessage<D: SwiftProtobuf.Decoder>(decoder: inout D) throws {
+    while let fieldNumber = try decoder.nextFieldNumber() {
+      // The use of inline closures is to circumvent an issue where the compiler
+      // allocates stack space for every case branch when no optimizations are
+      // enabled. https://github.com/apple/swift-protobuf/issues/1034
+      switch fieldNumber {
+      case 1: try { try decoder.decodeRepeatedMessageField(value: &self.tokens) }()
+      case 2: try { try decoder.decodeRepeatedMessageField(value: &self.assets) }()
+      default: break
+      }
+    }
+  }
+
+  public func traverse<V: SwiftProtobuf.Visitor>(visitor: inout V) throws {
+    if !self.tokens.isEmpty {
+      try visitor.visitRepeatedMessageField(value: self.tokens, fieldNumber: 1)
+    }
+    if !self.assets.isEmpty {
+      try visitor.visitRepeatedMessageField(value: self.assets, fieldNumber: 2)
+    }
+    try unknownFields.traverse(visitor: &visitor)
+  }
+
+  public static func ==(lhs: Ocap_DelegateLimit, rhs: Ocap_DelegateLimit) -> Bool {
+    if lhs.tokens != rhs.tokens {return false}
+    if lhs.assets != rhs.assets {return false}
+    if lhs.unknownFields != rhs.unknownFields {return false}
+    return true
+  }
+}
diff --git a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/type.proto b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/type.proto
index bdfa4751..2c78c539 100644
--- a/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/type.proto
+++ b/ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/type.proto
@@ -366,7 +366,7 @@ message Evidence {
   string hash = 1;       // tx hash from a foreign chain
 }
 
-// @link https://github.com/ArcBlock/asset-chain/issues/112#issuecomment-814487646
+// @link https://github.com/ArcBlock/blockchain/issues/112#issuecomment-814487646
 message NFTEndpoint {
   // the url of the endpoint, must be a permanent url
   string id = 1;
@@ -462,3 +462,40 @@ message ForgeStats {
 message GasEstimate {
   string max = 1; // max gas for this tx
 }
+
+message RateLimit {
+  uint64 interval = 1; // interval in seconds
+  uint64 anchor = 3; // when to start the rate limit, default to current timestamp, can be future or past
+}
+message TokenLimit {
+  string address = 1; // which token allowed to transfer
+  repeated string to = 2; // which address allowed to transfer to, empty is unlimited
+  uint32 tx_count = 3; // how many txs allowed to send, 0 is unlimited
+  string tx_allowance = 4; // how much token allowed to transfer, 0 is unlimited
+  string total_allowance = 5; // how much token allowed to transfer, accumulated, 0 is unlimited
+  uint64 valid_until = 6; // in seconds, empty for unlimited
+  RateLimit rate = 7; // limit frequency, empty for unlimited
+
+  // stats fields maintained by chain
+  uint32 tx_sent = 8; // how much tx allowed to send, accumulated, 0 is unlimited
+  string spent_allowance = 9; // how much token allowed to transfer, 0 is unlimited
+  uint64 last_tx = 10; // last tx time
+
+  // fields used for display purpose
+  uint32 decimal = 11;
+  string symbol = 12;
+}
+message AssetLimit {
+  repeated string address = 1; // which asset allowed to transfer, empty is unlimited
+  repeated string to = 2; // which address allowed to transfer to, empty is unlimited
+  uint32 tx_count = 3; // how many txs allowed to send, 0 is unlimited
+  uint64 valid_until = 4; // in seconds, empty for unlimited
+  RateLimit rate = 5; // limit frequency, empty for unlimited
+
+  uint32 tx_sent = 6; // how much tx allowed to send, accumulated, 0 is unlimited
+  uint64 last_tx = 7; // last tx time
+}
+message DelegateLimit {
+  repeated TokenLimit tokens = 1;
+  repeated AssetLimit assets = 2;
+}
diff --git a/Makefile b/Makefile
index 683cf0f3..a965d0a7 100644
--- a/Makefile
+++ b/Makefile
@@ -56,7 +56,7 @@ travis-deploy:
 
 protobuf-codegen:
 	@echo "Generating protobuf swift codes..."
-	@protoc --swift_out=ArcBlockSDK/ABSDKWalletKit/protobuf/ --proto_path=ArcBlockSDK/ABSDKWalletKit/protobuf ArcBlockSDK/ABSDKWalletKit/protobuf/*.proto --swift_opt=Visibility=Public
+	@protoc --swift_out=ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/ --proto_path=ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf ArcBlockSDK/ABSDKCoreKit/ABSDKWalletKit/protobuf/*.proto --swift_opt=Visibility=Public
 
 clean:
 	@echo "Cleaning the build..."
diff --git a/Podfile b/Podfile
index c43e0a2c..ef401f48 100644
--- a/Podfile
+++ b/Podfile
@@ -18,3 +18,13 @@ target 'ArcBlockSDKTests' do
     pod 'SwiftProtobuf', '~> 1.0'
     pod 'web3swift', :git => 'https://github.com/ArcBlock/web3swift.git'
 end
+
+post_install do |installer|
+    installer.generated_projects.each do |project|
+        project.targets.each do |target|
+            target.build_configurations.each do |config|
+                config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '13.0'
+            end
+        end
+    end
+end
diff --git a/Podfile.lock b/Podfile.lock
index c764f92b..02f74403 100644
--- a/Podfile.lock
+++ b/Podfile.lock
@@ -71,6 +71,6 @@ SPEC CHECKSUMS:
   SwiftProtobuf: 9c85136c6ba74b0a1b84279dbf0f6db8efb714e0
   web3swift: 0e004984752645a0ed24736dcd5817a213f489bc
 
-PODFILE CHECKSUM: 2653e2d1665cd8bb24092b4926c12a97706ac7e6
+PODFILE CHECKSUM: 37d3f6f230f0b3b0b0ce5085178af95ec7eededf
 
-COCOAPODS: 1.11.2
+COCOAPODS: 1.12.0