diff --git a/abci/types/types.pb.go b/abci/types/types.pb.go
index 8745553e0..79e160065 100644
--- a/abci/types/types.pb.go
+++ b/abci/types/types.pb.go
@@ -60,7 +60,7 @@ func (m *Request) Reset()         { *m = Request{} }
 func (m *Request) String() string { return proto.CompactTextString(m) }
 func (*Request) ProtoMessage()    {}
 func (*Request) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{0}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{0}
 }
 func (m *Request) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -482,7 +482,7 @@ func (m *RequestEcho) Reset()         { *m = RequestEcho{} }
 func (m *RequestEcho) String() string { return proto.CompactTextString(m) }
 func (*RequestEcho) ProtoMessage()    {}
 func (*RequestEcho) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{1}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{1}
 }
 func (m *RequestEcho) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -528,7 +528,7 @@ func (m *RequestFlush) Reset()         { *m = RequestFlush{} }
 func (m *RequestFlush) String() string { return proto.CompactTextString(m) }
 func (*RequestFlush) ProtoMessage()    {}
 func (*RequestFlush) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{2}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{2}
 }
 func (m *RequestFlush) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -568,7 +568,7 @@ func (m *RequestInfo) Reset()         { *m = RequestInfo{} }
 func (m *RequestInfo) String() string { return proto.CompactTextString(m) }
 func (*RequestInfo) ProtoMessage()    {}
 func (*RequestInfo) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{3}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{3}
 }
 func (m *RequestInfo) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -617,7 +617,7 @@ func (m *RequestSetOption) Reset()         { *m = RequestSetOption{} }
 func (m *RequestSetOption) String() string { return proto.CompactTextString(m) }
 func (*RequestSetOption) ProtoMessage()    {}
 func (*RequestSetOption) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{4}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{4}
 }
 func (m *RequestSetOption) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -675,7 +675,7 @@ func (m *RequestInitChain) Reset()         { *m = RequestInitChain{} }
 func (m *RequestInitChain) String() string { return proto.CompactTextString(m) }
 func (*RequestInitChain) ProtoMessage()    {}
 func (*RequestInitChain) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{5}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{5}
 }
 func (m *RequestInitChain) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -753,7 +753,7 @@ func (m *RequestQuery) Reset()         { *m = RequestQuery{} }
 func (m *RequestQuery) String() string { return proto.CompactTextString(m) }
 func (*RequestQuery) ProtoMessage()    {}
 func (*RequestQuery) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{6}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{6}
 }
 func (m *RequestQuery) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -825,7 +825,7 @@ func (m *RequestBeginBlock) Reset()         { *m = RequestBeginBlock{} }
 func (m *RequestBeginBlock) String() string { return proto.CompactTextString(m) }
 func (*RequestBeginBlock) ProtoMessage()    {}
 func (*RequestBeginBlock) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{7}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{7}
 }
 func (m *RequestBeginBlock) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -893,7 +893,7 @@ func (m *RequestCheckTx) Reset()         { *m = RequestCheckTx{} }
 func (m *RequestCheckTx) String() string { return proto.CompactTextString(m) }
 func (*RequestCheckTx) ProtoMessage()    {}
 func (*RequestCheckTx) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{8}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{8}
 }
 func (m *RequestCheckTx) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -940,7 +940,7 @@ func (m *RequestDeliverTx) Reset()         { *m = RequestDeliverTx{} }
 func (m *RequestDeliverTx) String() string { return proto.CompactTextString(m) }
 func (*RequestDeliverTx) ProtoMessage()    {}
 func (*RequestDeliverTx) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{9}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{9}
 }
 func (m *RequestDeliverTx) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -987,7 +987,7 @@ func (m *RequestEndBlock) Reset()         { *m = RequestEndBlock{} }
 func (m *RequestEndBlock) String() string { return proto.CompactTextString(m) }
 func (*RequestEndBlock) ProtoMessage()    {}
 func (*RequestEndBlock) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{10}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{10}
 }
 func (m *RequestEndBlock) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1033,7 +1033,7 @@ func (m *RequestCommit) Reset()         { *m = RequestCommit{} }
 func (m *RequestCommit) String() string { return proto.CompactTextString(m) }
 func (*RequestCommit) ProtoMessage()    {}
 func (*RequestCommit) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{11}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{11}
 }
 func (m *RequestCommit) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1086,7 +1086,7 @@ func (m *Response) Reset()         { *m = Response{} }
 func (m *Response) String() string { return proto.CompactTextString(m) }
 func (*Response) ProtoMessage()    {}
 func (*Response) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{12}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{12}
 }
 func (m *Response) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1539,7 +1539,7 @@ func (m *ResponseException) Reset()         { *m = ResponseException{} }
 func (m *ResponseException) String() string { return proto.CompactTextString(m) }
 func (*ResponseException) ProtoMessage()    {}
 func (*ResponseException) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{13}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{13}
 }
 func (m *ResponseException) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1586,7 +1586,7 @@ func (m *ResponseEcho) Reset()         { *m = ResponseEcho{} }
 func (m *ResponseEcho) String() string { return proto.CompactTextString(m) }
 func (*ResponseEcho) ProtoMessage()    {}
