- Fix security issue where TLS default ciphers were not applied when configuring via CLI (CVE‑2021‑32026).
- Add JetStream support for multiple domains across leafnodes via a new `domain` field and improve its stability (compact, purge, expiration, concurrent operations).
- Resolve many bugs: panic on NATS resolver start, leafnode URL randomization behavior, monitoring /varz counts, MQTT server‑name enforcement, Raft catch‑up loops, stream name validation, Windows JWT parsing, and various JetStream, QoS‑1, ...
Release v2.2.3
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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;