Added to CHANGES

Author: barshaul

CHANGES

@@ -19,6 +19,8 @@
     * Fix reusing the old nodes' connections when cluster topology refresh is being done
     * Fix RedisCluster to immediately raise AuthenticationError without a retry
     * ClusterPipeline Doesn't Handle ConnectionError for Dead Hosts (#2225)
+    * Failover handling improvements for RedisCluster and Async RedisCluster (#2377)
+    * Fixed "cannot pickle '_thread.lock' object" bug (#2354, #2297)
 
 * 4.1.3 (Feb 8, 2022)
     * Fix flushdb and flushall (#1926)