v1.102.3 v4.20.4
low risk
apple/containerAug 20, 2026 → Aug 20, 20260 days between releases
What's New
Fixes SIGSEGV crashes on divergence and speeds up graph loading.
New Features
- New public APIs: Graph_EncodingVersion and Graph_GetDecoder
Improvements
- Graph loading performance improved by removing full sync during RDB decoding
- New public APIs allow external modules to manage graph encoding versions
Bug Fixes
- Fixes SIGSEGV crashes when replica state diverges from master
Upgrade Notes
External modules can now use new public APIs `Graph_EncodingVersion` and `Graph_GetDecoder` to manage graph encoding. The crash fix for replica divergence ensures stability during state synchronization.
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
Enhances replication stability and graph loading performance by fixing crash conditions on divergence and optimizing decoder operations.
Full release notes