- Fixed several security-related issues: gateway pinned cert reload, /connz endpoint no longer exposes bearer JWTs, and command‑line URL secrets are redacted.
- Resolved multiple bugs affecting connection handling, compression negotiation, control‑line limits, and message header mutation.
- Added documentation reference to the 2.11 Upgrade Guide for compatibility notes with 2.10.x.
Release v2.11.17
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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;