Browser Use changelog: what's new each month
Every stable Browser Use release summarised by month: the highlights, new features, improvements, fixes and anything you need to act on. 3 months covered; the current month updates daily.
October 2026 · so far
1 release: 0.13.11
October brought refinements to image handling, data redaction, and compatibility across multiple LLM providers. The month focused on fixing edge cases and improving support for various file formats and API integrations.
Highlights
- File writing now supports creating small binary images (PNG, GIF, JPG, WebP) directly for upload flows.
- Sensitive data in saved history is now redacted even when nested in lists.
- Fixed system message handling in Gemini requests and updated Mistral model aliases.
New
- Write tiny binary images in PNG, GIF, JPG, and WebP formats during file operations.
Improved
- Data URL schemes and media types are now handled case-insensitively.
- Bedrock image URLs now support query strings.
- Hidden code style detection is now case-insensitive.
- Mistral pixtral-large model alias remapped to current naming.
Fixed
- Sensitive data redaction in saved history now works for nested data below list boundaries.
- System messages no longer dropped in Gemini requests.
- Data URL and media type case sensitivity issues.
September 2026
2 releases: 0.13.9 → 0.13.10
September brought dependency updates, model defaults adjustments, and improvements to error reporting. The month focused on stability and compatibility with the latest tool frameworks.
Highlights
- Browser Harness upgraded to 0.1.13 with improved compatibility.
- Migrated to MCP Python SDK 2.1.1 for better model context protocol support.
- All runtime dependencies are now exactly pinned for reproducible builds.
- Unknown MCP tool calls now properly reported as application errors instead of success.
New
- Pydantic-settings 2.15.0 added as explicit runtime dependency.
Improved
- DeepSeek default model updated to deepseek-v4-flash.
- ChatBrowserUse bu-2-0 restored as default, with mini available as opt-in.
- PDF generation now properly escapes plain text content.
- File replace operations report missing target text in error messages.
- Dependency versions bumped for security and compatibility.
Fixed
- Resolved three pypdf Dependabot security advisories by upgrading to version 6.16.2.
- Fixed missing target text reporting in filesystem replace operations.
- Corrected plain text escaping in generated PDFs.
August 2026
1 release: 0.13.8
August brought reliability improvements and model updates to Browser Use, with fixes for edge cases in agent execution and DOM handling.
Highlights
- Cerebras model IDs and defaults updated
- Fixed agent crashes when handling empty action lists or zero division scenarios
- Improved DOM chunk handling for content with trailing newlines
- Better recovery of Anthropic tool arguments when models serialize calls as text
Improved
- Agent now properly recovers Anthropic tool arguments when the model returns them as text
- Temporary user data directory creation now returns Path objects consistently
- Agent file writes now use UTF-8 encoding
Fixed
- Agent no longer crashes when lastaction() is called with an empty action list
- Budget warning injection no longer causes ZeroDivisionError
- DOM final chunk character end position now clamped correctly for content with trailing newlines
Summaries are written automatically from the official release notes (full changelog ↗); check the original notes before relying on a detail. Browser Use: pricing, features and alternatives · All changelogs