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# Rocksdb Change Log
## 6.4.5 (10/1/2019)
### Bug Fixes
-* Revert the feature "Merging iterator to avoid child iterator reseek for some cases (#5286)" since it might cause strong results when reseek happens with a different iterator upper bound.
+* Revert the feature "Merging iterator to avoid child iterator reseek for some cases (#5286)" since it might cause strange results when reseek happens with a different iterator upper bound.
+* Fix a bug in BlockBasedTableIterator that might return incorrect results when reseek happens with a different iterator upper bound.
## 6.4.4 (9/17/2019)
* Fix a bug introduced 6.3 which could cause wrong results in a corner case when prefix bloom filter is used and the iterator is reseeked.