pypi anthropic 0.77.0
v0.77.0

10 hours ago

0.77.0 (2026-01-29)

Full Changelog: v0.76.0...v0.77.0

Features

  • api: add support for Structured Outputs in the Messages API (ad56677)
  • api: migrate sending message format in output_config rather than output_format (af405e4)
  • client: add custom JSON encoder for extended type support (7780e90)
  • use output_config for structured outputs (82d669d)

Bug Fixes

  • client: run formatter (2e4ff86)
  • remove class causing breaking change (#1333) (81ee953)
  • structured outputs: avoid including beta header if output_format is missing (#1121) (062077e)

Chores

  • ci: upgrade actions/github-script (34df616)
  • internal: update actions/checkout version (ea50de9)

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