anthropics/claude-agent-sdk-typescript v0.3.261

v0.3.261

Repository: anthropics/claude-agent-sdk-typescript

Tag: v0.3.261

Published: 2026-09-04T19:58:15Z

Prerelease: no

Release notes:

What's changed

• Added pluginDelivery: 'initialize' to send plugins over stdin so the launch command line no longer grows with the plugin count (fixes Windows start failures with many plugins)
• Fixed query() throwing "Object not disposable" in runtimes without a native Symbol.dispose, such as Node ≤22 vm contexts (Jest's node environment, vitest vmThreads/vmForks) and Node <18.18
• Updated to parity with Claude Code v2.1.261

Update

npm install @anthropic-ai/claude-agent-sdk@0.3.261
# or
yarn add @anthropic-ai/claude-agent-sdk@0.3.261
# or
pnpm add @anthropic-ai/claude-agent-sdk@0.3.261
# or
bun add @anthropic-ai/claude-agent-sdk@0.3.261