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AI SDK by Vercel - The AI Toolkit for TypeScript and JavaScript

ai-sdk.dev/docs

vercel/ai

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--- title: Migrate AI SDK 3.2 to 3.3 description: Learn how to upgrade AI SDK 3.2 to 3.3. --- # Migrate AI SDK 3.2 to 3.3 <Note> Check out the [AI SDK 3.3 release blog post](https://vercel.com/blog/vercel-ai-sdk-3-3) for more information about the release. </Note> No breaking changes in this release. The following changelog encompasses all changes made in the 3.2.x series, introducing significant improvements and new features across the AI SDK and its associated libraries: ## New Features ### Open Telemetry Support - Added experimental [OpenTelemetry support](/docs/ai-sdk-core/telemetry#telemetry) for all [AI SDK Core functions](/docs/ai-sdk-core/overview#ai-sdk-core-functions), enabling better observability and tracing capabilities. ### AI SDK UI Improvements - Introduced the experimental **`useObject`** hook (for React) that can be used in conjunction with **`streamObject`** on the backend to enable seamless streaming of structured data. - Enhanced **`useChat`** with experimental support for attachments and streaming tool calls, providing more versatile chat functionalities. - Patched **`useChat`** to prevent empty submissions, improving the quality of user interactions by ensuring that only intended inputs are processed. - Fix **`useChat`**'s **`reload`** function, now correctly sending data, body, and headers. - Implemented **`setThreadId`** helper for **`useAssistant`**, simplifying thread management. - Documented the stream data protocol for **`useChat`** and **`useCompletion`**, allowing developers to use these functions with any backend. The stream data protocol also enables the use of custom frontends with **`streamText`**. - Added support for custom fetch functions and request body customization, offering greater control over API interactions. - Added **`onFinish`** to **`useChat`** hook for access to token usage and finish reason. ### Core Enhancements - Implemented support for sending custom request headers, enabling more tailored API requests. - Added raw JSON schema support alongside existing Zod support, providing more options for schema and data validation. - Introduced usage information for **`embed`** and **`embedMany`** functions, offering insights into token usage. - Added support for additional settings including **`stopSequences`** and **`topK`**, allowing for finer control over text generation. - Provided access to information for all steps on **`generateText`**, providing access to intermediate tool calls and results. ### New Providers - [AWS Bedrock provider](/providers/ai-sdk-providers/amazon-bedrock). ### Provider Improvements - Enhanced existing providers including Anthropic, Google, Azure, and OpenAI with various improvements and bug fixes. - Upgraded the LangChain adapter with StreamEvent v2 support and introduced the **`toDataStreamResponse`** function, enabling conversion of LangChain output streams to data stream responses. - Added legacy function calling support to the OpenAI provider. - Updated Mistral AI provider with fixes and improvements for tool calling support. ### UI Framework Support Expansion - SolidJS: Updated **`useChat`** and **`useCompletion`** to achieve feature parity with React implementations. - Vue.js: Introduced **`useAssistant`** hook. - Vue.js / Nuxt: [Updated examples](https://github.com/vercel/ai/tree/main/examples/nuxt-openai) to showcase latest features and best practices. - Svelte: Added tool calling support to **`useChat`.** ## Fixes and Improvements - Resolved various issues across different components of the SDK, including race conditions, error handling, and state management.