diff --git a/db/c.cc b/db/c.cc
index 2bda00c41..87e08f806 100644
--- a/db/c.cc
+++ b/db/c.cc
@@ -1777,38 +1777,18 @@ void rocksdb_writebatch_wi_rollback_to_save_point(rocksdb_writebatch_wi_t* b,
 rocksdb_iterator_t* rocksdb_writebatch_wi_create_iterator_with_base(
     rocksdb_writebatch_wi_t* wbwi,
     rocksdb_iterator_t* base_iterator) {
-  rocksdb_readoptions_t options;
-  return rocksdb_writebatch_wi_create_iterator_with_base_and_readoptions(
-      &options, wbwi, base_iterator);
-}
-
-rocksdb_iterator_t* rocksdb_writebatch_wi_create_iterator_with_base_cf(
-    rocksdb_writebatch_wi_t* wbwi, rocksdb_iterator_t* base_iterator,
-    rocksdb_column_family_handle_t* column_family) {
-  rocksdb_readoptions_t options;
-  return rocksdb_writebatch_wi_create_iterator_with_base_cf_and_readoptions(
-      &options, wbwi, base_iterator, column_family);
-}
-
-rocksdb_iterator_t*
-rocksdb_writebatch_wi_create_iterator_with_base_and_readoptions(
-    const rocksdb_readoptions_t* options, rocksdb_writebatch_wi_t* wbwi,
-    rocksdb_iterator_t* base_iterator) {
   rocksdb_iterator_t* result = new rocksdb_iterator_t;
-  result->rep =
-      wbwi->rep->NewIteratorWithBase(options->rep, base_iterator->rep);
+  result->rep = wbwi->rep->NewIteratorWithBase(base_iterator->rep);
   delete base_iterator;
   return result;
 }
 
-rocksdb_iterator_t*
-rocksdb_writebatch_wi_create_iterator_with_base_cf_and_readoptions(
-    const rocksdb_readoptions_t* options, rocksdb_writebatch_wi_t* wbwi,
+rocksdb_iterator_t* rocksdb_writebatch_wi_create_iterator_with_base_cf(
+    rocksdb_writebatch_wi_t* wbwi,
     rocksdb_iterator_t* base_iterator,
     rocksdb_column_family_handle_t* column_family) {
   rocksdb_iterator_t* result = new rocksdb_iterator_t;
-  result->rep = wbwi->rep->NewIteratorWithBase(options->rep, column_family->rep,
-                                               base_iterator->rep);
+  result->rep = wbwi->rep->NewIteratorWithBase(column_family->rep, base_iterator->rep);
   delete base_iterator;
   return result;
 }
diff --git a/db/c_test.c b/db/c_test.c
index 76539e4b4..4f1c0da9f 100644
--- a/db/c_test.c
+++ b/db/c_test.c
@@ -917,9 +917,7 @@ int main(int argc, char** argv) {
     rocksdb_writebatch_wi_t* wbi = rocksdb_writebatch_wi_create(0, 1);
     rocksdb_writebatch_wi_put(wbi, "bar", 3, "b", 1);
     rocksdb_writebatch_wi_delete(wbi, "foo", 3);
-    rocksdb_iterator_t* iter =
-        rocksdb_writebatch_wi_create_iterator_with_base_and_readoptions(
-            roptions, wbi, base_iter);
+    rocksdb_iterator_t* iter = rocksdb_writebatch_wi_create_iterator_with_base(wbi, base_iter);
     CheckCondition(!rocksdb_iter_valid(iter));
     rocksdb_iter_seek_to_first(iter);
     CheckCondition(rocksdb_iter_valid(iter));
@@ -1529,7 +1527,7 @@ int main(int argc, char** argv) {
     const rocksdb_snapshot_t* snapshot;
     snapshot = rocksdb_transactiondb_create_snapshot(txn_db);
     rocksdb_readoptions_set_snapshot(roptions, snapshot);
-
+  
     rocksdb_transactiondb_put(txn_db, woptions, "foo", 3, "hey", 3,  &err);
     CheckNoError(err);
 
