Let’s assume such a situation:
There is a Java Spring application, that reads messages from Kafka
(Customer group: MyGroupName).

• messages appear on Kafka: msg_1, msg_2, msg_3
• application reads messages: msg_1, msg_2, msg_3 after each sending ack.
• application is turned off/crashes
• new messages appear on Kafka: msg_4, msg_5, msg_6
• application starts running and reconnects to Kafka again in customer group MyGroupName
  (We can see in Kafka UI that Lags:3)
• new messages appear on Kafka: msg_7, msg_8

and then, if I set AUTO_OFFSET_RESET_CONFIG to:

• latest: the application will read messages from msg_4, ..., msg_8
• earliest: the application will read messages from msg_1, ..., msg_8

And my question is: what should be configured to read only messages that appears on Kafka after reconnect? (only msg_7,msg_8)?