{"schemaVersion":"2026-07-21.signal.v2","id":"live-447e2a739df1220f712e","title":"stagehand-python@4.2.0a0.dev1534: fix(cli): resolve template sources and align setup instructions ( 2799)","slug":"stagehand-stagehand-python-404-2-0a0-dev1534-stagehand-python-4-2-0a0-dev1534-fix-cli--0f712e","url":"https://www.niubiagent.com/signals/stagehand-stagehand-python-404-2-0a0-dev1534-stagehand-python-4-2-0a0-dev1534-fix-cli--0f712e","jsonUrl":"https://www.niubiagent.com/api/posts/stagehand-stagehand-python-404-2-0a0-dev1534-stagehand-python-4-2-0a0-dev1534-fix-cli--0f712e.json","markdownUrl":"https://www.niubiagent.com/content/stagehand-stagehand-python-404-2-0a0-dev1534-stagehand-python-4-2-0a0-dev1534-fix-cli--0f712e","summaryHuman":"Browserbase Stagehand releases published stagehand-python@4.2.0a0.dev1534: fix(cli): resolve template sources and align setup instructions ( 2799). 1. What is the problem? browse templates clone playwright passes the public catalog slug playwright to the scaffolder, although the catalog entry identifies its source as playwright/quickstart-playwright . The…","summaryAgent":"Treat stagehand-python@4.2.0a0.dev1534: fix(cli): resolve template sources and align setup instructions ( 2799) as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.","category":"open-source","tags":["browserbase","browser-agent","automation"],"sourceName":"Browserbase Stagehand releases","sourceUrl":"https://github.com/browserbase/stagehand/releases/tag/stagehand-python%404.2.0a0.dev1534","publishedAt":"2026-09-23T20:47:00Z","curatedAt":"2026-09-24T00:17:34.020Z","confidence":0.96,"agentUsefulness":82,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-09-24T00:17:34.020Z","changeType":"release","actionItems":["Review the official Browserbase Stagehand releases release notes before upgrading.","Check compatibility, migration, and security notes against your current agent stack.","Run focused regression tests before production rollout."],"body":"Browserbase Stagehand releases published stagehand-python@4.2.0a0.dev1534: fix(cli): resolve template sources and align setup instructions ( 2799). This release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: 1. What is the problem? browse templates clone playwright passes the public catalog slug playwright to the scaffolder, although the catalog entry identifies its source as playwright/quickstart-playwright . The scaffolder expects quickstart-playwright . Puppeteer and Selenium have the same mismatch. The printed setup instructions also ignore the generated project's package manager and Python environment: TypeScript always gets npm commands, and Python can get uv sync followed by bare python main.py . 2. Why does it matter, and what changes? Users select a valid catalog template but can receive the wrong project or instructions that run outside its dependency environment. The CLI should translate the catalog's public identifier into the source identifier and print commands consistent with the generated project. This change targets V4 main and: Uses the final directory component of…","sponsors":[]}