- JetStream receives major upgrades: beta support for migrating streams/consumers across clusters, a unique tag to prevent same‑AZ placement, Stream Alternates metadata, deterministic subject token mapping, healthz consumer checks, max‑str...
- Extensive stability fixes resolve panics, deadlocks, leader‑election glitches, consumer state bugs, scaling and replication issues, file‑store underflows, duplicate URL/name detection, and improve cluster and monitoring reliability.
- Security hardening adds validation of nkeys/JWTs in the account resolver (CVE‑2022‑28357), rejection of messages with malformed $JS.ACK reply subjects, and TLS verification fixes for monitoring endpoints.
Release v2.8.0
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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;