- Upgrade build environment to Go 1.19.4 and bump golang.org/x/crypto to v0.5.0.
- Fix multiple JetStream and leaf‑node issues: stream meta‑file recovery, max‑bytes enforcement, consumer restoration, observer state handling, and duplicate message bugs.
- Re‑introduce HealthzOptions.JSEnabled to maintain backward compatibility.
Release v2.9.11
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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;