v1.102.3 6.0.8

medium risk

umputun/ralphexAug 20, 2026 → Aug 20, 20260 days between releases

What's New

JSPI is no longer experimental, epoll support is added, and LEGALIZE_JS_FFI/SOCKET_WEBRTC are removed.

Breaking Changes

  • Removed LEGALIZE_JS_FFI setting
  • Removed SOCKET_WEBRTC setting

New Features

  • JSPI fully integrated without experimental warnings
  • Full epoll support on legacy JS filesystem (level/edge-triggered, EPOLLEXCLUSIVE, etc.)

Upgrade Notes

Update configuration to remove LEGALIZE_JS_FFI and SOCKET_WEBRTC settings. WASM_BIGINT is now enabled by default; disable it only if targeting JavaScript via -sWASM=0.

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 notes
6.0.8

6.0.8

Aug 20, 2026· 2 months ago

JSPI is no longer experimental. Adds full epoll support to the legacy JS filesystem. Removes legacy settings and deprecates WASM_BIGINT.

Full release notes