@@ -1645,7 +1643,6 @@ int main(int argc, char** argv) {
     // Check iterator with column family
     rocksdb_transaction_put_cf(txn, cfh1, "key1_cf", 7, "val1_cf", 7, &err);
     CheckNoError(err);
-    rocksdb_readoptions_set_iterate_upper_bound(roptions, "key2", 4);
     rocksdb_iterator_t* iter =
         rocksdb_transaction_create_iterator_cf(txn, roptions, cfh1);
     CheckCondition(!rocksdb_iter_valid(iter));
diff --git a/include/rocksdb/c.h b/include/rocksdb/c.h
index e52c3fa8c..cf46054aa 100644
--- a/include/rocksdb/c.h
+++ b/include/rocksdb/c.h
@@ -636,14 +636,7 @@ extern ROCKSDB_LIBRARY_API rocksdb_iterator_t* rocksdb_writebatch_wi_create_iter
     rocksdb_writebatch_wi_t* wbwi,
     rocksdb_iterator_t* base_iterator,
     rocksdb_column_family_handle_t* cf);
-extern ROCKSDB_LIBRARY_API rocksdb_iterator_t*
-rocksdb_writebatch_wi_create_iterator_with_base_and_readoptions(
-    const rocksdb_readoptions_t* options, rocksdb_writebatch_wi_t* wbwi,
-    rocksdb_iterator_t* base_iterator);
-extern ROCKSDB_LIBRARY_API rocksdb_iterator_t*
-rocksdb_writebatch_wi_create_iterator_with_base_cf_and_readoptions(
-    const rocksdb_readoptions_t* options, rocksdb_writebatch_wi_t* wbwi,
-    rocksdb_iterator_t* base_iterator, rocksdb_column_family_handle_t* cf);
+
 
 /* Block based table options */
 
diff --git a/include/rocksdb/iterator.h b/include/rocksdb/iterator.h
index e1811bd26..e99b434a0 100644
--- a/include/rocksdb/iterator.h
+++ b/include/rocksdb/iterator.h
@@ -54,8 +54,6 @@ class Iterator : public Cleanable {
   // Position at the last key in the source that at or before target.
   // The iterator is Valid() after this call iff the source contains
   // an entry that comes at or before target.
-  // Note: If iterate_upper_bound is set and SeekForPrev is called with target
-  // greater or equal to iterate_upper_bound, the behavior is undefined
   virtual void SeekForPrev(const Slice& target) = 0;
 
   // Moves to the next entry in the source.  After this call, Valid() is
diff --git a/include/rocksdb/utilities/write_batch_with_index.h b/include/rocksdb/utilities/write_batch_with_index.h
index 9c912d8f1..d25b9513b 100644
--- a/include/rocksdb/utilities/write_batch_with_index.h
+++ b/include/rocksdb/utilities/write_batch_with_index.h
@@ -161,15 +161,9 @@ class WriteBatchWithIndex : public WriteBatchBase {
   // key() and value() of the iterator. This invalidation happens even before
   // the write batch update finishes. The state may recover after Next() is
   // called.
-  Iterator* NewIteratorWithBase(const ReadOptions& read_options,
-                                ColumnFamilyHandle* column_family,
-                                Iterator* base_iterator);
-
   Iterator* NewIteratorWithBase(ColumnFamilyHandle* column_family,
                                 Iterator* base_iterator);
   // default column family
-  Iterator* NewIteratorWithBase(const ReadOptions& read_options,
-                                Iterator* base_iterator);
   Iterator* NewIteratorWithBase(Iterator* base_iterator);
 
   // Similar to DB::Get() but will only read the key from this batch.
diff --git a/java/rocksjni/write_batch_with_index.cc b/java/rocksjni/write_batch_with_index.cc
index 56e438a99..12ca299a9 100644
--- a/java/rocksjni/write_batch_with_index.cc
+++ b/java/rocksjni/write_batch_with_index.cc
@@ -457,14 +457,11 @@ jlong Java_org_rocksdb_WriteBatchWithIndex_iteratorWithBase(JNIEnv* /*env*/,
                                                             jobject /*jobj*/,
                                                             jlong jwbwi_handle,
                                                             jlong jcf_handle,
-                                                            jlong jbi_handle,
-                                                            jlong jreadopt_handle) {
+                                                            jlong jbi_handle) {
   auto* wbwi = reinterpret_cast<rocksdb::WriteBatchWithIndex*>(jwbwi_handle);
   auto* cf_handle = reinterpret_cast<rocksdb::ColumnFamilyHandle*>(jcf_handle);
   auto* base_iterator = reinterpret_cast<rocksdb::Iterator*>(jbi_handle);
-  auto* readopt = reinterpret_cast<rocksdb::ReadOptions*>(jreadopt_handle);
-  auto* iterator =
-      wbwi->NewIteratorWithBase(*readopt, cf_handle, base_iterator);
+  auto* iterator = wbwi->NewIteratorWithBase(cf_handle, base_iterator);
   return reinterpret_cast<jlong>(iterator);
 }
 
