Major release featuring a new foundation for Stagehand with improved speed and flexibility. Includes 20-40% speed increase across act, extract, and observe calls; compatibility with Playwright, Puppeteer, and Patchright; automatic action caching; non-AI primitives (page, locator, frameLocator, deepLocator); bun compatibility; simplified extract schemas; CSS selector support; targeted extract and observe across iframes and shadow roots; and more intuitive type names.
Fetched April 11, 2026