kafrust v0.2.27

Summary

• Publishes coordinated kafrust-protocol and kafrust 0.2.27 crates.
• Includes the current pure-Rust Kafka protocol, Admin, security, compression, idempotent producer, transaction, consumer-group, observability, and failover qualification slices.

Breaking changes

• None intended for this patch release.

Migration notes

• Existing kafrust 0.2.x users can update both workspace dependencies to 0.2.27.

Compatibility evidence

• Both crates were published protocol-first and resolve at 0.2.27.
• Both docs.rs pages returned HTTP 200.
• A fresh external project compiled kafrust 0.2.27 with ls.
• Current-main Live Kafka Smoke run 31716400583 passed all 17 jobs across Kafka 3.7.2, 3.8.1, 3.9.1, and 4.3.1, including secured and multi-broker profiles.

Verification

• Workspace format, check, test, Clippy, docs, and diff checks passed before release preparation.
• Live leader-epoch and transaction outcome gates passed at gate level.

Known limits

• This remains a pre-1.0 alpha release. Broader data-loss/log-retention fault matrices, provider-specific OAuth/OIDC compatibility, transparent post-transmission Admin mutation replay, and cross-client performance parity are not claimed.