diff --git a/java/src/main/java/org/rocksdb/WriteBatchWithIndex.java b/java/src/main/java/org/rocksdb/WriteBatchWithIndex.java
index e94a71205..2c0350837 100644
--- a/java/src/main/java/org/rocksdb/WriteBatchWithIndex.java
+++ b/java/src/main/java/org/rocksdb/WriteBatchWithIndex.java
@@ -14,9 +14,8 @@ package org.rocksdb;
  *
  * A user can call {@link org.rocksdb.WriteBatchWithIndex#newIterator()} to
  * create an iterator over the write batch or
- * {@link org.rocksdb.WriteBatchWithIndex#newIteratorWithBase(org.rocksdb.ReadOptions, org.rocksdb.RocksIterator)}
- * to get an iterator for the database with Read-Your-Own-Writes like
- * capability
+ * {@link org.rocksdb.WriteBatchWithIndex#newIteratorWithBase(org.rocksdb.RocksIterator)}
+ * to get an iterator for the database with Read-Your-Own-Writes like capability
  */
 public class WriteBatchWithIndex extends AbstractWriteBatch {
   /**
@@ -110,34 +109,6 @@ public class WriteBatchWithIndex extends AbstractWriteBatch {
     return new WBWIRocksIterator(this, iterator0(nativeHandle_));
   }
 
-  /**
-   * Provides Read-Your-Own-Writes like functionality by
-   * creating a new Iterator that will use {@link org.rocksdb.WBWIRocksIterator}
-   * as a delta and baseIterator as a base
-   *
-   * Updating write batch with the current key of the iterator is not safe.
-   * We strongly recommand users not to do it. It will invalidate the current
-   * key() and value() of the iterator. This invalidation happens even before
-   * the write batch update finishes. The state may recover after Next() is
-   * called.
-   *
-   * @param read_opts The read options to use
-   * @param columnFamilyHandle The column family to iterate over
-   * @param baseIterator The base iterator,
-   *   e.g. {@link org.rocksdb.RocksDB#newIterator()}
-   * @return An iterator which shows a view comprised of both the database
-   * point-in-time from baseIterator and modifications made in this write batch.
-   */
-  public RocksIterator newIteratorWithBase(final ReadOptions read_opts,
-      final ColumnFamilyHandle columnFamilyHandle, final RocksIterator baseIterator) {
-    RocksIterator iterator = new RocksIterator(baseIterator.parent_,
-        iteratorWithBase(nativeHandle_, columnFamilyHandle.nativeHandle_,
-            baseIterator.nativeHandle_, read_opts.nativeHandle_));
-    //when the iterator is deleted it will also delete the baseIterator
-    baseIterator.disOwnNativeHandle();
-    return iterator;
-  }
-
   /**
    * Provides Read-Your-Own-Writes like functionality by
    * creating a new Iterator that will use {@link org.rocksdb.WBWIRocksIterator}
@@ -158,26 +129,14 @@ public class WriteBatchWithIndex extends AbstractWriteBatch {
   public RocksIterator newIteratorWithBase(
       final ColumnFamilyHandle columnFamilyHandle,
       final RocksIterator baseIterator) {
-    ReadOptions read_opts = new ReadOptions();
-    return newIteratorWithBase(read_opts, columnFamilyHandle, baseIterator);
-  }
-
-  /**
-   * Provides Read-Your-Own-Writes like functionality by
-   * creating a new Iterator that will use {@link org.rocksdb.WBWIRocksIterator}
-   * as a delta and baseIterator as a base. Operates on the default column
-   * family.
-   *
-   * @param read_opts The read options to use
-   * @param baseIterator The base iterator,
-   *   e.g. {@link org.rocksdb.RocksDB#newIterator()}
-   * @return An iterator which shows a view comprised of both the database
-   * point-in-timefrom baseIterator and modifications made in this write batch.
-   */
-  public RocksIterator newIteratorWithBase(
-      final ReadOptions read_opts, final RocksIterator baseIterator) {
-    return newIteratorWithBase(
-        read_opts, baseIterator.parent_.getDefaultColumnFamily(), baseIterator);
+    RocksIterator iterator = new RocksIterator(
+        baseIterator.parent_,
+        iteratorWithBase(nativeHandle_,
+                columnFamilyHandle.nativeHandle_,
+                baseIterator.nativeHandle_));
+    //when the iterator is deleted it will also delete the baseIterator
+    baseIterator.disOwnNativeHandle();
+    return iterator;
   }
 
