- Upgrade to Go 1.17.6 and add JetStream enhancements: delayed NAK, consumer backoff list, replication‑lag metrics, and reworked pull consumers.
- Introduce a /healthz endpoint that reports full system health and add JWT revocation granularity while suppressing plaintext‑password warnings.
- Fix bugs including negative deleted‑message count, in‑progress request handling on leadership change, missing git commit hash, possible deadlock in JWT authentication, and related issues.
Release v2.7.1
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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;