0.13.4

Notifuse/notifuse0.13.4Jul 11, 2026by laithrw

AI Summary

This release introduces an updated MCP server for CLI 3.0, enhances navigation readiness detection to handle edge cases, and improves error recovery for LLM outputs and browser interactions.

Key Highlights

MCP server for CLI 3.0 with shared runner and dimension guard
Improved navigation readiness detection handling same-document navigations
LLM output truncation detection with fallback mechanism
Recoverable BrowserErrors and structured error memory
CLI performance improvements and legacy command shims

New Features

Shared MCP runner for CLI
max_dim guard
Fallback LLM for truncation errors

Full Release Notes

## 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