   /**
@@ -192,8 +151,8 @@ public class WriteBatchWithIndex extends AbstractWriteBatch {
    * point-in-timefrom baseIterator and modifications made in this write batch.
    */
   public RocksIterator newIteratorWithBase(final RocksIterator baseIterator) {
-    ReadOptions read_opts = new ReadOptions();
-    return newIteratorWithBase(read_opts, baseIterator);
+    return newIteratorWithBase(baseIterator.parent_.getDefaultColumnFamily(),
+        baseIterator);
   }
 
   /**
@@ -336,8 +295,8 @@ public class WriteBatchWithIndex extends AbstractWriteBatch {
       final boolean overwriteKey);
   private native long iterator0(final long handle);
   private native long iterator1(final long handle, final long cfHandle);
-  private native long iteratorWithBase(final long handle, final long baseIteratorHandle,
-      final long cfHandle, final long jreadopt_handle);
+  private native long iteratorWithBase(final long handle,
+      final long baseIteratorHandle, final long cfHandle);
   private native byte[] getFromBatch(final long handle, final long optHandle,
       final byte[] key, final int keyLen);
   private native byte[] getFromBatch(final long handle, final long optHandle,
diff --git a/java/src/test/java/org/rocksdb/WriteBatchWithIndexTest.java b/java/src/test/java/org/rocksdb/WriteBatchWithIndexTest.java
index 3a872c412..061af2b8f 100644
--- a/java/src/test/java/org/rocksdb/WriteBatchWithIndexTest.java
+++ b/java/src/test/java/org/rocksdb/WriteBatchWithIndexTest.java
@@ -47,6 +47,7 @@ public class WriteBatchWithIndexTest {
       try (final WriteBatchWithIndex wbwi = new WriteBatchWithIndex(true);
            final RocksIterator base = db.newIterator();
            final RocksIterator it = wbwi.newIteratorWithBase(base)) {
+
         it.seek(k1);
         assertThat(it.isValid()).isTrue();
         assertThat(it.key()).isEqualTo(k1);
@@ -420,8 +421,8 @@ public class WriteBatchWithIndexTest {
       final ReadOptions readOptions, final WriteBatchWithIndex wbwi,
       final String skey) {
     final byte[] key = skey.getBytes();
-    try (final RocksIterator baseIterator = db.newIterator(readOptions);
-         final RocksIterator iterator = wbwi.newIteratorWithBase(baseIterator)) {
+    try(final RocksIterator baseIterator = db.newIterator(readOptions);
+        final RocksIterator iterator = wbwi.newIteratorWithBase(baseIterator)) {
       iterator.seek(key);
 
       // Arrays.equals(key, iterator.key()) ensures an exact match in Rocks,
diff --git a/utilities/transactions/optimistic_transaction_test.cc b/utilities/transactions/optimistic_transaction_test.cc
index 12dd8377a..2c196d43b 100644
--- a/utilities/transactions/optimistic_transaction_test.cc
+++ b/utilities/transactions/optimistic_transaction_test.cc
@@ -852,51 +852,6 @@ TEST_F(OptimisticTransactionTest, UntrackedWrites) {
   delete txn;
 }
 
