v1.102.3 6.0.8

high risk

msitarzewski/agency-agentsAug 20, 2026 → Aug 20, 20260 days between releases

What's New

Removed LEGALIZE_JS_FFI and SOCKET_WEBRTC settings; stabilized JSPI and added epoll support.

Breaking Changes

  • Removal of LEGALIZE_JS_FFI setting
  • Removal of SOCKET_WEBRTC setting

New Features

  • epoll support for legacy JS filesystem
  • JSPI setting stabilized and removed experimental warnings

Improvements

  • Legacy settings cleanup
  • WASM_BIGINT deprecation to standardize BigInt integration

Upgrade Notes

Users relying on the deprecated LEGALIZE_JS_FFI or SOCKET_WEBRTC settings must update their configurations. WASM_BIGINT is now deprecated; it is enabled by default unless 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

Emscripten release stabilizing the JSPI setting and adding epoll support to the legacy filesystem, while removing deprecated settings like LEGALIZE_JS_FFI.

Full release notes