Release Wed, Oct 21, 2026 1 min read

Claude Agent Sdk Python 0.2.170

Original release notes

Bug Fixes

Fixed parallel tool calls missing from session messages: get_session_messages and get_session_messages_from_store now return every tool call and result from turns that ran tools in parallel. Previously only one branch of the forked transcript was followed, dropping some calls and results (#1422)

Internal/Other Changes

Updated bundled Claude CLI to version 2.1.306
CI: release uploads to PyPI now use trusted publishing (GitHub OIDC) instead of a long-lived API token (#1418)

PyPI: https://pypi.org/project/claude-agent-sdk/0.2.170/

pip install claude-agent-sdk==0.2.170