-TEST_F(OptimisticTransactionTest, IteratorUpperBoundTest) {
-  WriteOptions write_options;
-  auto txn = unique_ptr<Transaction>(txn_db->BeginTransaction(write_options));
-
-  string key1 = "a1";
-  string key2 = "a3";
-  string key3 = "b1";
-  string val = "123";
-  txn->Put(key1, val);
-  txn->Put(key2, val);
-
-  Status s = txn->Commit();
-  ASSERT_OK(s);
-  txn = unique_ptr<Transaction>(txn_db->BeginTransaction(write_options));
-  txn->Put(key3, val);
-
-  string ubKey("a2");
-  Slice upperbound(ubKey);
-  ReadOptions read_options;
-  read_options.iterate_upper_bound = &upperbound;
-  auto it = unique_ptr<Iterator>(txn->GetIterator(read_options));
-  for (it->SeekToFirst(); it->Valid(); it->Next()) {
-    EXPECT_LT(it->key().ToString(), ubKey);
-  }
-  EXPECT_GE(it->key().ToString(), ubKey);
-  int key_count = 0;
-  for (it->SeekToFirst(); it->Valid(); it->Next()) {
-    EXPECT_LT(it->key().ToString(), ubKey);
-    key_count++;
-  }
-  ASSERT_EQ(key_count, 1);
-  // Test Seek to a key equal or over upper bound
-  it->Seek("a2");
-  ASSERT_FALSE(it->Valid());
-  it->Seek("a3");
-  ASSERT_FALSE(it->Valid());
-  it->Seek("a1");
-  ASSERT_TRUE(it->Valid());
-  it.reset();
-
-  s = txn->Commit();
-  ASSERT_OK(s);
-  txn.reset();
-}
-
 TEST_F(OptimisticTransactionTest, IteratorTest) {
   WriteOptions write_options;
   ReadOptions read_options, snapshot_read_options;
diff --git a/utilities/transactions/transaction_base.cc b/utilities/transactions/transaction_base.cc
index 049fc299c..ac459a256 100644
--- a/utilities/transactions/transaction_base.cc
+++ b/utilities/transactions/transaction_base.cc
@@ -178,7 +178,7 @@ Status TransactionBaseImpl::RollbackToSavePoint() {
     return Status::NotFound();
   }
 }
-
+  
 Status TransactionBaseImpl::PopSavePoint() {
   if (save_points_ == nullptr ||
       save_points_->empty()) {
@@ -187,7 +187,7 @@ Status TransactionBaseImpl::PopSavePoint() {
     return Status::NotFound();
   }
 
-  assert(!save_points_->empty());
+  assert(!save_points_->empty()); 
   save_points_->pop();
   return write_batch_.PopSavePoint();
 }
@@ -291,7 +291,7 @@ Iterator* TransactionBaseImpl::GetIterator(const ReadOptions& read_options) {
   Iterator* db_iter = db_->NewIterator(read_options);
   assert(db_iter);
 
-  return write_batch_.NewIteratorWithBase(read_options, db_iter);
+  return write_batch_.NewIteratorWithBase(db_iter);
 }
 
 Iterator* TransactionBaseImpl::GetIterator(const ReadOptions& read_options,
@@ -299,7 +299,7 @@ Iterator* TransactionBaseImpl::GetIterator(const ReadOptions& read_options,
   Iterator* db_iter = db_->NewIterator(read_options, column_family);
   assert(db_iter);
 
-  return write_batch_.NewIteratorWithBase(read_options, column_family, db_iter);
+  return write_batch_.NewIteratorWithBase(column_family, db_iter);
 }
 
 Status TransactionBaseImpl::Put(ColumnFamilyHandle* column_family,
diff --git a/utilities/transactions/write_prepared_txn.cc b/utilities/transactions/write_prepared_txn.cc
index 112ab1829..cb20d1439 100644
--- a/utilities/transactions/write_prepared_txn.cc
+++ b/utilities/transactions/write_prepared_txn.cc
@@ -62,7 +62,7 @@ Iterator* WritePreparedTxn::GetIterator(const ReadOptions& options) {
   Iterator* db_iter = wpt_db_->NewIterator(options);
   assert(db_iter);
 
-  return write_batch_.NewIteratorWithBase(options, db_iter);
+  return write_batch_.NewIteratorWithBase(db_iter);
 }
 
 Iterator* WritePreparedTxn::GetIterator(const ReadOptions& options,
@@ -71,7 +71,7 @@ Iterator* WritePreparedTxn::GetIterator(const ReadOptions& options,
   Iterator* db_iter = wpt_db_->NewIterator(options, column_family);
   assert(db_iter);
 
