diff --git a/kv/kv.go b/kv/kv.go
index 68369bf1eb..0b0067a79f 100644
--- a/kv/kv.go
+++ b/kv/kv.go
@@ -66,9 +66,6 @@ type Transaction interface {
 	UnionStore
 	// Commit commits the transaction operations to KV store.
 	Commit() error
-	// CommittedVersion returns the version of this committed transaction. If this
-	// transaction has not been committed, returns ErrNotCommitted error.
-	CommittedVersion() (Version, error)
 	// Rollback undoes the transaction operations to KV store.
 	Rollback() error
 	// String implements fmt.Stringer interface.
diff --git a/store/hbase/txn.go b/store/hbase/txn.go
index 4910959789..2e76fbcee9 100644
--- a/store/hbase/txn.go
+++ b/store/hbase/txn.go
@@ -155,14 +155,6 @@ func (txn *hbaseTxn) Commit() error {
 	return txn.doCommit()
 }
 
-func (txn *hbaseTxn) CommittedVersion() (kv.Version, error) {
-	// Check if this transaction is not committed.
-	if txn.version.Cmp(kv.MinVersion) == 0 {
-		return kv.MinVersion, kv.ErrNotCommitted
-	}
-	return txn.version, nil
-}
-
 func (txn *hbaseTxn) close() error {
 	txn.UnionStore.Release()
 	txn.valid = false
diff --git a/store/localstore/mvcc_test.go b/store/localstore/mvcc_test.go
index 086f90ca9a..5ec39ce378 100644
--- a/store/localstore/mvcc_test.go
+++ b/store/localstore/mvcc_test.go
@@ -165,14 +165,14 @@ func (t *testMvccSuite) TestSnapshotGet(c *C) {
 	c.Assert(err, IsNil)
 	tx.Commit()
 
+	lastVer, err := globalVersionProvider.CurrentVersion()
+	c.Assert(err, IsNil)
 	// Modify
 	tx, _ = t.s.Begin()
 	err = tx.Set(encodeInt(1), []byte("new"))
 	c.Assert(err, IsNil)
 	err = tx.Commit()
 	c.Assert(err, IsNil)
-	v, err := tx.CommittedVersion()
-	c.Assert(err, IsNil)
 	testKey := encodeTestDataKey(1)
 
 	snapshot, err := t.s.GetSnapshot(kv.MaxVersion)
@@ -182,7 +182,7 @@ func (t *testMvccSuite) TestSnapshotGet(c *C) {
 	c.Assert(string(b), Equals, "new")
 
 	// Get last version
-	lastVerSnapshot, err := t.s.GetSnapshot(kv.NewVersion(v.Ver - 1))
+	lastVerSnapshot, err := t.s.GetSnapshot(lastVer)
 	c.Assert(err, IsNil)
 	b, err = lastVerSnapshot.Get(testKey)
 	c.Assert(err, IsNil)
@@ -230,7 +230,7 @@ func (t *testMvccSuite) TestMvccSeek(c *C) {
 	c.Assert(err, IsNil)
 	err = txn.Commit()
 	c.Assert(err, IsNil)
-	v1, err := txn.CommittedVersion()
+	v1, err := globalVersionProvider.CurrentVersion()
 	c.Assert(err, IsNil)
 
 	txn, err = t.s.Begin()
@@ -239,7 +239,7 @@ func (t *testMvccSuite) TestMvccSeek(c *C) {
 	c.Assert(err, IsNil)
 	err = txn.Commit()
 	c.Assert(err, IsNil)
-	v2, err := txn.CommittedVersion()
+	v2, err := globalVersionProvider.CurrentVersion()
 	c.Assert(err, IsNil)
 
 	s = t.getSnapshot(c, v2)
diff --git a/store/localstore/txn.go b/store/localstore/txn.go
index 44092f2d57..dc87e651b9 100644
--- a/store/localstore/txn.go
+++ b/store/localstore/txn.go
@@ -142,14 +142,6 @@ func (txn *dbTxn) Commit() error {
 	return errors.Trace(txn.doCommit())
 }
 
-func (txn *dbTxn) CommittedVersion() (kv.Version, error) {
-	// Check if this transaction is not committed.
-	if txn.version.Cmp(kv.MinVersion) == 0 {
-		return kv.MinVersion, kv.ErrNotCommitted
-	}
-	return txn.version, nil
-}
-
 func (txn *dbTxn) close() error {
 	txn.UnionStore.Release()
 	txn.snapshotVals = nil