 func (*ResponseEcho) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{14}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{14}
 }
 func (m *ResponseEcho) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1632,7 +1632,7 @@ func (m *ResponseFlush) Reset()         { *m = ResponseFlush{} }
 func (m *ResponseFlush) String() string { return proto.CompactTextString(m) }
 func (*ResponseFlush) ProtoMessage()    {}
 func (*ResponseFlush) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{15}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{15}
 }
 func (m *ResponseFlush) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1675,7 +1675,7 @@ func (m *ResponseInfo) Reset()         { *m = ResponseInfo{} }
 func (m *ResponseInfo) String() string { return proto.CompactTextString(m) }
 func (*ResponseInfo) ProtoMessage()    {}
 func (*ResponseInfo) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{16}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{16}
 }
 func (m *ResponseInfo) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1747,7 +1747,7 @@ func (m *ResponseSetOption) Reset()         { *m = ResponseSetOption{} }
 func (m *ResponseSetOption) String() string { return proto.CompactTextString(m) }
 func (*ResponseSetOption) ProtoMessage()    {}
 func (*ResponseSetOption) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{17}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{17}
 }
 func (m *ResponseSetOption) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1809,7 +1809,7 @@ func (m *ResponseInitChain) Reset()         { *m = ResponseInitChain{} }
 func (m *ResponseInitChain) String() string { return proto.CompactTextString(m) }
 func (*ResponseInitChain) ProtoMessage()    {}
 func (*ResponseInitChain) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{18}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{18}
 }
 func (m *ResponseInitChain) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1871,7 +1871,7 @@ func (m *ResponseQuery) Reset()         { *m = ResponseQuery{} }
 func (m *ResponseQuery) String() string { return proto.CompactTextString(m) }
 func (*ResponseQuery) ProtoMessage()    {}
 func (*ResponseQuery) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{19}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{19}
 }
 func (m *ResponseQuery) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1967,7 +1967,7 @@ func (m *ResponseBeginBlock) Reset()         { *m = ResponseBeginBlock{} }
 func (m *ResponseBeginBlock) String() string { return proto.CompactTextString(m) }
 func (*ResponseBeginBlock) ProtoMessage()    {}
 func (*ResponseBeginBlock) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{20}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{20}
 }
 func (m *ResponseBeginBlock) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2020,7 +2020,7 @@ func (m *ResponseCheckTx) Reset()         { *m = ResponseCheckTx{} }
 func (m *ResponseCheckTx) String() string { return proto.CompactTextString(m) }
 func (*ResponseCheckTx) ProtoMessage()    {}
 func (*ResponseCheckTx) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{21}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{21}
 }
 func (m *ResponseCheckTx) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2115,7 +2115,7 @@ func (m *ResponseDeliverTx) Reset()         { *m = ResponseDeliverTx{} }
 func (m *ResponseDeliverTx) String() string { return proto.CompactTextString(m) }
 func (*ResponseDeliverTx) ProtoMessage()    {}
 func (*ResponseDeliverTx) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{22}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{22}
 }
 func (m *ResponseDeliverTx) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2206,7 +2206,7 @@ func (m *ResponseEndBlock) Reset()         { *m = ResponseEndBlock{} }
 func (m *ResponseEndBlock) String() string { return proto.CompactTextString(m) }
 func (*ResponseEndBlock) ProtoMessage()    {}
 func (*ResponseEndBlock) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{23}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{23}
 }
 func (m *ResponseEndBlock) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2268,7 +2268,7 @@ func (m *ResponseCommit) Reset()         { *m = ResponseCommit{} }
 func (m *ResponseCommit) String() string { return proto.CompactTextString(m) }
 func (*ResponseCommit) ProtoMessage()    {}
 func (*ResponseCommit) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{24}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{24}
 }
 func (m *ResponseCommit) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2319,7 +2319,7 @@ func (m *ConsensusParams) Reset()         { *m = ConsensusParams{} }
 func (m *ConsensusParams) String() string { return proto.CompactTextString(m) }
 func (*ConsensusParams) ProtoMessage()    {}
 func (*ConsensusParams) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{25}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{25}
 }
 func (m *ConsensusParams) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2383,7 +2383,7 @@ func (m *BlockSize) Reset()         { *m = BlockSize{} }
 func (m *BlockSize) String() string { return proto.CompactTextString(m) }
 func (*BlockSize) ProtoMessage()    {}
 func (*BlockSize) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{26}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{26}
 }
 func (m *BlockSize) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2446,7 +2446,7 @@ func (m *TxSize) Reset()         { *m = TxSize{} }
 func (m *TxSize) String() string { return proto.CompactTextString(m) }
 func (*TxSize) ProtoMessage()    {}
 func (*TxSize) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{27}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{27}
 }
 func (m *TxSize) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2503,7 +2503,7 @@ func (m *BlockGossip) Reset()         { *m = BlockGossip{} }
 func (m *BlockGossip) String() string { return proto.CompactTextString(m) }
 func (*BlockGossip) ProtoMessage()    {}
 func (*BlockGossip) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{28}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{28}
 }
 func (m *BlockGossip) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2540,7 +2540,8 @@ func (m *BlockGossip) GetBlockPartSizeBytes() int32 {
 }
 
