Update pydantic-ai-slim requirement from <=2.36.0,>=2.9.0 to >=2.9.0,<=2.39.0

[dependabot]

Updates the requirements on pydantic-ai-slim to permit the latest version.

Release notes

Sourced from pydantic-ai-slim's releases.

v2.39.0 (2026-09-03)

What's Changed

🚀 Features

• Add OpenAI gpt-6-astra model support by @​dsfaccini in pydantic/pydantic-ai#8055

🐛 Bug Fixes

• Fix the context_subtree() exporter cache and its span-processor leaks by @​dsfaccini in pydantic/pydantic-ai#7667
• Restore the Instrumentation spec option include_model_request_parameters and sharpen the undeclared-attribute merge error by @​DouweM in pydantic/pydantic-ai#8046
• Detect Azure content-filter errors for AzureProvider and for AsyncAzureOpenAI clients on OpenAIProvider by @​quinnarnold in pydantic/pydantic-ai#7922
• Emit speech finalized by a tool call on stream_transcripts() by @​DouweM in pydantic/pydantic-ai#8062
• Attribute tool-returned media to its originating tool call when it can't ride the tool result by @​dsfaccini in pydantic/pydantic-ai#7830
• Restore capability composition invariants by @​dsfaccini in pydantic/pydantic-ai#8047

Full Changelog: pydantic/pydantic-ai@v2.38.0...v2.39.0

Changelog

Sourced from pydantic-ai-slim's changelog.

Upgrade Guide

In September 2025, Pydantic AI reached V1 and committed to API stability: no changes that break your code until V2. V2 is now available, collecting the breaking and behavior changes that stability guarantee didn't allow. This guide is the canonical place to learn what's in V2, how to install it, and how to upgrade; for the guarantees behind these version numbers, see the Version Policy.

Breaking Changes

Here's a filtered list of the breaking changes for each version to help you upgrade Pydantic AI.

v2.0.0 (2026-06-23)

The stable V2.0 release. There are no new breaking or behavior changes since the betas; the full breaking-change list and recommended upgrade path are in the v2.0.0b1 entry below. Install it with:

uv add pydantic-ai

v2.0.0b7 (2026-06-10)

The seventh V2 beta, forked from v1.107.0. There are no new V2 breaking or behavior changes since v2.0.0b6 below — everything in that entry applies unchanged — but this beta picks up the latest V1 release on top, which adds Claude Fable 5 / Mythos 5 model support and OpenRouter prompt caching (CachePoint), plus known_model_names() and Anthropic fixes; see the v1.107.0 release notes for the full list.

Install it the same way, pinning the exact pre-release version:

pip/uv-add "pydantic-ai==2.0.0b7"

For the full breaking-change list and the recommended upgrade path, see the v2.0.0b1 entry below; the only difference is that the latest V1 to upgrade through first is now v1.107.0.

v2.0.0b6 (2026-06-04)

The sixth V2 beta, forked from v1.106.0. There are no new V2 breaking or behavior changes since v2.0.0b5 below — everything in that entry applies unchanged — but this beta picks up the latest V1 release on top, which adds api_host/timeout configuration and base seed mapping for the xAI provider, plus streaming and data-URI handling fixes; see the v1.106.0 release notes for the full list.

Install it the same way, pinning the exact pre-release version:

pip/uv-add "pydantic-ai==2.0.0b6"

For the full breaking-change list and the recommended upgrade path, see the v2.0.0b1 entry below; the only difference is that the latest V1 to upgrade through first is now v1.106.0.

v2.0.0b5 (2026-06-02)

The fifth V2 beta, forked from v1.105.0. There are no new V2 breaking or behavior changes since v2.0.0b4 below — everything in that entry (including the prepare-callbacks change) still applies — but this beta picks up the latest V1 release on top, which adds on-demand (deferred-loading) capabilities and Grok 4.3 reasoning_effort support, plus GoogleModelSettings.google_cached_content and Temporal gateway/ fixes; see the v1.105.0 release notes for the full list.

Install it the same way, pinning the exact pre-release version:

pip/uv-add "pydantic-ai==2.0.0b5"

... (truncated)

Commits

• 9a2b7f2 Add OpenAI gpt-6-astra model support (#8055)
• 037302d Restore capability composition invariants (#8047)
• 47bad15 Attribute tool-returned media to its originating tool call when it can't ride...
• 9c580a5 Stop pricing MiniMax-M3 into the AWF AI-credits table (#8073)
• e537bca Add AWS Lambda durable functions to the durable execution docs (#8063)
• 509cfe5 Pin the AWF firewall binary to the version gh-aw bundles (#8066)
• 68252f1 Restructure the docs sidebar and tighten the front pages (#8064)
• 446332d Emit speech finalized by a tool call on stream_transcripts() (#8062)
• 9b6443a Stop the docs navigation dispatcher failing on its own acknowledgement (#8065)
• 7b766c3 Move the capability-event examples off Harness's file_system event namespac...
• Additional commits viewable in compare view

[fswair]

Closing because this automated update is incomplete as a standalone change. It updates only the root development requirement, while the published pydantic-acp package and compatibility contract remain capped at Pydantic AI 2.36.0. The repository compatibility test fails (1 failed, 9 passed). A future coordinated compatibility bump should update package metadata, matrix coverage, tests, and the lockfile together.

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.