v1.102.3 v4.20.4
medium risk
cheaper-inference/OmniRouteAug 20, 2026 → Aug 20, 20260 days between releases
What's New
Fixes critical crash on divergence and adds graph encoding APIs.
New Features
- New public APIs Graph_EncodingVersion and Graph_GetDecoder for graph versioning.
Improvements
- Incremental matrix rebuilding speeds up RDB decoding performance.
Bug Fixes
- Fixes SIGSEGV crash when replicas diverge from master by resyncing on missing nodes/edges.
Upgrade Notes
The version jump is significant; review the full changelog for detailed migration paths.
The Two Releases
v1.102.3
v1.102.3
Aug 20, 2026· 2 months ago
Minimal release notes: "Please refer to the changelog available at https://tailscale.com/changelog"
Full release notesv4.20.4
v4.20.4
Aug 20, 2026· 2 months ago
This release addresses a critical crash (SIGSEGV) in replicas when diverging from the master by handling missing nodes and edges gracefully. Performance is improved by rebuilding matrices incrementally during decoding. Additionally, new public APIs are exposed for graph encoding versioning.
Full release notes