- Added MQTT JavaScript API timeout option for JetStream operations.
- Fixed TLS 1.2 negotiation with ECDSA certificates and a JetStream regression affecting consumer interest calculations.
- Improved JetStream allocation efficiency and corrected the connz monitoring endpoint to list open connections properly.
Release v2.11.3
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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;