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v1.4.0

Release date: 2026-01-06

Highlights

  • Added the Kafka proxy deployment and demo wiring.
  • Rolled out broker StatefulSets with a smoother publish flow.
  • Expanded Kafka API compatibility (Create/DeleteTopics v0-2, ListOffsets v0-4).
  • Hardened platform ops: etcd restore isolation/recovery, operator snapshot e2e stability, and expanded metrics/Helm wiring.
  • Added the stateless Iceberg table processor and templates.
  • Introduced KafScale processors for ephemeral compute in streaming pipelines.
  • Added a benchmark suite.

Known limitations

  • TLS/SASL authentication is planned for v1.5+ (see roadmap).

Bug fixes

  • #47: Iceberg demo stability fixes and output improvements.
  • #44: etcd auto-restore race can overwrite data; fixed restore isolation/recovery.
  • #43: consume error on unstable etcd.
  • #42: HPA broker scale-out advertised metadata fixes.
  • #36: Apache Flink source failure fixes plus ListOffsets v0-4 support.

Security fixes

  • No known runtime vulnerabilities were fixed in this release.