ReleaseAnthropicAnthropicpublished Jun 12, 2026seen 1d

anthropics/claude-agent-sdk-typescript v0.3.174

anthropics/claude-agent-sdk-typescript

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v0.3.174

Repository: anthropics/claude-agent-sdk-typescript

Tag: v0.3.174

Published: 2026-06-12T01:16:41Z

Prerelease: no

Release notes:

What's changed

  • SDK consumers now receive the system/model_fallback message for all fallback triggers — overloaded, server_error, and last_resort in addition to model_not_found and permission_denied — and the message's trigger field gained the server_error and last_resort values

Update

npm install @anthropic-ai/claude-agent-sdk@0.3.174
# or
yarn add @anthropic-ai/claude-agent-sdk@0.3.174
# or
pnpm add @anthropic-ai/claude-agent-sdk@0.3.174
# or
bun add @anthropic-ai/claude-agent-sdk@0.3.174

Notability

notability 3.0/10

Routine SDK minor version update