v0.21.0-alpha.2

What's Changed

• bump version to v0.21.0-alpha.1 by @rainliu in #865
• update SettingEngineBuilder by @rainliu in #866
• [Pre 1.0] C1 — Transport Objects #841 by @rainliu in #867
• Apply the SettingEngine TURN allocation Refresh cap by @duszmox in #870
• Android ICE restart stalls after ~10s background; rebinding UDP sockets restores recovery #868 by @rainliu in #872

New Contributors

• @duszmox made their first contribution in #870

Full Changelog: v0.21.0-alpha.1...v0.21.0-alpha.2