 type LastCommitInfo struct {
-	CommitVotes          []VoteInfo `protobuf:"bytes,1,rep,name=commit_votes,json=commitVotes" json:"commit_votes"`
+	Round                int32      `protobuf:"varint,1,opt,name=round,proto3" json:"round,omitempty"`
+	Votes                []VoteInfo `protobuf:"bytes,2,rep,name=votes" json:"votes"`
 	XXX_NoUnkeyedLiteral struct{}   `json:"-"`
 	XXX_unrecognized     []byte     `json:"-"`
 	XXX_sizecache        int32      `json:"-"`
@@ -2550,7 +2551,7 @@ func (m *LastCommitInfo) Reset()         { *m = LastCommitInfo{} }
 func (m *LastCommitInfo) String() string { return proto.CompactTextString(m) }
 func (*LastCommitInfo) ProtoMessage()    {}
 func (*LastCommitInfo) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{29}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{29}
 }
 func (m *LastCommitInfo) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2579,9 +2580,16 @@ func (m *LastCommitInfo) XXX_DiscardUnknown() {
 
 var xxx_messageInfo_LastCommitInfo proto.InternalMessageInfo
 
-func (m *LastCommitInfo) GetCommitVotes() []VoteInfo {
+func (m *LastCommitInfo) GetRound() int32 {
 	if m != nil {
-		return m.CommitVotes
+		return m.Round
+	}
+	return 0
+}
+
+func (m *LastCommitInfo) GetVotes() []VoteInfo {
+	if m != nil {
+		return m.Votes
 	}
 	return nil
 }
@@ -2616,7 +2624,7 @@ func (m *Header) Reset()         { *m = Header{} }
 func (m *Header) String() string { return proto.CompactTextString(m) }
 func (*Header) ProtoMessage()    {}
 func (*Header) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{30}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{30}
 }
 func (m *Header) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2762,7 +2770,7 @@ func (m *BlockID) Reset()         { *m = BlockID{} }
 func (m *BlockID) String() string { return proto.CompactTextString(m) }
 func (*BlockID) ProtoMessage()    {}
 func (*BlockID) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{31}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{31}
 }
 func (m *BlockID) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2817,7 +2825,7 @@ func (m *PartSetHeader) Reset()         { *m = PartSetHeader{} }
 func (m *PartSetHeader) String() string { return proto.CompactTextString(m) }
 func (*PartSetHeader) ProtoMessage()    {}
 func (*PartSetHeader) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{32}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{32}
 }
 func (m *PartSetHeader) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2862,7 +2870,8 @@ func (m *PartSetHeader) GetHash() []byte {
 
 // Validator
 type Validator struct {
-	Address              []byte   `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
+	Address []byte `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
+	// PubKey pub_key = 2 [(gogoproto.nullable)=false];
 	Power                int64    `protobuf:"varint,3,opt,name=power,proto3" json:"power,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`
@@ -2873,7 +2882,7 @@ func (m *Validator) Reset()         { *m = Validator{} }
 func (m *Validator) String() string { return proto.CompactTextString(m) }
 func (*Validator) ProtoMessage()    {}
 func (*Validator) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{33}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{33}
 }
 func (m *Validator) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2929,7 +2938,7 @@ func (m *ValidatorUpdate) Reset()         { *m = ValidatorUpdate{} }
 func (m *ValidatorUpdate) String() string { return proto.CompactTextString(m) }
 func (*ValidatorUpdate) ProtoMessage()    {}
 func (*ValidatorUpdate) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{34}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{34}
 }
 func (m *ValidatorUpdate) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2976,7 +2985,6 @@ func (m *ValidatorUpdate) GetPower() int64 {
 type VoteInfo struct {
 	Validator            Validator `protobuf:"bytes,1,opt,name=validator" json:"validator"`
 	SignedLastBlock      bool      `protobuf:"varint,2,opt,name=signed_last_block,json=signedLastBlock,proto3" json:"signed_last_block,omitempty"`
-	CommitRound          int64     `protobuf:"varint,3,opt,name=commit_round,json=commitRound,proto3" json:"commit_round,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}  `json:"-"`
 	XXX_unrecognized     []byte    `json:"-"`
 	XXX_sizecache        int32     `json:"-"`
@@ -2986,7 +2994,7 @@ func (m *VoteInfo) Reset()         { *m = VoteInfo{} }
 func (m *VoteInfo) String() string { return proto.CompactTextString(m) }
 func (*VoteInfo) ProtoMessage()    {}
 func (*VoteInfo) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{35}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{35}
 }
 func (m *VoteInfo) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3029,13 +3037,6 @@ func (m *VoteInfo) GetSignedLastBlock() bool {
 	return false
 }
 
