#305 release: 3.5.1

Automated Release PR

3.5.1 (2026-01-29)

Full Changelog: v3.5.0...v3.5.1

Chores

• sync repo (033e0ba)

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Summary by cubic

Release 3.5.1 promotes the Python package to stable “stagehand” (now MIT-licensed), streamlines the Sessions API, and updates release tooling to publish wheels with the embedded server. It also adds execute-result caching and a new replay response type.

• New Features

  • Execute: support should_cache and cacheEntry in responses.
  • Added SessionReplayResponse for session replay data.
  • frame_id is now optional across act/extract/observe/navigate.
  • Added pydoll_tab_example; client supports raw/streaming request bodies.

• Migration

  • Install from PyPI as stagehand (not stagehand-alpha).
  • Use client.sessions.start(...) instead of client.sessions.create(...).
  • End now takes no body; SessionEndParams and x-sent-at are removed.
  • For act options.model, pass an object like {"model_name": "openai/gpt-5-nano"}.
  • GitHub Releases trigger PyPI publish; wheels bundle the server (no manual binary download).