diff --git a/Gopkg.lock b/Gopkg.lock
index 5e40c17e6..1c396c1ac 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -38,7 +38,7 @@
   name = "github.com/btcsuite/btcd"
   packages = ["btcec"]
   pruneopts = "UT"
-  revision = "d81d8877b8f327112e94e814937143a71d1692a7"
+  revision = "79e00513b1011888b1e675157ab89f527f901cae"
 
 [[projects]]
   digest = "1:386de157f7d19259a7f9c81f26ce011223ce0f090353c1152ffdf730d7d10ac2"
@@ -95,12 +95,12 @@
   version = "v0.3.0"
 
 [[projects]]
-  digest = "1:c4a2528ccbcabf90f9f3c464a5fc9e302d592861bbfd0b7135a7de8a943d0406"
+  digest = "1:586ea76dbd0374d6fb649a91d70d652b7fe0ccffb8910a77468e7702e7901f3d"
   name = "github.com/go-stack/stack"
   packages = ["."]
   pruneopts = "UT"
-  revision = "259ab82a6cad3992b4e21ff5cac294ccb06474bc"
-  version = "v1.7.0"
+  revision = "2fee6af1a9795aafbe0253a0cfbdf668e1fb8a9a"
+  version = "v1.8.0"
 
 [[projects]]
   digest = "1:35621fe20f140f05a0c4ef662c26c0ab4ee50bca78aa30fe87d33120bd28165e"
@@ -164,13 +164,13 @@
   version = "v1.2.0"
 
 [[projects]]
-  branch = "master"
-  digest = "1:12247a2e99a060cc692f6680e5272c8adf0b8f572e6bce0d7095e624c958a240"
+  digest = "1:c0d19ab64b32ce9fe5cf4ddceba78d5bc9807f0016db6b1183599da3dcc24d10"
   name = "github.com/hashicorp/hcl"
   packages = [
     ".",
     "hcl/ast",
     "hcl/parser",
+    "hcl/printer",
     "hcl/scanner",
     "hcl/strconv",
     "hcl/token",
@@ -179,7 +179,8 @@
     "json/token",
   ]
   pruneopts = "UT"
-  revision = "ef8a98b0bbce4a65b5aa4c368430a80ddc533168"
+  revision = "8cb6e5b959231cc1119e43259c4a608f9c51a241"
+  version = "v1.0.0"
 
 [[projects]]
   digest = "1:870d441fe217b8e689d7949fef6e43efbc787e50f200cb1e70dbca9204a1d6be"
@@ -214,12 +215,12 @@
   version = "v1.8.0"
 
 [[projects]]
-  digest = "1:d4d17353dbd05cb52a2a52b7fe1771883b682806f68db442b436294926bbfafb"
+  digest = "1:0981502f9816113c9c8c4ac301583841855c8cf4da8c72f696b3ebedf6d0e4e5"
   name = "github.com/mattn/go-isatty"
   packages = ["."]
   pruneopts = "UT"
-  revision = "0360b2af4f38e8d38c7fce2a9f4e702702d73a39"
-  version = "v0.0.3"
+  revision = "6ca4dbf54d38eea1a992b3c722a76a5d1c4cb25c"
+  version = "v0.0.4"
 
 [[projects]]
   digest = "1:ff5ebae34cfbf047d505ee150de27e60570e8c394b3b8fdbb720ff6ac71985fc"
@@ -394,6 +395,13 @@
   pruneopts = "UT"
   revision = "ae2bd5eed72d46b28834ec3f60db3a3ebedd8dbd"
 
+[[projects]]
+  digest = "1:605b6546f3f43745695298ec2d342d3e952b6d91cdf9f349bea9315f677d759f"
+  name = "github.com/tendermint/btcd"
+  packages = ["btcec"]
+  pruneopts = "UT"
+  revision = "e5840949ff4fff0c56f9b6a541e22b63581ea9df"
+
 [[projects]]
   branch = "master"
   digest = "1:087aaa7920e5d0bf79586feb57ce01c35c830396ab4392798112e8aae8c47722"
@@ -423,7 +431,8 @@
   version = "v0.9.2"
 
