CHANGELOG.md in mock_redis-0.6.5 vs CHANGELOG.md in mock_redis-0.6.6

@@ -1,4 +1,8 @@
+### 0.6.6
+* Avoid mutation of @data from external reference
+* Fix sorted set (e.g. `zadd`) with multiple score/member pairs
+
 ### 0.6.5
 * Fix `zrevrange` to return an empty array on invalid range
 * Fix `srandmember` spec on redis-rb 3.0.3
 * Stringify keys in expiration-related commands