Download Latest Version v0.3.143 source code.tar.gz (31.6 kB)
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README.md 2026-05-14 1.5 kB
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What's changed

  • Breaking: Removed the v2 session API (unstable_v2_createSession, unstable_v2_resumeSession, unstable_v2_prompt, SDKSession, SDKSessionOptions), deprecated since 0.2.133. Use query() — pass an AsyncIterable<SDKUserMessage> for multi-turn, or options.resume to continue a session.
  • Breaking: MCP servers now connect in the background by default; sessions start immediately and slow servers report status: "pending" in init until ready. Set MCP_CONNECTION_NONBLOCKING=0 to restore the old behavior of waiting up to 5s before the first query, or mark a server alwaysLoad: true to require it in turn 1.
  • Breaking: Headless and SDK sessions now use Task tools (TaskCreate / TaskUpdate / TaskGet / TaskList) instead of TodoWrite, deprecated since 0.2.136. Tool consumers should accumulate by task ID instead of replacing a snapshot list.
  • Surfaced request_id, subagent_type, and task_description on SDK message types and task system events
  • Headless --sdk-url sessions now exit non-zero with a stderr diagnostic when the remote transport closes permanently (401/403/404 or WS permanent close), instead of silently exiting 0

Update

:::sh
npm install @anthropic-ai/claude-agent-sdk@0.3.142
# or
yarn add @anthropic-ai/claude-agent-sdk@0.3.142
# or
pnpm add @anthropic-ai/claude-agent-sdk@0.3.142
# or
bun add @anthropic-ai/claude-agent-sdk@0.3.142
Source: README.md, updated 2026-05-14