-func (m *VoteInfo) GetCommitRound() int64 {
-	if m != nil {
-		return m.CommitRound
-	}
-	return 0
-}
-
 type PubKey struct {
 	Type                 string   `protobuf:"bytes,1,opt,name=type,proto3" json:"type,omitempty"`
 	Data                 []byte   `protobuf:"bytes,2,opt,name=data,proto3" json:"data,omitempty"`
@@ -3048,7 +3049,7 @@ func (m *PubKey) Reset()         { *m = PubKey{} }
 func (m *PubKey) String() string { return proto.CompactTextString(m) }
 func (*PubKey) ProtoMessage()    {}
 func (*PubKey) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{36}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{36}
 }
 func (m *PubKey) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3106,7 +3107,7 @@ func (m *Evidence) Reset()         { *m = Evidence{} }
 func (m *Evidence) String() string { return proto.CompactTextString(m) }
 func (*Evidence) ProtoMessage()    {}
 func (*Evidence) Descriptor() ([]byte, []int) {
-	return fileDescriptor_types_56d74249e896ebc1, []int{37}
+	return fileDescriptor_types_bafb6deff4c77e13, []int{37}
 }
 func (m *Evidence) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4774,11 +4775,14 @@ func (this *LastCommitInfo) Equal(that interface{}) bool {
 	} else if this == nil {
 		return false
 	}
-	if len(this.CommitVotes) != len(that1.CommitVotes) {
+	if this.Round != that1.Round {
+		return false
+	}
+	if len(this.Votes) != len(that1.Votes) {
 		return false
 	}
-	for i := range this.CommitVotes {
-		if !this.CommitVotes[i].Equal(&that1.CommitVotes[i]) {
+	for i := range this.Votes {
+		if !this.Votes[i].Equal(&that1.Votes[i]) {
 			return false
 		}
 	}
@@ -5001,9 +5005,6 @@ func (this *VoteInfo) Equal(that interface{}) bool {
 	if this.SignedLastBlock != that1.SignedLastBlock {
 		return false
 	}
-	if this.CommitRound != that1.CommitRound {
-		return false
-	}
 	if !bytes.Equal(this.XXX_unrecognized, that1.XXX_unrecognized) {
 		return false
 	}
@@ -6908,9 +6909,14 @@ func (m *LastCommitInfo) MarshalTo(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
-	if len(m.CommitVotes) > 0 {
-		for _, msg := range m.CommitVotes {
-			dAtA[i] = 0xa
+	if m.Round != 0 {
+		dAtA[i] = 0x8
+		i++
+		i = encodeVarintTypes(dAtA, i, uint64(m.Round))
+	}
+	if len(m.Votes) > 0 {
+		for _, msg := range m.Votes {
+			dAtA[i] = 0x12
 			i++
 			i = encodeVarintTypes(dAtA, i, uint64(msg.Size()))
 			n, err := msg.MarshalTo(dAtA[i:])
@@ -7204,11 +7210,6 @@ func (m *VoteInfo) MarshalTo(dAtA []byte) (int, error) {
 		}
 		i++
 	}
-	if m.CommitRound != 0 {
-		dAtA[i] = 0x18
-		i++
-		i = encodeVarintTypes(dAtA, i, uint64(m.CommitRound))
-	}
 	if m.XXX_unrecognized != nil {
 		i += copy(dAtA[i:], m.XXX_unrecognized)
 	}
@@ -7942,16 +7943,20 @@ func NewPopulatedBlockGossip(r randyTypes, easy bool) *BlockGossip {
 
