Claude Agent SDK 0.2.177
New Features on_failure option for HookMatcher: Control what happens when a hook callback fails. Set on_failure="block" to block the action when a callback raises, returns None, or returns a value the CLI rejects. Defaults to "continue" (treat failure as no decision).
Also shipped Nov 3, 2026Anthropic in November 2026 →
uv 0.13.7
Release Notes Released on 2026-11-03. Preview features Add --output-version to uv workspace metadata for requesting a specific schema version Report aliased OSV records as a single vulnerability in uv audit Bug fixes Treat workspace member paths added by uv init or uv add as literals instead of glob patterns Prevent uv's Windows trampolines from closing...
ty 0.0.96
Release Notes Released on 2026-11-03. Bug fixes Fix a panic when checking protocols involving runtime type aliases Preserve Pydantic field metadata in quoted annotations Resolve class-local names in generic type aliases LSP server Keep argument name hints display-only before later positional arguments or *args Keep argument name hints display-only when they...
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Claude Agent SDK 0.2.176
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Claude Agent SDK 0.2.175
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Claude Agent SDK 0.2.174
Claude Agent SDK 0.2.174 includes an update to the bundled Claude CLI version 2.1.310.
Claude Agent SDK 0.2.172
Claude Agent SDK 0.2.172 includes an updated bundled Claude CLI version.
Claude Agent SDK 0.2.173
Claude Agent SDK 0.2.173 is available, featuring an updated bundled Claude CLI version 2.1.309.
Claude Agent SDK 0.2.170
Claude Agent SDK 0.2.170 fixes an issue where parallel tool calls were missing from session messages and updates the bundled CLI.
Claude Agent SDK 0.2.171
Anthropic released Claude Agent SDK 0.2.171, updating the bundled Claude CLI to version 2.1.307.
Claude Agent SDK 0.2.169
Documentation Clarified that include_hook_events does not suppress SessionStart and Setup hook events, which the CLI emits regardless of the setting Internal/Other Changes Updated bundled Claude CLI to version 2.1.305 CI: hash-pinned the release build tools (build, twine, wheel, hatchling) so a tampered or unexpected download stops the job PyPI...