 [[projects]]
-  digest = "1:4f15e95fe3888cc75dd34f407d6394cbc7fd3ff24920851b92b295f6a8b556e6"
+  branch = "develop"
+  digest = "1:010630eb6059fa5dd143b9cddb8c9e7c740a9267aca553455de7839515b2fee0"
   name = "github.com/tendermint/tendermint"
   packages = [
     "abci/client",
@@ -441,6 +450,8 @@
     "crypto/ed25519",
     "crypto/encoding/amino",
     "crypto/merkle",
+    "crypto/multisig",
+    "crypto/multisig/bitarray",
     "crypto/secp256k1",
     "crypto/tmhash",
     "crypto/xsalsa20symmetric",
@@ -460,7 +471,6 @@
     "lite",
     "lite/client",
     "lite/errors",
-    "lite/files",
     "lite/proxy",
     "mempool",
     "node",
@@ -483,11 +493,11 @@
     "state/txindex/kv",
     "state/txindex/null",
     "types",
+    "types/time",
     "version",
   ]
   pruneopts = "UT"
-  revision = "81df19e68ab1519399fccf0cab81cb75bf9d782e"
-  version = "v0.23.1-rc0"
+  revision = "1de32fba17a392b656c73a917843724b92b8989d"
 
 [[projects]]
   digest = "1:bf6d9a827ea3cad964c2f863302e4f6823170d0b5ed16f72cf1184a7c615067e"
@@ -525,7 +535,7 @@
     "salsa20/salsa",
   ]
   pruneopts = "UT"
-  revision = "614d502a4dac94afa3a6ce146bd1736da82514c6"
+  revision = "182538f80094b6a8efaade63a8fd8e0d9d5843dd"
 
 [[projects]]
   digest = "1:d36f55a999540d29b6ea3c2ea29d71c76b1d9853fdcd3e5c5cb4836f2ba118f1"
@@ -545,14 +555,14 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:86171d21d59449dcf7cee0b7d2da83dff989dab9b9b69bfe0a3d59c3c1ca6081"
+  digest = "1:0cd3b4a6aec2641ff2bf7e35d93427787c60e5d94998460aab8f54921a1bc2db"
   name = "golang.org/x/sys"
   packages = [
     "cpu",
     "unix",
   ]
   pruneopts = "UT"
-  revision = "11551d06cbcc94edc80a0facaccbda56473c19c1"
+  revision = "fa5fdf94c78965f1aa8423f0cc50b8b8d728b05a"
 
 [[projects]]
   digest = "1:a2ab62866c75542dd18d2b069fec854577a20211d7c0ea6ae746072a1dccdd18"
@@ -583,7 +593,7 @@
   name = "google.golang.org/genproto"
   packages = ["googleapis/rpc/status"]
   pruneopts = "UT"
-  revision = "c66870c02cf823ceb633bcd05be3c7cda29976f4"
+  revision = "11092d34479b07829b72e10713b159248caf5dad"
 
 [[projects]]
   digest = "1:2dab32a43451e320e49608ff4542fdfc653c95dcc35d0065ec9c6c3dd540ed74"
diff --git a/Gopkg.toml b/Gopkg.toml
index 4368699b6..dc52ec76a 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -57,7 +57,7 @@
 
 [[override]]
   name = "github.com/tendermint/tendermint"
-  version = "=v0.23.1-rc0"
+  branch = "develop"
 
 [[constraint]]
   name = "github.com/bartekn/go-bip39"
diff --git a/baseapp/baseapp.go b/baseapp/baseapp.go
index 60c694ff7..a03b3cdbe 100644
--- a/baseapp/baseapp.go
+++ b/baseapp/baseapp.go
@@ -64,9 +64,9 @@ type BaseApp struct {
 	// checkState is set on initialization and reset on Commit.
 	// deliverState is set in InitChain and BeginBlock and cleared on Commit.
 	// See methods setCheckState and setDeliverState.
-	checkState       *state                  // for CheckTx
-	deliverState     *state                  // for DeliverTx
-	signedValidators []abci.SigningValidator // absent validators from begin block
+	checkState   *state          // for CheckTx
+	deliverState *state          // for DeliverTx
+	voteInfos    []abci.VoteInfo // absent validators from begin block
 
 	// flag for sealing
 	sealed bool
@@ -494,12 +494,12 @@ func validateBasicTxMsgs(msgs []sdk.Msg) sdk.Error {
 }
 