 func NewPopulatedLastCommitInfo(r randyTypes, easy bool) *LastCommitInfo {
 	this := &LastCommitInfo{}
+	this.Round = int32(r.Int31())
+	if r.Intn(2) == 0 {
+		this.Round *= -1
+	}
 	if r.Intn(10) != 0 {
 		v32 := r.Intn(5)
-		this.CommitVotes = make([]VoteInfo, v32)
+		this.Votes = make([]VoteInfo, v32)
 		for i := 0; i < v32; i++ {
 			v33 := NewPopulatedVoteInfo(r, easy)
-			this.CommitVotes[i] = *v33
+			this.Votes[i] = *v33
 		}
 	}
 	if !easy && r.Intn(10) != 0 {
-		this.XXX_unrecognized = randUnrecognizedTypes(r, 2)
+		this.XXX_unrecognized = randUnrecognizedTypes(r, 3)
 	}
 	return this
 }
@@ -8094,12 +8099,8 @@ func NewPopulatedVoteInfo(r randyTypes, easy bool) *VoteInfo {
 	v50 := NewPopulatedValidator(r, easy)
 	this.Validator = *v50
 	this.SignedLastBlock = bool(bool(r.Intn(2) == 0))
-	this.CommitRound = int64(r.Int63())
-	if r.Intn(2) == 0 {
-		this.CommitRound *= -1
-	}
 	if !easy && r.Intn(10) != 0 {
-		this.XXX_unrecognized = randUnrecognizedTypes(r, 4)
+		this.XXX_unrecognized = randUnrecognizedTypes(r, 3)
 	}
 	return this
 }
@@ -8946,8 +8947,11 @@ func (m *BlockGossip) Size() (n int) {
 func (m *LastCommitInfo) Size() (n int) {
 	var l int
 	_ = l
-	if len(m.CommitVotes) > 0 {
-		for _, e := range m.CommitVotes {
+	if m.Round != 0 {
+		n += 1 + sovTypes(uint64(m.Round))
+	}
+	if len(m.Votes) > 0 {
+		for _, e := range m.Votes {
 			l = e.Size()
 			n += 1 + l + sovTypes(uint64(l))
 		}
@@ -9089,9 +9093,6 @@ func (m *VoteInfo) Size() (n int) {
 	if m.SignedLastBlock {
 		n += 2
 	}
-	if m.CommitRound != 0 {
-		n += 1 + sovTypes(uint64(m.CommitRound))
-	}
 	if m.XXX_unrecognized != nil {
 		n += len(m.XXX_unrecognized)
 	}
@@ -13207,8 +13208,27 @@ func (m *LastCommitInfo) Unmarshal(dAtA []byte) error {
 		}
 		switch fieldNum {
 		case 1:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Round", wireType)
+			}
+			m.Round = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTypes
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Round |= (int32(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 2:
 			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field CommitVotes", wireType)
+				return fmt.Errorf("proto: wrong wireType = %d for field Votes", wireType)
 			}
 			var msglen int
 			for shift := uint(0); ; shift += 7 {
@@ -13232,8 +13252,8 @@ func (m *LastCommitInfo) Unmarshal(dAtA []byte) error {
 			if postIndex > l {
 				return io.ErrUnexpectedEOF
 			}
-			m.CommitVotes = append(m.CommitVotes, VoteInfo{})
-			if err := m.CommitVotes[len(m.CommitVotes)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+			m.Votes = append(m.Votes, VoteInfo{})
+			if err := m.Votes[len(m.Votes)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
 				return err
 			}
 			iNdEx = postIndex
@@ -14228,25 +14248,6 @@ func (m *VoteInfo) Unmarshal(dAtA []byte) error {
 				}
 			}
 			m.SignedLastBlock = bool(v != 0)
-		case 3:
-			if wireType != 0 {
-				return fmt.Errorf("proto: wrong wireType = %d for field CommitRound", wireType)
-			}
-			m.CommitRound = 0
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowTypes
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				m.CommitRound |= (int64(b) & 0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
 		default:
 			iNdEx = preIndex
 			skippy, err := skipTypes(dAtA[iNdEx:])
@@ -14663,144 +14664,144 @@ var (
 	ErrIntOverflowTypes   = fmt.Errorf("proto: integer overflow")
 )
 
