- Updated to Go 1.16.4 and rebuilt server binaries/Docker images.
- Added JetStream external stream info for upstream sources and changed GetOpts() to return public ClientOpts (API break).
- Fixed multiple JetStream and Leafnode issues: invalid mirror deduplication window, asset loss on restart, import name collisions, response handling, direct consumer visibility, and WebSocket origin restrictions.
Release v2.2.4
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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;