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@@ -99,3 +99,8 @@ using other means such as firewalling.
Note that when the block chain tip changes, a reorganisation may occur
and just the tip will be notified. It is up to the subscriber to
retrieve the chain from the last known block to the new tip.
+
+There are several possibilities that ZMQ notification can get lost
+during transmission depending on the communication type your are
+using. Bitcoind appends an up-counting sequence number to each
+notification which allows listeners to detect lost notifications.