 // retrieve the context for the ante handler and store the tx bytes; store
-// the signing validators if the tx runs within the deliverTx() state.
+// the vote infos if the tx runs within the deliverTx() state.
 func (app *BaseApp) getContextForAnte(mode runTxMode, txBytes []byte) (ctx sdk.Context) {
 	// Get the context
 	ctx = getState(app, mode).ctx.WithTxBytes(txBytes)
 	if mode == runTxModeDeliver {
-		ctx = ctx.WithSigningValidators(app.signedValidators)
+		ctx = ctx.WithVoteInfos(app.voteInfos)
 	}
 	return
 }
diff --git a/types/context.go b/types/context.go
index 44b0474e8..d48a9d989 100644
--- a/types/context.go
+++ b/types/context.go
@@ -42,7 +42,7 @@ func NewContext(ms MultiStore, header abci.Header, isCheckTx bool, logger log.Lo
 	c = c.WithChainID(header.ChainID)
 	c = c.WithTxBytes(nil)
 	c = c.WithLogger(logger)
-	c = c.WithSigningValidators(nil)
+	c = c.WithVoteInfos(nil)
 	c = c.WithGasMeter(NewInfiniteGasMeter())
 	return c
 }
@@ -133,7 +133,7 @@ const (
 	contextKeyChainID
 	contextKeyTxBytes
 	contextKeyLogger
-	contextKeySigningValidators
+	contextKeyVoteInfos
 	contextKeyGasMeter
 )
 
@@ -163,8 +163,8 @@ func (c Context) TxBytes() []byte {
 func (c Context) Logger() log.Logger {
 	return c.Value(contextKeyLogger).(log.Logger)
 }
-func (c Context) SigningValidators() []abci.SigningValidator {
-	return c.Value(contextKeySigningValidators).([]abci.SigningValidator)
+func (c Context) VoteInfos() []abci.VoteInfo {
+	return c.Value(contextKeyVoteInfos).([]abci.VoteInfo)
 }
 func (c Context) GasMeter() GasMeter {
 	return c.Value(contextKeyGasMeter).(GasMeter)
@@ -195,8 +195,8 @@ func (c Context) WithTxBytes(txBytes []byte) Context {
 func (c Context) WithLogger(logger log.Logger) Context {
 	return c.withValue(contextKeyLogger, logger)
 }
-func (c Context) WithSigningValidators(SigningValidators []abci.SigningValidator) Context {
-	return c.withValue(contextKeySigningValidators, SigningValidators)
+func (c Context) WithVoteInfos(VoteInfos []abci.VoteInfo) Context {
+	return c.withValue(contextKeyVoteInfos, VoteInfos)
 }
 func (c Context) WithGasMeter(meter GasMeter) Context {
 	return c.withValue(contextKeyGasMeter, meter)
diff --git a/types/context_test.go b/types/context_test.go
index b11a774cd..c5ec604fa 100644
--- a/types/context_test.go
+++ b/types/context_test.go
@@ -151,7 +151,7 @@ func TestContextWithCustom(t *testing.T) {
 	require.Panics(t, func() { ctx.ChainID() })
 	require.Panics(t, func() { ctx.TxBytes() })
 	require.Panics(t, func() { ctx.Logger() })
-	require.Panics(t, func() { ctx.SigningValidators() })
+	require.Panics(t, func() { ctx.VoteInfos() })
 	require.Panics(t, func() { ctx.GasMeter() })
 
 	header := abci.Header{}
@@ -160,14 +160,14 @@ func TestContextWithCustom(t *testing.T) {
 	ischeck := true
 	txbytes := []byte("txbytes")
 	logger := NewMockLogger()
-	signvals := []abci.SigningValidator{{}}
+	voteinfos := []abci.VoteInfo{{}}
 	meter := types.NewGasMeter(10000)
 
 	ctx = types.NewContext(nil, header, ischeck, logger).
 		WithBlockHeight(height).
 		WithChainID(chainid).
 		WithTxBytes(txbytes).
-		WithSigningValidators(signvals).
+		WithVoteInfos(voteinfos).
 		WithGasMeter(meter)
 
 	require.Equal(t, header, ctx.BlockHeader())
@@ -175,7 +175,7 @@ func TestContextWithCustom(t *testing.T) {
 	require.Equal(t, chainid, ctx.ChainID())
 	require.Equal(t, txbytes, ctx.TxBytes())
 	require.Equal(t, logger, ctx.Logger())
-	require.Equal(t, signvals, ctx.SigningValidators())
+	require.Equal(t, voteinfos, ctx.VoteInfos())
 	require.Equal(t, meter, ctx.GasMeter())
 