-  return write_batch_.NewIteratorWithBase(options, column_family, db_iter);
+  return write_batch_.NewIteratorWithBase(column_family, db_iter);
 }
 
 Status WritePreparedTxn::PrepareInternal() {
diff --git a/utilities/transactions/write_unprepared_txn.cc b/utilities/transactions/write_unprepared_txn.cc
index 4da4e4987..d4efe8ff9 100644
--- a/utilities/transactions/write_unprepared_txn.cc
+++ b/utilities/transactions/write_unprepared_txn.cc
@@ -506,7 +506,7 @@ Iterator* WriteUnpreparedTxn::GetIterator(const ReadOptions& options,
   Iterator* db_iter = wupt_db_->NewIterator(options, column_family, this);
   assert(db_iter);
 
-  return write_batch_.NewIteratorWithBase(options, column_family, db_iter);
+  return write_batch_.NewIteratorWithBase(column_family, db_iter);
 }
 
 const std::map<SequenceNumber, size_t>&
diff --git a/utilities/write_batch_with_index/write_batch_with_index.cc b/utilities/write_batch_with_index/write_batch_with_index.cc
index 175cb2a98..2202d6baf 100644
--- a/utilities/write_batch_with_index/write_batch_with_index.cc
+++ b/utilities/write_batch_with_index/write_batch_with_index.cc
@@ -32,13 +32,11 @@ namespace rocksdb {
 // * equal_keys_ <=> base_iterator == delta_iterator
 class BaseDeltaIterator : public Iterator {
  public:
-  BaseDeltaIterator(const ReadOptions& read_options, Iterator* base_iterator,
-                    WBWIIterator* delta_iterator, const Comparator* comparator)
-      : read_options_(read_options),
-        forward_(true),
+  BaseDeltaIterator(Iterator* base_iterator, WBWIIterator* delta_iterator,
+                    const Comparator* comparator)
+      : forward_(true),
         current_at_base_(true),
         equal_keys_(false),
-        current_over_upper_bound_(false),
         status_(Status::OK()),
         base_iterator_(base_iterator),
         delta_iterator_(delta_iterator),
@@ -47,7 +45,7 @@ class BaseDeltaIterator : public Iterator {
   virtual ~BaseDeltaIterator() {}
 
   bool Valid() const override {
-    return BaseDeltaValid() ? !current_over_upper_bound_ : false;
+    return current_at_base_ ? BaseValid() : DeltaValid();
   }
 
   void SeekToFirst() override {
@@ -218,15 +216,9 @@ class BaseDeltaIterator : public Iterator {
     }
     // equal_keys_ <=> compare == 0
     assert((equal_keys_ || compare != 0) && (!equal_keys_ || compare == 0));
-
 #endif
   }
 
-  bool IsOverUpperBound() {
-    return read_options_.iterate_upper_bound != nullptr &&
-           comparator_->Compare(key(), *read_options_.iterate_upper_bound) >= 0;
-  }
-
   void Advance() {
     if (equal_keys_) {
       assert(BaseValid() && DeltaValid());
@@ -260,9 +252,6 @@ class BaseDeltaIterator : public Iterator {
   }
   bool BaseValid() const { return base_iterator_->Valid(); }
   bool DeltaValid() const { return delta_iterator_->Valid(); }
-  bool BaseDeltaValid() const {
-    return (current_at_base_ ? BaseValid() : DeltaValid());
-  }
   void UpdateCurrent() {
 // Suppress false positive clang analyzer warnings.
 #ifndef __clang_analyzer__
@@ -275,37 +264,32 @@ class BaseDeltaIterator : public Iterator {
       } else if (!delta_iterator_->status().ok()) {
         // Expose the error status and stop.
         current_at_base_ = false;
-        break;
+        return;
       }
       equal_keys_ = false;
       if (!BaseValid()) {
         if (!base_iterator_->status().ok()) {
           // Expose the error status and stop.
           current_at_base_ = true;
-          break;
+          return;
         }
 
