What’s New

browser-use 0.13.4

0.13.4
Added
  • MCP server for CLI 3.0 with shared MCP runner and max_dim guard
  • Detect LLM output truncation instead of failing with misleading parse errors, with fallback LLM switching on truncation
Changed
  • Pin Browser Harness to 0.1.5 for Windows reliability fixes and cloud-browser suggestion
  • CLI polish including shim for legacy CLI commands, hints for unknown commands, and faster startup
  • Restructure README quickstart around the CLI and Python library paths
Fixed
  • Navigation readiness detection with per-target lifecycle event storage and handling of same-document navigations without timeout burning
  • Markdown extraction no longer destroys URLs and drops long link lines
  • Keep plain BrowserErrors recoverable and preserve structured error memory through execute_action
  • Visibility check no longer mutates shared snapshot bounds
What's Changed
  • MCP server for CLI 3.0: shared MCP runner, max_dim guard.
  • Fix navigation readiness detection: per-target lifecycle event storage, and handle same-document navigations without burning the readiness timeout.
  • Fix markdown extraction destroying URLs and dropping long link lines.
  • Detect LLM output truncation instead of failing with misleading parse errors, and let truncation errors switch to the fallback LLM.
  • Keep plain BrowserErrors recoverable and preserve structured error memory through execute_action.
  • Fix visibility check mutating shared snapshot bounds.
  • Pin Browser Harness to 0.1.5 (Windows reliability fixes, cloud-browser suggestion).
  • CLI polish: shim for legacy CLI commands, hints for unknown commands, faster startup.
  • Restructure README quickstart around the CLI and Python library paths.

Full Changelog: https://github.com/browser-use/browser-use/compare/0.13.3...0.13.4

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