- Expose client ID through the embedded ClientAuthentication API
- Fix race conditions and protocol corruption bugs affecting subscription interest, $JS.ACK rewriting and compressed WebSocket handling, plus correct the /accstatz monitoring endpoint
- Improve JetStream stability with correct Raft peer tracking, accurate quorum calculation, filestore performance fix, consistent purge behavior, added config constraints and scale‑down consistency
Release v2.12.10
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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;