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1,182 this month · 169 companies

Claude Agent SDK 0.2.167

UpdateyesterdayUnverifiedAdded Oct 15, 2026

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

Topics: AI agents, LLMs, Developer tools

Anthropic's release notes

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Updateunverified

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...

Updateunverified

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

Updateunverified

Claude Agent SDK 0.2.164

Internal/Other Changes Updated bundled Claude CLI to version 2.1.292 CI: security hardening for GitHub Actions workflows that call Claude , egress-firewall runner, network allow list, auto permission mode, and a check workflow to enforce them CI: raised PyPI per-file limit guard to 250 MiB to match the updated project limit Tests: fixed thinking-deltas e2e...

Updateunverified

Claude Agent SDK 0.2.163

Internal/Other Changes Updated bundled Claude CLI to version 2.1.286 CI: pinned the model for issue triage to fix failures caused by the CLI's new default model PyPI: https://pypi.org/project/claude-agent-sdk/0.2.163/ bash pip install claude-agent-sdk==0.2.163

Updateunverified

Claude Agent SDK 0.2.162

Internal/Other Changes Updated bundled Claude CLI to version 2.1.285 PyPI: https://pypi.org/project/claude-agent-sdk/0.2.162/ bash pip install claude-agent-sdk==0.2.162

Updateunverified

Claude Agent SDK 0.2.161

Internal/Other Changes Updated bundled Claude CLI to version 2.1.284 PyPI: https://pypi.org/project/claude-agent-sdk/0.2.161/ bash pip install claude-agent-sdk==0.2.161

Updateunverified

Claude Agent SDK 0.2.160

Bug Fixes Fixed follow-up turns failing after background subagents: When using query() with hooks, can_use_tool, or SDK MCP servers, stdin was closed too early if a subagent finished just before the turn's result arrived. Follow-up turns would then fail with "Stream closed" and the model would report the tool as refused.

Updateunverified

Claude Agent SDK 0.2.159

Internal/Other Changes Updated bundled Claude CLI to version 2.1.281 Pinned default model for e2e tests to claude-opus-5 to work around CI failures with the CLI's new default model ( #1287 ) PyPI: https://pypi.org/project/claude-agent-sdk/0.2.159/ pip install claude-agent-sdk==0.2.159

Also shipped on Oct 14, 2026

Anthropic in October 2026