Upgrade urgency SECURITY: This release includes security fixes we recommend you
apply as soon as possible.

Security fixes

Bug fixes

Fix an uncommon crash when using TLS with dual channel replication. (#1173)
Make sure repl_down_since is correctly reset when dual channel replication
fails. (#1149)
Fix a performance regression where a replica does not properly initialize
the database size when loading a snapshot during replication. (#1199)
Make sure the last accessed time is correctly updated when using the TOUCH
command with the CLIENT NO-TOUCH option.
Fix a bug where total_net_repl_output_bytes may report the wrong. (#1486)
Fix a bug where used_memory_scripts may report the wrong value. (#1255)
Fix a bug where server might crash when using active defrag when scripts
are evicted from the script cache. (#1310)
Fix a bug where extra memory would be used when storing strings in the
inline protocol. (#1213)
Fix a bug where the SORT command may throw a cross slot error. (#1182)
Fix a bug where the RANDOMKEY command may omit returning keys in cluster
mode. (#1155)
Send the correct error message when FUNCTION KIlL is used to kill an
ongoing script. (#1171)
Fix a potential memory corruption when databases are emptied, such as
through FLUSHDB, when during active defrag is running. (#1512)

Revert an unintended breaking change when sending an unsubuscribe command
when a client is not subscribed to any channels. (#1265)