- Dropped support for older OS versions (Windows 7/8, Server 2008/2012, macOS 10.13‑10.14) and updated UI labels (macOS Settings, Windows migration robustness).
- Security and reliability upgrades: forced‑reauth warning with countdown, dynamic DERP buffer sizing, improved endpoint advertising, higher Linux throughput (>10 Gb/s) and lower CPU use on large routing tables.
- New integrations and fixes: Android VPN connect/disconnect intents, Tailscale SSH on gokrazy, QNAP UI reboot fix.
1.40.0
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