# llm-anthropic 0.27

> Source: <https://simonwillison.net/2026/Aug/24/llm-anthropic/>
> Published: 2026-08-24 16:27:04+00:00

**Release:** [llm-anthropic 0.27](https://github.com/simonw/llm-anthropic/releases/tag/0.27)

This release of the Anthropic plugin for [LLM](https://llm.datasette.io/) mainly provides compatibility with the recently released [anthropic v1.0.0](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.0.0) Python library, which switches from `httpx`

to [httpx2](https://github.com/pydantic/httpx2). OpenAI made the same change in their [v3.0.0 release](https://github.com/openai/openai-python/releases/tag/v3.0.0) two weeks ago.

Anthropic provide this [migration guide](https://github.com/anthropics/anthropic-sdk-python/blob/v1.0.0/MIGRATION.md) for upgrading to 1.0, so I prompted Fable 5 in Claude Code with:

`Upgrade to anthropic>=1 - read https://raw.githubusercontent.com/anthropics/anthropic-sdk-python/refs/heads/main/MIGRATION.md and get the tests passing`

Here's [the resulting PR](https://github.com/simonw/llm-anthropic/pull/84).