- Updated binaries and Docker images to build with Go 1.17.10.
- Fixed JetStream consumer pending count errors and spurious 408 status messages, and reduced lock contention between acknowledgments and delivery.
- Fixed MQTT duplicate‑client‑ID detection across different domains.
Release v2.8.4
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Added Leafnodes support with a configurable dial timeout option for high‑latency links
Upgrade to Go 1.25.12 and bump critical dependencies (klauspost/compress v1.19.2, golang.org/x/crypto v0.55.0).
Decoupled Raft transport and increased disk concurrency (now configurable) with several JetStream performance and memory optimizations;