https://cwiki.apache.org/confluence/display/KAFKA/KIP-962%3A+Relax+non-null+key+requirement+in+Kafka+Streams
- [VOTE] KIP-962 Relax non-null key requirement in Kafka Str... Florin Akermann
- Re: [VOTE] KIP-962 Relax non-null key requirement in ... Matthias J. Sax
- Re: [VOTE] KIP-962 Relax non-null key requirement... Lucas Brutschy
- Re: [VOTE] KIP-962 Relax non-null key require... Bill Bejeck
- Re: [VOTE] KIP-962 Relax non-null key req... Florin Akermann