-func init() { proto.RegisterFile("abci/types/types.proto", fileDescriptor_types_56d74249e896ebc1) }
+func init() { proto.RegisterFile("abci/types/types.proto", fileDescriptor_types_bafb6deff4c77e13) }
 func init() {
-	golang_proto.RegisterFile("abci/types/types.proto", fileDescriptor_types_56d74249e896ebc1)
-}
-
-var fileDescriptor_types_56d74249e896ebc1 = []byte{
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+	golang_proto.RegisterFile("abci/types/types.proto", fileDescriptor_types_bafb6deff4c77e13)
+}
+
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+	0x7a, 0x42, 0xbd, 0xa8, 0xb7, 0x26, 0xb5, 0xff, 0xd7, 0x8b, 0xcd, 0x96, 0xe4, 0xd9, 0x09, 0x26,
+	0x9e, 0x60, 0x93, 0x50, 0x5c, 0xd8, 0x28, 0x63, 0xfd, 0xc9, 0x90, 0xb9, 0x3b, 0x17, 0xbb, 0xa5,
+	0xb6, 0x88, 0x1d, 0xb4, 0x92, 0x81, 0xd9, 0x57, 0xb3, 0xcf, 0xff, 0x03, 0x0c, 0x29, 0x77, 0x3e,
+	0xa7, 0xbe, 0x60, 0xae, 0x36, 0x92, 0x39, 0xa4, 0xfc, 0x27, 0x38, 0x21, 0x6b, 0x12, 0x49, 0x9e,
+	0x72, 0xe6, 0xa2, 0xb5, 0x16, 0xed, 0xfa, 0x90, 0xf2, 0xa7, 0x9c, 0xb9, 0x89, 0x5e, 0xf5, 0x37,
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+	0xc9, 0x8f, 0x1c, 0xc3, 0xb5, 0xc4, 0xbd, 0x9d, 0x29, 0xba, 0x7d, 0xec, 0x0f, 0x2f, 0x8f, 0x8a,
+	0xd5, 0xf3, 0xfc, 0x34, 0x27, 0x3f, 0x84, 0xf5, 0x42, 0x70, 0x26, 0x0b, 0x56, 0x5e, 0x1a, 0xa3,
+	0x37, 0xf3, 0x31, 0x1a, 0xaf, 0x17, 0xeb, 0xba, 0xf8, 0x06, 0xba, 0x7e, 0x5d, 0x96, 0x27, 0xd9,
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+	0x27, 0x77, 0x61, 0x59, 0x2d, 0x3c, 0x0c, 0x38, 0xf7, 0x42, 0x5d, 0x44, 0x90, 0xec, 0xd2, 0x1f,
+	0x23, 0xc5, 0x6e, 0xf6, 0xd3, 0x81, 0xf5, 0x53, 0x30, 0x93, 0x6d, 0xc9, 0x5b, 0x60, 0x4e, 0xe8,
+	0x4c, 0x57, 0xb9, 0xf2, 0x6c, 0x4b, 0x76, 0x63, 0x42, 0x67, 0x58, 0xe0, 0x92, 0x75, 0xa8, 0x4b,
+	0xa2, 0x98, 0x29, 0x7b, 0x2f, 0xd9, 0xb5, 0x09, 0x9d, 0x3d, 0x99, 0x25, 0x84, 0x21, 0xe5, 0x71,
+	0x09, 0x3b, 0xa1, 0xb3, 0x8f, 0x29, 0xb7, 0x3e, 0x82, 0x9a, 0x3a, 0xe4, 0x2b, 0x2d, 0x2c, 0xe5,
+	0x2b, 0x39, 0xf9, 0xef, 0x41, 0x33, 0x73, 0x6e, 0xf2, 0x2d, 0xb8, 0xa9, 0x34, 0x0c, 0x69, 0x24,
+	0xd0, 0x22, 0xb9, 0x05, 0x09, 0x12, 0x4f, 0x68, 0x24, 0xe4, 0x96, 0xaa, 0x28, 0x7f, 0x0c, 0xad,
+	0x7c, 0xe1, 0x2a, 0xf3, 0x5a, 0x14, 0x4c, 0x7d, 0x57, 0x0b, 0xa9, 0x81, 0xec, 0x5a, 0xcf, 0x03,
+	0xe5, 0x49, 0xd9, 0x4a, 0xf5, 0x34, 0x10, 0x2c, 0x53, 0xee, 0x2a, 0x1e, 0xeb, 0x0f, 0x55, 0xa8,
+	0xa9, 0x2a, 0x9a, 0xdc, 0xc9, 0x34, 0x2e, 0x08, 0x91, 0xbd, 0xe6, 0xe5, 0x8b, 0xcd, 0x3a, 0xa2,
+	0xc9, 0xf1, 0xc3, 0xb4, 0x8b, 0x49, 0xf3, 0x66, 0x25, 0x57, 0xe4, 0xc7, 0x2d, 0xd3, 0xe2, 0x6b,
+	0xb7, 0x4c, 0xeb, 0x50, 0xf7, 0xa7, 0x13, 0xbc, 0x8d, 0xaa, 0x5a, 0xd2, 0x9f, 0x4e, 0xe4, 0x6d,
+	0xbc, 0x05, 0xa6, 0x08, 0x04, 0x1d, 0x23, 0x49, 0xc5, 0x7e, 0x03, 0x27, 0x24, 0xf1, 0x00, 0x56,
+	0x32, 0xa0, 0xeb, 0xb9, 0xba, 0xa2, 0x6b, 0x65, 0xbd, 0xe4, 0xf8, 0xa1, 0x56, 0xb7, 0x99, 0x80,
+	0xf0, 0xb1, 0x4b, 0xb6, 0xf2, 0x1d, 0x02, 0x62, 0xb5, 0x02, 0x8c, 0x4c, 0x13, 0x20, 0x91, 0x5a,
+	0x1e, 0x40, 0x7a, 0xbf, 0x62, 0x51, 0xe8, 0xd1, 0x90, 0x13, 0x48, 0x7c, 0x1b, 0xda, 0x29, 0xdc,
+	0x29, 0x16, 0x53, 0xad, 0x92, 0x4e, 0x23, 0xe3, 0x7b, 0x70, 0xc3, 0x67, 0x33, 0xe1, 0x14, 0xb9,
