diff --git a/HISTORY.md b/HISTORY.md
index b0299fe8d..b2791bee1 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,5 +1,5 @@
 # Rocksdb Change Log
-## Unreleased
+## 6.4.6 (10/16/2019)
 ### Bug Fixes
 * Fix a bug when partitioned filters and prefix search are used in conjunction, ::SeekForPrev could return invalid for an existing prefix. ::SeekForPrev might be called by the user, or internally on ::Prev, or within ::Seek if the return value involves Delete or a Merge operand.
 
diff --git a/include/rocksdb/version.h b/include/rocksdb/version.h
index 81dd0ecfe..582e44075 100644
--- a/include/rocksdb/version.h
+++ b/include/rocksdb/version.h
@@ -6,7 +6,7 @@
 
 #define ROCKSDB_MAJOR 6
 #define ROCKSDB_MINOR 4
-#define ROCKSDB_PATCH 5
+#define ROCKSDB_PATCH 6
 
 // Do not use these. We made the mistake of declaring macros starting with
 // double underscore. Now we have to live with our choice. We'll deprecate these