Anthropic released v1.0 of the Python SDK, moving its HTTP layer from httpx to httpx2.

This is a migration release: Python 3.10 or later, httpx2 objects, and removed deprecated surfaces now matter.

It keeps DefaultHttpxClient helpers unchanged, but tracing or mocking libraries that patch httpx need httpx2.alias_httpx() at startup.

• Aug 22, 2026OpenAI model docs removed GPT-5.6 Sol, Terra, and Luna model guidance.
• Aug 22, 2026Anthropic moved computer use out of beta on Claude API as `computer_toolset_20260801`.
• Aug 22, 2026Anthropic moved Agent Skills and the Skills API out of beta on the Claude API.

This is the world we build in. It moves this fast. We move with it.