What's Changed

🚀 Features

• Add Claude Opus 4.6, anthropic_effort and anthropic_thinking.type='adaptive' by @dsfaccini in https://github.com/pydantic/pydantic-ai/pull/4216
• Add anthropic_betas to AnthropicModelSettings by @bohdanhr in https://github.com/pydantic/pydantic-ai/pull/4180

🐛 Bug Fixes

• Fix Bedrock CachePoint placement with multiple trailing documents by @psg2 in https://github.com/pydantic/pydantic-ai/pull/4207
• Disallow downloading FileUrls pointing at the local network by default by @DouweM in https://github.com/pydantic/pydantic-ai/pull/4227

Full Changelog: https://github.com/pydantic/pydantic-ai/compare/v1.55.0...v1.56.0