November 26, 2025

🚀 LibreChat v0.8.1-rc2

LibreChat

The v0.8.1-rc2 release of LibreChat

What’s Changed

✨ Features

• 🪨 feat: Add Bedrock Prompt Caching Support by @dustinhealy in #8271
• 🤖 feat: Agent Handoffs (Routing) by @danny-avila in #10176
• 👑 feat: Distributed Leader Election with Redis for Multi-instance Coordination by @nhtruong in #10189
• 💡 feat: Improve reasoning (thinking) content display, copy-to-clipboard, and error handling by @berry-13 in #10278
• 🌉 feat: Integrate Helicone AI Gateway Provider by @juliettech13 in #10287
• ✨ feat: Artifact Management Enhancements, Version Control, and UI Refinements by @danny-avila in #10318
• 🔐 feat: Prioritize Provider ID Over Email for Social Login by @danny-avila in #10358
• 🌐 chore: Update tool type from web_search_preview to web_search for OpenAI by @danny-avila in #10379
• 🖼️ feat: File Size and MIME Type Filtering at Agent level by @danny-avila in #10446
• 📜 feat: Configurable Debug Message Length for Logs by @danny-avila in #10447
• 🔍 feat: Anthropic/Google Web Search Support via addParams / dropParams by @danny-avila in #10456
• 🛝 feat: Default Params via Custom Params by @danny-avila in #10457
• 🔒 feat: Idempotency check for OAuth Flow Completion by @danny-avila in #10468
• 🤝 feat: View Artifacts in Shared Conversations by @berry-13 in #10477
• 🛡️ feat: Add Model Refusal Error Handling (Anthropic) by @danny-avila in #10478
• 🔍 feat: DEBUG_MESSAGE_LENGTH Environment Variable (pt. 2) by @danny-avila in #10479
• 🤖 feat: GPT-5.1 by @danny-avila in #10491
• 🪣 feat: Init Containers and Custom ConfigMaps Support in Helm Chart by @adaptivegarage in #10525
• 👤 feat: Agent Avatar Removal and Decouple upload/reset from Agent Updates by @berry-13 in #10527
• 📨 feat: Pass Custom Headers to Model Discovery (v1/models) by @Anthony-Jhoiro in #10564
• 🚩 feat: Add --provider flag to create-user script by @ineiti in #10572
• 🔒 feat: Enhance Actions SSRF Protection with Comprehensive IP and Domain Validation by @danny-avila in #10583
• 🤖 feat: Gemini 3 Support by @danny-avila in #10584
• ☕ feat: Prevent Screen Sleep During Response Generation by @michnovka in #10597
• 🤖 feat: Claude Opus 4.5 Token Rates and Window Limits by @danny-avila in #10653