+	0x01, 0xb9, 0x89, 0xa4, 0x9d, 0xe6, 0x25, 0xbe, 0x01, 0xad, 0x34, 0x3f, 0x20, 0x6f, 0x53, 0xf5,
+	0x69, 0xc9, 0x2c, 0xb2, 0xdd, 0x82, 0x46, 0x52, 0x6c, 0x2c, 0x23, 0x43, 0x9d, 0xaa, 0x1a, 0x23,
+	0x29, 0x5f, 0x22, 0xc6, 0xa7, 0x63, 0xa1, 0x17, 0x59, 0x41, 0x1e, 0x2c, 0x5f, 0x6c, 0x35, 0x8f,
+	0xbc, 0x5f, 0x83, 0x15, 0xa6, 0xfb, 0x18, 0xc5, 0xd7, 0x42, 0xbe, 0xe5, 0x78, 0x12, 0x99, 0xb6,
+	0x61, 0x35, 0x8c, 0x82, 0x30, 0xe0, 0x2c, 0x72, 0xa8, 0xeb, 0x46, 0x8c, 0xf3, 0x4e, 0x5b, 0xad,
+	0x17, 0xcf, 0x1f, 0xaa, 0x69, 0xeb, 0x67, 0x50, 0xd7, 0xd6, 0x2f, 0xed, 0xe6, 0xbe, 0x0b, 0xcb,
+	0xd2, 0xeb, 0xb9, 0x93, 0xeb, 0xe9, 0xe2, 0x9a, 0x1a, 0x9d, 0x9e, 0x89, 0x5c, 0x6b, 0xd7, 0x44,
+	0x7e, 0x35, 0x65, 0xdd, 0x83, 0x95, 0x1c, 0x8f, 0x0c, 0x03, 0x74, 0x8a, 0x38, 0x0c, 0x70, 0x90,
+	0xec, 0x5c, 0x49, 0x77, 0xb6, 0xee, 0x83, 0x99, 0x18, 0x5a, 0x96, 0x7e, 0xb1, 0x1e, 0x86, 0xb6,
+	0x9d, 0x1a, 0x62, 0xbd, 0x10, 0x7c, 0xce, 0x22, 0x9d, 0x02, 0xd4, 0xc0, 0x7a, 0x0a, 0xed, 0x42,
+	0x7a, 0x27, 0x3b, 0x50, 0x0f, 0xa7, 0x7d, 0x27, 0x7e, 0x66, 0x48, 0xf3, 0xd9, 0xc9, 0xb4, 0xff,
+	0x09, 0xbb, 0x88, 0x1b, 0xd3, 0x10, 0x47, 0xe9, 0xb2, 0x95, 0xec, 0xb2, 0x63, 0x68, 0xc4, 0xa1,
+	0x49, 0xbe, 0x0d, 0x66, 0xe2, 0x23, 0x85, 0x7c, 0x9a, 0x6c, 0xad, 0x17, 0x4d, 0x19, 0xe5, 0x55,
+	0x73, 0x6f, 0xe8, 0x33, 0xd7, 0x49, 0xe3, 0x01, 0xf7, 0x68, 0xd8, 0x6d, 0x45, 0xf8, 0x34, 0x76,
+	0x7e, 0xeb, 0x3d, 0xa8, 0xa9, 0xb3, 0x49, 0xfb, 0xc8, 0x95, 0xe3, 0x6a, 0x58, 0x7e, 0x97, 0x26,
+	0xfe, 0x3f, 0x1a, 0xd0, 0x88, 0xbb, 0xdc, 0x52, 0xa1, 0xdc, 0xa1, 0x2b, 0xaf, 0x7a, 0xe8, 0x79,
+	0x4f, 0x05, 0x71, 0x16, 0xa9, 0xbe, 0x76, 0x16, 0xd9, 0x01, 0xa2, 0x92, 0xc5, 0x79, 0x20, 0x3c,
+	0x7f, 0xe8, 0x28, 0x5b, 0xab, 0xac, 0xb1, 0x8a, 0x94, 0x53, 0x24, 0x9c, 0xc8, 0xf9, 0xfd, 0x2f,
+	0x96, 0xa0, 0x7d, 0xd8, 0x7b, 0x70, 0x7c, 0x18, 0x86, 0x63, 0x6f, 0x40, 0xb1, 0x04, 0xdf, 0x83,
+	0x2a, 0x36, 0x19, 0x25, 0xcf, 0x9b, 0xdd, 0xb2, 0x6e, 0x97, 0xec, 0xc3, 0x12, 0xf6, 0x1a, 0xa4,
+	0xec, 0x95, 0xb3, 0x5b, 0xda, 0xf4, 0xca, 0x4d, 0x54, 0x37, 0x72, 0xf5, 0xb1, 0xb3, 0x5b, 0xd6,
+	0xf9, 0x92, 0x8f, 0xc0, 0x4c, 0xbb, 0x84, 0x79, 0x4f, 0x9e, 0xdd, 0xb9, 0x3d, 0xb0, 0x94, 0x4f,
+	0x8b, 0xb3, 0x79, 0x2f, 0x77, 0xdd, 0xb9, 0xcd, 0x22, 0x39, 0x80, 0x7a, 0x5c, 0xb4, 0x96, 0x3f,
+	0x4a, 0x76, 0xe7, 0xf4, 0xa7, 0xd2, 0x3c, 0xaa, 0xf0, 0x2f, 0x7b, 0x39, 0xed, 0x96, 0x36, 0xd1,
+	0xe4, 0x2e, 0xd4, 0x74, 0x15, 0x52, 0xfa, 0x30, 0xd9, 0x2d, 0xef, 0x32, 0xa5, 0x92, 0x69, 0xeb,
+	0x33, 0xef, 0x75, 0xb7, 0x3b, 0xb7, 0xdb, 0x27, 0x87, 0x00, 0x99, 0x62, 0x7f, 0xee, 0xb3, 0x6d,
+	0x77, 0x7e, 0x17, 0x4f, 0xee, 0x43, 0x23, 0x7d, 0x99, 0x29, 0x7f, 0x88, 0xed, 0xce, 0x6b, 0xac,
+	0x7b, 0xff, 0xf7, 0xef, 0xbf, 0x6d, 0x18, 0xbf, 0xba, 0xdc, 0x30, 0x7e, 0x73, 0xb9, 0x61, 0x7c,
+	0x75, 0xb9, 0x61, 0xfc, 0xfe, 0x72, 0xc3, 0xf8, 0xeb, 0xe5, 0x86, 0xf1, 0xdb, 0xbf, 0x6f, 0x18,
+	0xfd, 0x1a, 0xba, 0xff, 0xfb, 0xff, 0x09, 0x00, 0x00, 0xff, 0xff, 0xd6, 0x32, 0xa1, 0x6a, 0x3b,
+	0x18, 0x00, 0x00,
 }
diff --git a/abci/types/types.proto b/abci/types/types.proto
index a2eb65eb7..ae550c0a5 100644
--- a/abci/types/types.proto
+++ b/abci/types/types.proto
@@ -225,7 +225,8 @@ message BlockGossip {
 }
 
