Sourced from @​anthropic-ai/sdk's releases.

sdk: v0.64.0

0.64.0 (2025-09-26)

Full Changelog: sdk-v0.63.1...sdk-v0.64.0

Features

• toolRunner: support custom headers (ac6a7a3)

Performance Improvements

• faster formatting (32d6185)

Chores

• internal: fix incremental formatting in some cases (2bdf8ee)
• internal: remove deprecated compilerOptions.baseUrl from tsconfig.json (2817c45)

Sourced from @​anthropic-ai/sdk's changelog.

0.64.0 (2025-09-26)

Full Changelog: sdk-v0.63.1...sdk-v0.64.0

Features

• toolRunner: support custom headers (ac6a7a3)

Performance Improvements

• faster formatting (32d6185)

Chores

• internal: fix incremental formatting in some cases (2bdf8ee)
• internal: remove deprecated compilerOptions.baseUrl from tsconfig.json (2817c45)

• 1bb06f7 chore: release main
• d823e52 chore(internal): fix incremental formatting in some cases
• 8ee0c3a feat(toolRunner): support custom headers
• ba3eadd chore(internal): remove deprecated compilerOptions.baseUrl from tsconfig.json
• 5be54cb perf: faster formatting
• See full diff in compare view

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