{"schemaVersion":"2026-07-21.signal.v2","id":"live-b41d2f112cb086bc286c","title":"stagehand-python@4.2.0a0.dev1535","slug":"stagehand-stagehand-python-404-2-0a0-dev1535-stagehand-python-4-2-0a0-dev1535-bc286c","url":"https://www.niubiagent.com/signals/stagehand-stagehand-python-404-2-0a0-dev1535-stagehand-python-4-2-0a0-dev1535-bc286c","jsonUrl":"https://www.niubiagent.com/api/posts/stagehand-stagehand-python-404-2-0a0-dev1535-stagehand-python-4-2-0a0-dev1535-bc286c.json","markdownUrl":"https://www.niubiagent.com/content/stagehand-stagehand-python-404-2-0a0-dev1535-stagehand-python-4-2-0a0-dev1535-bc286c","summaryHuman":"Stagehand Python release 4.2.0a0.dev1535 fixes an issue when resolving deep XPaths across iframes by properly waiting for the locator world.","summaryAgent":"Browserbase Stagehand released stagehand-python@4.2.0a0.dev1535, introducing a fix that waits for the locator world during deep XPath traversal across iframes.","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.dev1535","publishedAt":"2026-09-23T21:00:38Z","curatedAt":"2026-09-24T00:17:31.219Z","confidence":0.96,"agentUsefulness":82,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-09-24T00:17:31.219Z","changeType":"release","actionItems":["Upgrade to stagehand-python@4.2.0a0.dev1535 if encountering issues with deep XPath lookups traversing iframes."],"body":"Browserbase published pre-release stagehand-python@4.2.0a0.dev1535. The release notes specify a single fix addressing cross-iframe locator handling: ensuring the locator world is waited for when a deep XPath crosses an iframe.","sponsors":[]}