Bright Data MCP Server - Release 2.6.0
Release Date: October 27, 2025
We're thrilled to announce the release of Bright Data MCP Server version 2.6.0! This major update brings significant improvements to browser automation, enhanced observability, and better resource management. Whether you're building AI agents for web scraping, search, or data extraction, this release makes your workflows more reliable and efficient.
Highlights
Browser Automation with ARIA References
Say goodbye to fragile CSS selectors! This release introduces a game-changing approach to browser automation using ARIA snapshots and ref-based element targeting. Your browser automation scripts are now more reliable, maintainable, and resistant to website changes.
Multi-Client Session Isolation
Working with multiple AI clients or concurrent sessions? We've implemented robust session isolation to ensure browser sessions never interfere with each other, providing clean separation and preventing cross-contamination.
🚀 What's New
Browser Automation Enhancements
ARIA Snapshot-Based Element Targeting
The Problem: Traditional CSS selectors break when websites update their layouts or class names, making browser automation fragile and maintenance-heavy.
The Solution: We've introduced a revolutionary ARIA snapshot system that provides stable, semantic element references:
scraping_browser_snapshot- New tool that captures all interactive elements with stablerefidentifiers- Ref-based tools - All interaction tools now use reliable refs instead of brittle selectors:
scraping_browser_click_ref- Click elements by refscraping_browser_type_ref- Type into inputs by refscraping_browser_scroll_to_ref- Scroll to elements by refscraping_browser_wait_for_ref- Wait for elements by ref
Network Request Tracking
New tool: scraping_browser_network_requests
Monitor all HTTP requests made by the page - perfect for:
- Debugging API calls and data fetching
- Understanding page behavior
- Tracking AJAX requests
- Analyzing third-party integrations
See every request with method, URL, status code, and response details.
ARIA Snapshot Filtering
To reduce token consumption and improve AI response times, we've added intelligent filtering that:
- Extracts only interactive elements (buttons, links, inputs, etc.)
- Compresses snapshot data by ~70% on average
- Maintains all critical information for automation
- Filters out decorative and non-interactive elements
Session Isolation & Resource Management
Multi-Session Browser Isolation
Each MCP client session now gets its own isolated browser environment:
- Session-based isolation - Browser sessions are keyed by client session ID
- Automatic cleanup - Sessions are released when clients disconnect
- No cross-contamination - Multiple clients can work independently
📊 Observability & Client Tracking
Client Identification & Logging
Know exactly which AI clients are using your tools:
- Client name detection - Automatically identifies connecting clients (Claude, GPT, etc.)
- Request tracking - All tool calls logged with client information
- Usage attribution - Understand which clients generate which requests
Logging Example:
[search_engine] executing (client=claude-desktop) {"query": "AI news"}
Error Handling Improvements
- Polling optimization - Dataset polling now stops immediately on HTTP 400 errors instead of retrying
- Better error messages - More descriptive error context for debugging
- Graceful degradation - Improved handling of browser disconnections
Fixed Values Support for Datasets
Dataset tools now support fixed parameter values:
- Reduces token count in tool definitions
- Simplifies tool usage for AI models
- Pre-configures common parameters
🔄 Breaking Changes
Tool Renaming
Some tools have been renamed. If you have hardcoded tool names, please update:
- Check tool descriptions for any name changes
- Update any automation scripts accordingly
🐛 Bug Fixes
- Dataset polling - Fixed infinite retry loop on permanent failures (HTTP 400 now stops polling immediately)
- Browser session cleanup - Fixed memory leaks from unclosed sessions
- Error propagation - Improved error context in deeply nested calls
- Connection handling - Better recovery from browser disconnections
🔮 Looking Ahead
This release lays the groundwork for exciting future enhancements:
- Advanced browser automation capabilities
- Enhanced analytics and usage insights
- More dataset integrations
- Performance optimizations
📚 Resources
- Documentation: https://docs.brightdata.com/mcp-server/overview
- GitHub Repository: https://github.com/brightdata/brightdata-mcp
- Support: Contact us at [email protected]
🐛 Report Issues
Found a bug or have a feature request? We'd love to hear from you!
- Open an issue on GitHub
- Contact support at [email protected]
- Join our community channels for discussions
Happy Automating! 🚀
The Bright Data Team
Full Changelog: v2.4.2...v2.6.0