- Added extensive JetStream enhancements such as AllowDirect API, MirrorDirect, InactiveThreshold for durables, stream move support, filter subjects, consumer replica changes, AES‑GCM encryption for FileStore, catch‑up bandwidth limits, pa...
- Introduced operational changes including leafnode connections being closed when hub and spoke share the same cluster name (with 30 s reconnect delay), removal of optimistic gateway mode, new monitoring endpoints (/accstatz, enhanced /hea...
- Fixed numerous bugs and security concerns: data races, configuration reload failures, gateway panics, stream placement errors, pull consumer handling bugs, and added AES‑GCM encryption for both FileStore and RAFT stores.
Release v2.9.0
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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;