Hi everyone, I'd like to start a vote for KIP-799: Align behaviour for producer callbacks with documented behaviour <https://cwiki.apache.org/confluence/display/KAFKA/KIP-799%3A+Align+behaviour+for+producer+callbacks+with+documented+behaviour> .
The KIP proposes a breaking change in the behaviour of producer client callbacks. The breaking change would align the behaviour of callbacks with the documented behaviour for the method, and makes it consistent with similar methods for producer client interceptors. Regards, Séamus.