The Kafka Summit brought together around 800 attendees, including committers, users, and enthusiasts, for a day of networking, food, and education. Allen Wang from Netflix shared battle-tested recommendations for running Kafka at scale, while Amy Boyle from New Relic discussed the importance of real-time stream processing at scale. Matthias Sax from Confluent introduced interactive queries in the Streams API for Kafka, providing an additional line of architectural defense against deploying a database instance as part of a microservice. The event also highlighted the growth of the Kafka community and announced upcoming Summits in London and San Francisco. Additionally, KSQL is now in developer preview, Apache Kafka will reach version 1.0 this year, and attendees can download a free copy of "Kafka: The Definitive Guide" online.