Stagehand Python 4.2.0a0.dev1591 fixes waitForSelector timeout tracking

A development release of Stagehand Python fixes waitForSelector to properly account for frame resolution and locator readiness within its timeout.

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Open Source & Tooling Primary source release / significance 2

Briefing

Stagehand: A development release of Stagehand Python fixes waitForSelector to properly account for frame resolution and locator readiness within its timeout.

Why it matters

This fix addresses a subtle but impactful bug where waitForSelector could exceed its intended timeout, leading to unpredictable wait behavior in browser automation scripts. The change ensures that time spent on internal preparation and retries is deducted from the timeout, making automation more reliable and predictable for developers relying on precise timing.

Sources

Primary source · Stagehand · 2026-10-08 — browserbase/stagehand stagehand-python@4.2.0a0.dev1591: [fix]: use `progress` tracker in `waitForSelector()` (#3146)

Watch next

Will this fix be backported to stable releases of Stagehand Python?

Topics: Stagehand, browserbase, browser-automation, timeout-fix, stagehand, python