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claude_agent_sdk_python_releases · Aug 18, 2026 · release
Source brief
claude-agent-sdk-python v0.2.140
github.comAug 18, 2026
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Release highlights
- MCP 2.x support for in-process SDK MCP servers : The SDK now supports mcp 2.x alongside 1.x (dependency widened to mcp>=1.23.0,<3.0.0 ). In-process servers a...
- forward_subagent_text option : New forward_subagent_text boolean on ClaudeAgentOptions forwards a subagent's text and thinking blocks as messages in the stre...
- ResultError exception with structured error payload : When the CLI exits after a terminal error result, the SDK now raises ResultError (a subclass of Process...
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