# Open WebUI v0.12.5 — Release & Upgrade Intelligence
- **Product:** Open WebUI (https://openwebui.com)
- **Version:** v0.12.5
- **Released:** Oct 29, 2026
- **Impact Score:** 8/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/open-webui/updates/v0.12.5/

## Executive Summary (TL;DR)
Open WebUI v0.12.5 introduces an Analytics session explorer, multi-page notes, and live presence alongside major performance optimizations for large knowledge bases and chat searches. It also includes critical security fixes and resolves token counting calculation inflations.

## New Features
- Analytics session explorer for admins to review chat tokens, responses, errors, and tool calls
- Multi-page notes system supporting subpages, downloads, links, and search results by page
- Live presence in notes allowing users to track who has a note open and jump to their location
- Rename chat directly from the chat header menu
- Generated images saved to selected terminal working folders
- Built-in display_file tool for models to show chat/knowledge base files
- Immediate persistence of chat model selection changes
- Individual keyboard shortcut unassignment via Settings
- Number Valve and UserValve slider UI configuration for plugin authors
- Provider details section in model administration
- Embedding query and content prefix settings in Admin Settings > Documents
- Configurable terminal start timeout with AIOHTTP_CLIENT_TIMEOUT_TERMINAL
- Automation failure event notifications
- Administrators manage and rotate user API keys
- Hideable chat controls via Admin Settings > Interface or UI_VISIBILITY

## Improvements
- Faster knowledge base commands (ls, cat, grep) avoiding full-text loading per file
- Faster chat search avoiding full chat history loading
- Batched document embedding in blocks of 1000 chunks via RAG_EMBEDDING_BUFFER_SIZE
- Mistral OCR model configuration support in Admin Settings
- Negative relevance threshold support for raw scoring rerankers
- Animated ComfyUI image rendering in chats
- OpenTelemetry metrics skip health checks and probes
- Enhanced screen reader and keyboard accessibility throughout the UI
- Expanded and updated international translations

## Bug Fixes
- Security fixes included; immediate update strongly recommended
- Restored search dialog filters (tag, folder, pinned, shared, archived)
- Corrected Location filter categorization by content type
- Fixed inflated streamed token counts by avoiding cumulative summation on every chunk
- Fixed note editor freezing after toggling formatting settings
- Prevented loss of note recordings during dropped connections or sleep mode
- Fixed IME typing issues with Backspace for Japanese and other input methods
- Enabled sub-agents to correctly receive attached chat photos
- Preserved partial output from foreground sub-agents hitting tool call limits
- Handled unreachable MCP server tool failures gracefully without crashing the entire chat
- Prevented cut-off server restart replies from reverting to loading dots