 message LastCommitInfo {
-  repeated VoteInfo commit_votes = 1 [(gogoproto.nullable)=false];
+  int32 round = 1;
+  repeated VoteInfo votes = 2 [(gogoproto.nullable)=false];
 }
 
 //----------------------------------------
@@ -271,6 +272,7 @@ message PartSetHeader {
 // Validator
 message Validator {
   bytes address = 1;
+  //PubKey pub_key = 2 [(gogoproto.nullable)=false];
   int64 power = 3;
 }
 
@@ -284,7 +286,6 @@ message ValidatorUpdate {
 message VoteInfo {
   Validator validator = 1 [(gogoproto.nullable)=false];
   bool signed_last_block = 2;
-  int64 commit_round = 3;
 }
 
 message PubKey {
diff --git a/state/execution.go b/state/execution.go
index 71b3ec1c1..4872584a4 100644
--- a/state/execution.go
+++ b/state/execution.go
@@ -184,15 +184,13 @@ func execBlockOnProxyApp(logger log.Logger, proxyAppConn proxy.AppConnConsensus,
 	}
 	proxyAppConn.SetResponseCallback(proxyCb)
 
-	voteInfos, byzVals := getBeginBlockValidatorInfo(block, lastValSet, stateDB)
+	commitInfo, byzVals := getBeginBlockValidatorInfo(block, lastValSet, stateDB)
 
 	// Begin block.
 	_, err := proxyAppConn.BeginBlockSync(abci.RequestBeginBlock{
-		Hash:   block.Hash(),
-		Header: types.TM2PB.Header(&block.Header),
-		LastCommitInfo: abci.LastCommitInfo{
-			CommitVotes: voteInfos,
-		},
+		Hash:                block.Hash(),
+		Header:              types.TM2PB.Header(&block.Header),
+		LastCommitInfo:      commitInfo,
 		ByzantineValidators: byzVals,
 	})
 	if err != nil {
@@ -225,7 +223,7 @@ func execBlockOnProxyApp(logger log.Logger, proxyAppConn proxy.AppConnConsensus,
 	return abciResponses, nil
 }
 
-func getBeginBlockValidatorInfo(block *types.Block, lastValSet *types.ValidatorSet, stateDB dbm.DB) ([]abci.VoteInfo, []abci.Evidence) {
+func getBeginBlockValidatorInfo(block *types.Block, lastValSet *types.ValidatorSet, stateDB dbm.DB) (abci.LastCommitInfo, []abci.Evidence) {
 
 	// Sanity check that commit length matches validator set size -
 	// only applies after first block
@@ -239,25 +237,25 @@ func getBeginBlockValidatorInfo(block *types.Block, lastValSet *types.ValidatorS
 		}
 	}
 
-	// determine which validators did not sign last block.
+	// Collect the vote info (list of validators and whether or not they signed).
 	voteInfos := make([]abci.VoteInfo, len(lastValSet.Validators))
 	for i, val := range lastValSet.Validators {
 		var vote *types.Vote
-		var commitRound = -1
 		if i < len(block.LastCommit.Precommits) {
 			vote = block.LastCommit.Precommits[i]
-			if vote != nil {
-				commitRound = vote.Round
-			}
 		}
 		voteInfo := abci.VoteInfo{
 			Validator:       types.TM2PB.Validator(val),
-			SignedLastBlock: vote != nil,        // XXX: should we replace with commitRound == -1 ?
-			CommitRound:     int64(commitRound), //XXX: why is round an int?
+			SignedLastBlock: vote != nil,
 		}
 		voteInfos[i] = voteInfo
 	}
 
+	commitInfo := abci.LastCommitInfo{
+		Round: int32(block.LastCommit.Round()),
+		Votes: voteInfos,
+	}
+
 	byzVals := make([]abci.Evidence, len(block.Evidence.Evidence))
 	for i, ev := range block.Evidence.Evidence {
 		// We need the validator set. We already did this in validateBlock.
@@ -270,7 +268,7 @@ func getBeginBlockValidatorInfo(block *types.Block, lastValSet *types.ValidatorS
 		byzVals[i] = types.TM2PB.Evidence(ev, valset, block.Time)
 	}
 
-	return voteInfos, byzVals
+	return commitInfo, byzVals
 
 }
 
diff --git a/state/execution_test.go b/state/execution_test.go
index 52baadf3f..e50172e17 100644
--- a/state/execution_test.go
+++ b/state/execution_test.go
@@ -347,7 +347,7 @@ func (app *testApp) Info(req abci.RequestInfo) (resInfo abci.ResponseInfo) {
 }
 
 func (app *testApp) BeginBlock(req abci.RequestBeginBlock) abci.ResponseBeginBlock {
-	app.CommitVotes = req.LastCommitInfo.CommitVotes
+	app.CommitVotes = req.LastCommitInfo.Votes
 	app.ByzantineValidators = req.ByzantineValidators
 	return abci.ResponseBeginBlock{}
 }