         // Base has finished.
         if (!DeltaValid()) {
           // Finished
-          break;
+          return;
         }
         if (delta_entry.type == kDeleteRecord ||
             delta_entry.type == kSingleDeleteRecord) {
           AdvanceDelta();
-          // If the new Delta is valid and >= iterate_upper_bound, stop
-          current_over_upper_bound_ = DeltaValid() && IsOverUpperBound();
-          if (current_over_upper_bound_) {
-            return;
-          }
         } else {
           current_at_base_ = false;
-          break;
+          return;
         }
       } else if (!DeltaValid()) {
         // Delta has finished.
         current_at_base_ = true;
-        break;
+        return;
       } else {
         int compare =
             (forward_ ? 1 : -1) *
@@ -317,7 +301,7 @@ class BaseDeltaIterator : public Iterator {
           if (delta_entry.type != kDeleteRecord &&
               delta_entry.type != kSingleDeleteRecord) {
             current_at_base_ = false;
-            break;
+            return;
           }
           // Delta is less advanced and is delete.
           AdvanceDelta();
@@ -326,20 +310,18 @@ class BaseDeltaIterator : public Iterator {
           }
         } else {
           current_at_base_ = true;
-          break;
+          return;
         }
       }
     }
 
-    current_over_upper_bound_ = BaseDeltaValid() && IsOverUpperBound();
+    AssertInvariants();
 #endif  // __clang_analyzer__
   }
 
-  ReadOptions read_options_;
   bool forward_;
   bool current_at_base_;
   bool equal_keys_;
-  bool current_over_upper_bound_;
   Status status_;
   std::unique_ptr<Iterator> base_iterator_;
   std::unique_ptr<WBWIIterator> delta_iterator_;
@@ -660,39 +642,25 @@ WBWIIterator* WriteBatchWithIndex::NewIterator(
 }
 
 Iterator* WriteBatchWithIndex::NewIteratorWithBase(
-    const ReadOptions& read_options, ColumnFamilyHandle* column_family,
-    Iterator* base_iterator) {
+    ColumnFamilyHandle* column_family, Iterator* base_iterator) {
   if (rep->overwrite_key == false) {
     assert(false);
     return nullptr;
   }
-  return new BaseDeltaIterator(read_options, base_iterator,
-                               NewIterator(column_family),
+  return new BaseDeltaIterator(base_iterator, NewIterator(column_family),
                                GetColumnFamilyUserComparator(column_family));
 }
 
-Iterator* WriteBatchWithIndex::NewIteratorWithBase(
-    ColumnFamilyHandle* column_family, Iterator* base_iterator) {
-  ReadOptions read_options;
-  return NewIteratorWithBase(read_options, column_family, base_iterator);
-}
-
-Iterator* WriteBatchWithIndex::NewIteratorWithBase(
-    const ReadOptions& read_options, Iterator* base_iterator) {
+Iterator* WriteBatchWithIndex::NewIteratorWithBase(Iterator* base_iterator) {
   if (rep->overwrite_key == false) {
     assert(false);
     return nullptr;
   }
   // default column family's comparator
-  return new BaseDeltaIterator(read_options, base_iterator, NewIterator(),
+  return new BaseDeltaIterator(base_iterator, NewIterator(),
                                rep->comparator.default_comparator());
 }
 
-Iterator* WriteBatchWithIndex::NewIteratorWithBase(Iterator* base_iterator) {
-  ReadOptions read_options;
-  return NewIteratorWithBase(read_options, base_iterator);
-}
-
 Status WriteBatchWithIndex::Put(ColumnFamilyHandle* column_family,
                                 const Slice& key, const Slice& value) {
   rep->SetLastEntryOffset();
diff --git a/utilities/write_batch_with_index/write_batch_with_index_test.cc b/utilities/write_batch_with_index/write_batch_with_index_test.cc
index 94933295c..d477968ca 100644
--- a/utilities/write_batch_with_index/write_batch_with_index_test.cc
+++ b/utilities/write_batch_with_index/write_batch_with_index_test.cc
@@ -9,12 +9,11 @@
 
