Confluent platform incompatibility

[fedefernandez]

Hi!

I'm having some binary incompatibilities with the release of the latest modules.

• fs2-kafka depends on kafka-clients 3.4.0
• fs2-kafka-vulcan depends on kafka-avro-serializer 7.3.3

Given the Supported Versions and Interoperability for Confluent Platform, should fs2-kafka-vulcan dependency being upgraded to version 7.4.0?

Confluent Platform	Apache Kafka®	Release Date	Standard End of Support	Platinum End of Support
7.4.x	3.4.x	May 3, 2023	May 3, 2025	May 3, 2026
7.3.x	3.3.x	November 4, 2022	November 4, 2024	November 4, 2025

Thanks!

[OneCricketeer]

What types of errors are you getting? The Avro serializer hasn't had a breaking change in the client library, to my knowledge

[fedefernandez]

@OneCricketeer oh, it was some time ago, but it was a class not found error if I recall correctly. Sorry for not saving the output, but after seeing the compatibility table I thought it will be a good practice to stick to that.

[OneCricketeer]

Confluent's documentation is more about support / version mapping, rather than "binary compatibility" of those versions. Until stated otherwise, Kafka and Schema Registry clients clients have largely been forwards/backwards since at least Kafka 0.10.2 and Confluent Platform 5.x, I think, whenever Protobuf/JSONSchema were introduced into the Registry server API