Anthropic SDK Python v1.1.0 repo
First minor version release of the Anthropic Python SDK post-GA: updates the thinking mode beta header, adds Organization API endpoints, and ships a critical fix for the pause_turn state in the tool-use runner.
What it does for you: The pause_turn fix is an operational issue for any Axion agent using streamed tool calls: without it, a paused turn causes the runner to stall rather than hand back control. Upgrading to v1.1.0 closes that gap. The Organization API additions open programmatic workspace and member management that Axion does not use yet but the endpoints are now stable.
In practice: A clean, focused minor bump from Anthropic. One line in the changelog about thinking beta, one about the org API, one about the runner fix. No noise.
For: Both runtimes. Python library, works in any Python runtime including Hermes scripts and Claude Code tools.
Verdict: build now. The pause_turn runner fix is the rare changelog line that is immediately load-bearing for Axion agent flows. Score 35, threshold 31 for build now.
Build #1 Anthropic SDK Python v1.1.0: use the ai-implementation-build-intake skill to build this safely. Source: https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.1.0. Save canonical skill/agent under AXION\Skills and AXION\Agents.
Source · v1.1.0 tagged 2026-08-26 on GitHub. PyPI shows version 1.1.0 as latest. Changelog lists 3 changes: thinking beta header update, Organization API, and pause_turn fix in the tool-use runner. Previous stable was v1.0.0 released 2026-08-15.