- Added JetStream enhancements: replica updates during stream updates, stream placement by tags, and sparse consumer replay optimizations.
- Fixed multiple issues including Gateway auth timeout handling, JetStream flow control stalls, inaccurate consumer state, and rare RAFT inbox reuse bugs.
- Improved send performance, reduced internal logging, and updated dependencies and Go version to 1.17.7.
Release v2.7.3
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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;