 }
diff --git a/types/stake.go b/types/stake.go
index ba11cd5f8..c52e020dd 100644
--- a/types/stake.go
+++ b/types/stake.go
@@ -3,7 +3,6 @@ package types
 import (
 	abci "github.com/tendermint/tendermint/abci/types"
 	"github.com/tendermint/tendermint/crypto"
-	tmtypes "github.com/tendermint/tendermint/types"
 )
 
 // status of a validator
@@ -51,7 +50,6 @@ type Validator interface {
 // validator which fulfills abci validator interface for use in Tendermint
 func ABCIValidator(v Validator) abci.Validator {
 	return abci.Validator{
-		PubKey:  tmtypes.TM2PB.PubKey(v.GetPubKey()),
 		Address: v.GetPubKey().Address(),
 		Power:   v.GetPower().RoundInt64(),
 	}
diff --git a/x/mock/simulation/random_simulate_blocks.go b/x/mock/simulation/random_simulate_blocks.go
index fc7543280..02000cc35 100644
--- a/x/mock/simulation/random_simulate_blocks.go
+++ b/x/mock/simulation/random_simulate_blocks.go
@@ -77,9 +77,9 @@ func SimulateFromSeed(
 	opCount := 0
 
 	var pastTimes []time.Time
-	var pastSigningValidators [][]abci.SigningValidator
+	var pastVoteInfos [][]abci.VoteInfo
 
-	request := RandomRequestBeginBlock(r, validators, livenessTransitionMatrix, evidenceFraction, pastTimes, pastSigningValidators, event, header, log)
+	request := RandomRequestBeginBlock(r, validators, livenessTransitionMatrix, evidenceFraction, pastTimes, pastVoteInfos, event, header, log)
 	// These are operations which have been queued by previous operations
 	operationQueue := make(map[int][]Operation)
 
@@ -91,7 +91,7 @@ func SimulateFromSeed(
 	for i := 0; i < numBlocks; i++ {
 		// Log the header time for future lookup
 		pastTimes = append(pastTimes, header.Time)
-		pastSigningValidators = append(pastSigningValidators, request.LastCommitInfo.Validators)
+		pastVoteInfos = append(pastVoteInfos, request.LastCommitInfo.Validators)
 
 		// Run the BeginBlock handler
 		app.BeginBlock(request)
@@ -126,7 +126,7 @@ func SimulateFromSeed(
 		}
 
 		// Generate a random RequestBeginBlock with the current validator set for the next block
-		request = RandomRequestBeginBlock(r, validators, livenessTransitionMatrix, evidenceFraction, pastTimes, pastSigningValidators, event, header, log)
+		request = RandomRequestBeginBlock(r, validators, livenessTransitionMatrix, evidenceFraction, pastTimes, pastVoteInfos, event, header, log)
 
 		// Update the validator set
 		validators = updateValidators(tb, r, validators, res.ValidatorUpdates, event)
@@ -244,11 +244,11 @@ func getKeys(validators map[string]mockValidator) []string {
 
