+What's new in Redis 2.4.13
+UPGRADE URGENCY: high for all the users of the KEYS command, otherwise low.
+* [BUGFIX] Fix for KEYS command: if the DB contains keys with expires the KEYS
+ command may return the wrong output, having duplicated or missing
+ keys. See issue #487 and #488 on github for details.
What's new in Redis 2.4.12