- Added reference to the 2.10 Upgrade Guide for backward‑compatibility notes with 2.9.x.
- Built the server with Go 1.21.6.
- Fixed a JetStream Guard panic when determining the starting sequence for stream sources from 2.9.x servers (issue 4950).
Release v2.10.9
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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;