 // RandomRequestBeginBlock generates a list of signing validators according to the provided list of validators, signing fraction, and evidence fraction
 func RandomRequestBeginBlock(r *rand.Rand, validators map[string]mockValidator, livenessTransitions TransitionMatrix, evidenceFraction float64,
-	pastTimes []time.Time, pastSigningValidators [][]abci.SigningValidator, event func(string), header abci.Header, log string) abci.RequestBeginBlock {
+	pastTimes []time.Time, pastVoteInfos [][]abci.VoteInfo, event func(string), header abci.Header, log string) abci.RequestBeginBlock {
 	if len(validators) == 0 {
 		return abci.RequestBeginBlock{Header: header}
 	}
-	signingValidators := make([]abci.SigningValidator, len(validators))
+	voteInfos := make([]abci.VoteInfo, len(validators))
 	i := 0
 	for _, key := range getKeys(validators) {
 		mVal := validators[key]
@@ -269,7 +269,7 @@ func RandomRequestBeginBlock(r *rand.Rand, validators map[string]mockValidator,
 		} else {
 			event("beginblock/signing/missed")
 		}
-		signingValidators[i] = abci.SigningValidator{
+		voteInfos[i] = abci.VoteInfo{
 			Validator:       mVal.val,
 			SignedLastBlock: signed,
 		}
@@ -282,11 +282,11 @@ func RandomRequestBeginBlock(r *rand.Rand, validators map[string]mockValidator,
 		for r.Float64() < evidenceFraction {
 			height := header.Height
 			time := header.Time
-			vals := signingValidators
+			vals := voteInfos
 			if r.Float64() < pastEvidenceFraction {
 				height = int64(r.Intn(int(header.Height)))
 				time = pastTimes[height]
-				vals = pastSigningValidators[height]
+				vals = pastVoteInfos[height]
 			}
 			validator := vals[r.Intn(len(vals))].Validator
 			var totalVotingPower int64
@@ -306,7 +306,7 @@ func RandomRequestBeginBlock(r *rand.Rand, validators map[string]mockValidator,
 	return abci.RequestBeginBlock{
 		Header: header,
 		LastCommitInfo: abci.LastCommitInfo{
-			Validators: signingValidators,
+			Validators: voteInfos,
 		},
 		ByzantineValidators: evidence,
 	}
diff --git a/x/slashing/tick.go b/x/slashing/tick.go
index 253daa412..3210a0f33 100644
--- a/x/slashing/tick.go
+++ b/x/slashing/tick.go
@@ -20,9 +20,8 @@ func BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock, sk Keeper) (tags
 	// Iterate over all the validators  which *should* have signed this block
 	// Store whether or not they have actually signed it and slash/unbond any
 	// which have missed too many blocks in a row (downtime slashing)
-	for _, signingValidator := range req.LastCommitInfo.GetValidators() {
-		present := signingValidator.SignedLastBlock
-		sk.handleValidatorSignature(ctx, signingValidator.Validator.Address, signingValidator.Validator.Power, present)
+	for _, voteInfo := range req.LastCommitInfo.GetVoteInfos() {
+		sk.handleValidatorSignature(ctx, voteInfo.Validator.Address, voteInfo.Validator.Power, voteInfo.SignedLastBlock)
 	}
 
 	// Iterate through any newly discovered evidence of infraction
diff --git a/x/slashing/tick_test.go b/x/slashing/tick_test.go
index 25167578d..fccdd844a 100644
--- a/x/slashing/tick_test.go
+++ b/x/slashing/tick_test.go
@@ -32,7 +32,7 @@ func TestBeginBlocker(t *testing.T) {
 	// mark the validator as having signed
 	req := abci.RequestBeginBlock{
 		LastCommitInfo: abci.LastCommitInfo{
-			Validators: []abci.SigningValidator{{
+			Validators: []abci.VoteInfo{{
 				Validator:       val,
 				SignedLastBlock: true,
 			}},
@@ -54,7 +54,7 @@ func TestBeginBlocker(t *testing.T) {
 		ctx = ctx.WithBlockHeight(height)
 		req = abci.RequestBeginBlock{
 			LastCommitInfo: abci.LastCommitInfo{
-				Validators: []abci.SigningValidator{{
+				Validators: []abci.VoteInfo{{
 					Validator:       val,
 					SignedLastBlock: true,
 				}},
@@ -68,7 +68,7 @@ func TestBeginBlocker(t *testing.T) {
 		ctx = ctx.WithBlockHeight(height)
 		req = abci.RequestBeginBlock{
 			LastCommitInfo: abci.LastCommitInfo{
-				Validators: []abci.SigningValidator{{
+				Validators: []abci.VoteInfo{{
 					Validator:       val,
 					SignedLastBlock: false,
 				}},
diff --git a/x/stake/types/validator.go b/x/stake/types/validator.go
index 0d9309311..7e71b5b25 100644
--- a/x/stake/types/validator.go
+++ b/x/stake/types/validator.go
@@ -312,7 +312,6 @@ func (d Description) EnsureLength() (Description, sdk.Error) {
 // ABCIValidator returns an abci.Validator from a staked validator type.
 func (v Validator) ABCIValidator() abci.Validator {
 	return abci.Validator{
-		PubKey:  tmtypes.TM2PB.PubKey(v.PubKey),
 		Address: v.PubKey.Address(),
 		Power:   v.BondedTokens().RoundInt64(),
 	}
@@ -322,7 +321,6 @@ func (v Validator) ABCIValidator() abci.Validator {
 // with with zero power used for validator updates.
 func (v Validator) ABCIValidatorZero() abci.Validator {
 	return abci.Validator{
-		PubKey:  tmtypes.TM2PB.PubKey(v.PubKey),
 		Address: v.PubKey.Address(),
 		Power:   0,
 	}