Kafka 4.0 Kills ZooKeeper: Why Data Engineers Need to Rethink Their Architecture

Kafka 4.0 eliminates ZooKeeper in favor of KRaft, making all legacy setups obsolete and requiring data engineers to redesign their infrastructure. Understanding the new architecture alongside real-time ingestion, producer-consumer decoupling, and change data capture patterns is critical to avoiding costly production failures and ensuring your pipelines remain competitive in 2026.