Releasesby IbisClaude Agent SDK 0.2.170
Update3 days agoUnverifiedAdded Oct 21, 2026
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.
Topics: AI agents, LLMs, Developer tools
More Claude Agent SDK releases
Every Claude Agent SDK releaseClaude Agent SDK 0.2.171
Internal/Other Changes Updated bundled Claude CLI to version 2.1.307 PyPI: https://pypi.org/project/claude-agent-sdk/0.2.171/ bash pip install claude-agent-sdk==0.2.171
Claude Agent SDK 0.2.172
Internal/Other Changes Updated bundled Claude CLI to version 2.1.308 PyPI: https://pypi.org/project/claude-agent-sdk/0.2.172/ bash pip install claude-agent-sdk==0.2.172
Claude Agent SDK 0.2.173
Internal/Other Changes Updated bundled Claude CLI to version 2.1.309 PyPI: https://pypi.org/project/claude-agent-sdk/0.2.173/ bash pip install claude-agent-sdk==0.2.173
Claude Agent SDK 0.2.169
Documentation Clarified that include_hook_events does not suppress SessionStart and Setup hook events, which the CLI emits regardless of the setting Internal/Other Changes Updated bundled Claude CLI to version 2.1.305 CI: hash-pinned the release build tools (build, twine, wheel, hatchling) so a tampered or unexpected download stops the job PyPI...
Claude Agent SDK 0.2.168
Internal/Other Changes Updated bundled Claude CLI to version 2.1.301 PyPI: https://pypi.org/project/claude-agent-sdk/0.2.168/ bash pip install claude-agent-sdk==0.2.168
Claude Agent SDK 0.2.166
New Features Hook-specific output types: Added typed output classes and missing input fields for hooks, giving hook implementations precise type information instead of untyped dicts SystemInitData TypedDict: The init system message payload is now fully typed via SystemInitData, along with nested types SystemInitMcpServer, SystemInitPlugin...
Claude Agent SDK 0.2.167
Internal/Other Changes Updated bundled Claude CLI to version 2.1.300 PyPI: https://pypi.org/project/claude-agent-sdk/0.2.167/ bash pip install claude-agent-sdk==0.2.167
Claude Agent SDK 0.2.165
Internal/Other Changes Updated bundled Claude CLI to version 2.1.294 CI: alert Slack when a release is blocked or fails PyPI: https://pypi.org/project/claude-agent-sdk/0.2.165/ bash pip install claude-agent-sdk==0.2.165
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