Connected EventStreams SSE clients will reconnect and not be able to
automatically consume from the exact position in the stream where they left
off. Instead, reconnecting clients will begin consuming from the latest
messages in the stream. This means that connected clients will likely miss
any messages that occurred during the reconnect period. Hopefully this
will be a very small number of messages, as your SSE client should
This switch is scheduled to happen on June 5 2018, at around 17:30 UTC.