🐛 Fixes

• 🔧 fix: Remove Bedrock Config Transform introduced in #9931 by @danny-avila in #10628
• 🧭 fix: Add Base Path Support for Login/Register and Image Paths by @catmeme in #10116
• 🏷️ fix: Add user ID to MCP tools cache keys by @ruggishop in #10201
• 📎 fix: Document Uploads for Custom Endpoints by @maxesse in #10336
• 🎙️ fix: Azure OpenAI Speech-to-Text 400 Bad Request Error by @ConstantTime in #10355
• 🪞 fix: Prevent Revoked Blob URLs in Uploaded Images (FileRow) by @danny-avila in #10361
• 🗑️ fix: Delete All Shared Link Deletion on Clear Chats by @danny-avila in #10396
• 📂 refactor: Cleanup File Filtering Logic, Improve Validation by @danny-avila in #10414
• 📞 fix: Model End Callback and Streamline Client Cleanup by @danny-avila in #10438
• 🔐 fix: persist new MCP oauth tokens properly by @wipash in #10439
• 🧰 fix: Unprocessed Tool Calls Edge Case by @danny-avila in #10440
• 🔢 fix: Unescape LaTeX Numbers in Artifact Content Edit by @danny-avila in #10476
• 🔧 fix: Await MCP Instructions and Filter Malformed Tool Calls by @danny-avila in #10485
• 🔤 fix: Replace Translation Keys with Localized Text by @mdutkin in #10486
• 🎨 fix: Correct Read-Only State Logic in Code Editor by @berry-13 in #10508
• 📼 fix: Remove Legacy File Upload for Non-agents by @danny-avila in #10517
• 🐛 fix: Redis Cluster Bug + 🧪 Enhance Test Coverage by @nhtruong in #10518
• 🗑️ fix: Remove All User Metadata on Deletion by @WhammyLeaf in #10534
• 🚪 fix: ArtifactsPanel and SidePanel Rendering and Collapsing Behavior by @danny-avila in #10537
• ➿ fix: createFileSearchTool to return tuples for error messages by @danny-avila in #10547
• ⏳ fix: Async Model End Events, Await Tool Call and Dispatch Handling by @danny-avila in #10552
• 🔧 fix: Catch Errors in ToolEndHandler and Pass Logger by @danny-avila in #10565
• 🐛 fix: Error Handling in MCP Tool List Controller by @danny-avila in #10570
• 🛡️ chore: Enhance Agents Error Handling via @librechat/[email protected] by @danny-avila in #10577
• 📢 fix: Resolved Screen Reader Issues with TooltipAnchor by @dlew in #10580
• 📷 fix: Use ‘media’ type for Google multimodal attachments by @dustinhealy in #10586
• 🔒 fix: Disable Redis leader-only mode for shared app and user servers by @nhtruong in #10605
• 🕸️ fix: Minor Type Issues & Anthropic Web Search by @danny-avila in #10618
• 🛰️ fix: MCP SSE & Ping Error Handling by @peeeteeer in #10635
• 🔗 fix: Resolve Bedrock Tool Call Streaming “Content Type Mismatch” by @danny-avila in #10647

📦 Dependencies & Chores

• 📦 chore: Remove @langchain/community & Related Legacy Code by @danny-avila in #10375
• 📦 chore: Bump @modelcontextprotocol/sdk to v1.21.0 by @danny-avila in #10469
• 📦 chore: Jest & Eslint Package Updates by @danny-avila in #10536
• 📦 chore: Update Packages for Security & Remove Unnecessary by @danny-avila in #10620

🔧 Refactoring

• 🔄 refactor: MCP Registry System with Distributed Caching by @nhtruong in #10191
• 🧠 refactor: Improve Reasoning Component Structure and UX by @danny-avila in #10320
• ⚗️ refactor: Provider File Validation with Configurable Size Limits by @danny-avila in #10405
• 🤖 refactor: Improve Agent Handoff Context Tracking by @danny-avila in #10553
• 🔧 refactor: Update Avatar component to improve file selection handling by @usnavy13 in #10555
• 🔬 refactor: Prevent Automatic MCP Server UI Deselection by @danny-avila in #10588
• 📑 refactor: Skip H1 Rendering for Falsy Header Values in AuthLayout by @NalinNair in #10606
• 🪂 refactor: MCP Server Init Fallback by @danny-avila in #10608

🌍 Internationalization

🌍 Updated translations in #10323, #10370, #10380, #10397, #10448, #10458, #10481, #10519, #10622

📚 Documentation

• 🌅 docs: Add OpenAI Image Gen Env Vars by @Educg550 in #10335

New Contributors

• @juliettech13 made their first contribution in #10287
• @mdutkin made their first contribution in #10486
• @adaptivegarage made their first contribution in #10525
• @Anthony-Jhoiro made their first contribution in #10564
• @dlew made their first contribution in #10580
• @NalinNair made their first contribution in #10606
• @michnovka made their first contribution in #10597
• @catmeme made their first contribution in #10116

Full Changelog: https://github.com/danny-avila/LibreChat/compare/v0.8.1-rc1…v0.8.1-rc2