 #ifndef ROCKSDB_LITE
 
-#include "rocksdb/utilities/write_batch_with_index.h"
-#include <map>
 #include <memory>
+#include <map>
 #include "db/column_family.h"
 #include "port/stack_trace.h"
-#include "rocksdb/comparator.h"
+#include "rocksdb/utilities/write_batch_with_index.h"
 #include "util/random.h"
 #include "util/string_util.h"
 #include "util/testharness.h"
@@ -507,19 +506,7 @@ typedef std::map<std::string, std::string> KVMap;
 class KVIter : public Iterator {
  public:
   explicit KVIter(const KVMap* map) : map_(map), iter_(map_->end()) {}
-  explicit KVIter(const KVMap* map, const Slice* iterate_upper_bound)
-      : map_(map),
-        iter_(map_->end()),
-        iterate_upper_bound_(iterate_upper_bound) {}
-  virtual bool Valid() const {
-    if (iterate_upper_bound_ == nullptr) {
-      return iter_ != map_->end();
-    } else {
-      if (iter_ == map_->end()) return false;
-      const Comparator* cmp = BytewiseComparator();
-      return cmp->Compare(key(), *iterate_upper_bound_) < 0;
-    }
-  }
+  virtual bool Valid() const { return iter_ != map_->end(); }
   virtual void SeekToFirst() { iter_ = map_->begin(); }
   virtual void SeekToLast() {
     if (map_->empty()) {
@@ -549,7 +536,6 @@ class KVIter : public Iterator {
  private:
   const KVMap* const map_;
   KVMap::const_iterator iter_;
-  const Slice* iterate_upper_bound_ = nullptr;
 };
 
 void AssertIter(Iterator* iter, const std::string& key,
@@ -567,7 +553,6 @@ void AssertItersEqual(Iterator* iter1, Iterator* iter2) {
     ASSERT_EQ(iter1->value().ToString(), iter2->value().ToString());
   }
 }
-
 }  // namespace
 
 TEST_F(WriteBatchWithIndexTest, TestRandomIteraratorWithBase) {
@@ -628,14 +613,9 @@ TEST_F(WriteBatchWithIndexTest, TestRandomIteraratorWithBase) {
       }
     }
 
-    auto rnd_key_idx = rnd.Uniform(static_cast<int>(source_strings.size()));
-    Slice random_upper_bound(source_strings[rnd_key_idx]);
-    ReadOptions read_options;
-    read_options.iterate_upper_bound = &random_upper_bound;
     std::unique_ptr<Iterator> iter(
-        batch.NewIteratorWithBase(read_options, &cf1, new KVIter(&map)));
-    std::unique_ptr<Iterator> result_iter(
-        new KVIter(&merged_map, &random_upper_bound));
+        batch.NewIteratorWithBase(&cf1, new KVIter(&map)));
+    std::unique_ptr<Iterator> result_iter(new KVIter(&merged_map));
 
     bool is_valid = false;
     for (int i = 0; i < 128; i++) {
@@ -857,46 +837,6 @@ TEST_F(WriteBatchWithIndexTest, TestIteraratorWithBase) {
     iter->Prev();
     AssertIter(iter.get(), "c", "cc");
   }
-
-  // Test iterate_upper_bound
-  {
-    KVMap empty_map;
-    Slice upper_bound("cd");
-    ReadOptions read_options;
-    read_options.iterate_upper_bound = &upper_bound;
-    std::unique_ptr<Iterator> iter(
-        batch.NewIteratorWithBase(read_options, &cf1, new KVIter(&empty_map)));
-
-    iter->SeekToFirst();
-    AssertIter(iter.get(), "a", "aa");
-    iter->Next();
-    AssertIter(iter.get(), "c", "cc");
-    iter->Next();
-    ASSERT_OK(iter->status());
-    ASSERT_TRUE(!iter->Valid());
-
-    iter->SeekToLast();
-    ASSERT_OK(iter->status());
-    ASSERT_TRUE(!iter->Valid());
-
-    iter->Seek("aa");
-    AssertIter(iter.get(), "c", "cc");
-    iter->Prev();
-    AssertIter(iter.get(), "a", "aa");
-    iter->Next();
-    iter->Next();
-    ASSERT_OK(iter->status());
-    ASSERT_TRUE(!iter->Valid());
-
-    iter->Seek("ca");
-    ASSERT_OK(iter->status());
-    ASSERT_TRUE(!iter->Valid());
-
-    // Seek to outside of upper bound, should not crash
-    iter->Seek("zz");
-    ASSERT_OK(iter->status());
-    ASSERT_TRUE(!iter->Valid());
-  }
 }
 
 TEST_F(WriteBatchWithIndexTest, TestIteraratorWithBaseReverseCmp) {