- Added support for Leafnode over WebSocket via a new allowed connection type and fixed related restrictions.
- Fixed several JetStream and Leafnode issues including slowness on large interior deletes, panic on source removal, corrupted headers with MetaOnly, TLS config reload handling, and account connection limit edge cases.
- Updated documentation links, aligned internal timeouts to 4 seconds, and built binaries with Go 1.16.10.
Release v2.6.6
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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;