March 19, 2026

Version 0.0.39

Breaking changes

Synchronous `createSunnyChat`

createSunnyChat now returns a VanillaChatInstance directly instead of a Promise<VanillaChatInstance>. Remove await from all call sites:

Before:

1 const chat = await createSunnyChat({ ... });

After:

1 const chat = createSunnyChat({ ... });

TypeScript consumers using Awaited<ReturnType<typeof createSunnyChat>> should update to ReturnType<typeof createSunnyChat>. Calling await on a non-Promise is harmless at runtime, but TypeScript will flag the unnecessary Awaited wrapper.

New features

Proactive authentication for token exchange

For tokenExchange users, the SDK now connects to the WebSocket and authenticates immediately on initialization — in the background, without blocking the UI. Previously, authentication was deferred until the user sent their first message, causing a noticeable delay. Now the first message sends instantly.

Send button loading spinner

While the SDK connects and authenticates in the background, the send button displays a minimalistic loading spinner. Once the connection is authenticated and ready, the spinner transitions to the standard send arrow icon. This replaces the previous full-UI loading state with a lightweight, non-blocking indicator.