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NATS and Kafka offer different semantics.

By default, NATS offers non durable messages and different delivery options. I believe you could get durable messages, but last time I read up on this, it required running extra features or infrastructure to support this.

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You now get durability on whatever subjects you want via NATS Jetstream: https://docs.nats.io/nats-concepts/jetstream

No additional infrastructure, just enable it on the nodes you want persistence on and create a stream. Publishers don't even have to change, consumers have a great api with lots of options

Oh that’s pretty cool, I wasn’t aware of that! Nice to that functionality added!

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