- Fixed JetStream deadlock with stream mirrors using non‑limit retention and corrected memory leak
- Resolved panic when slicing a message block cache buffer and fixed incorrect max‑consumers enforcement on internal direct consumers
- Enforced storage limit=0, proper handling of exceeded account resources, and ensured internal connections no longer count toward max connections
Release v2.6.1
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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;