Milestone

v6.0

Setup

• branching
  • Create v5.0 branch from latest main, setup releases to latest - patch only (as always)
  • Set releases from main to be <next minor version>-beta.X, e.g. [email protected]
  • document new branching in contributing/branches.md

Main features

See sub issues below

• Direct support for multiple validation libraries
• Preliminary Tool Outputs
• Experimental Context Object
• Experimental Download Function
• Warning Logger (feat(ai): log warnings #8343)

Secondary features

• Preliminary tool results for provider-executed tools (example: OpenAI image generation tool which sends up to 4 preview images) - requires spec change #8889

Pre-release requirements

• add tests for v2 -> v3 transforms, see preparations in fix(provider): add specificationVersion to ProviderV3 #9820
• v5.ai-sdk-dev. Update URLs from [bugfix] improve error message #11057

Release process

• search for // TODO ai sdk 5 and // TODO ai sdk 6 to be sure everything we wanted to was addressed, create issues for remaining comments
• Create blog post
• Create demo(s)
• update release config for main branch to release to latest
• Release [email protected] and bump all other packages accordingly in latest
• Make sure @ai-sdk/provider gets released as 3.0.0

Breaking changes

• in general, compare exports of ai@5 and ai@6

• ai/test no longer exports v2 mock classes now. Use the new v3 mock classes instead.

  Before

  import {
    MockEmbeddingModelV2,
    MockImageModelV2,
    MockLanguageModelV2,
    MockProviderV2,
    MockSpeechModelV2,
    MockTranscriptionModelV2,
  } from "ai/test";

  After

  import {
    MockEmbeddingModelV3,
    MockImageModelV3,
    MockLanguageModelV3,
    MockProviderV3,
    MockSpeechModelV3,
    MockTranscriptionModelV3,
  } from "ai/test";

• @ai-sdk/azure: azure() now uses the Responses API. Use azure.chat() to revert to azure()'s prior behavior feat(azure): update default provider to use responses API #9868

• output argument for generateText({ output })/streamText({ output }) is now stable and supports array/enum/json