# Open WebUI v0.8.9 — Release & Upgrade Intelligence
- **Product:** Open WebUI (https://openwebui.com)
- **Version:** v0.8.9
- **Released:** Mar 08, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/open-webui/updates/v0.8.9/

## Executive Summary (TL;DR)
Open WebUI v0.8.9. Source highlight: ▶️ **Open Terminal notebook cell execution.** Users can now run Jupyter Notebook code cells directly in the Open Terminal file navigator, execute entire notebooks with a single click, edit and modify cells before running, and control the kernel - bringing full interactive notebook execution to the b

## New Features
- ▶️ **Open Terminal notebook cell execution.** Users can now run Jupyter Notebook code cells directly in the Open Terminal file navigator, execute entire notebooks with a single click, edit and modify cells before running, and control the kernel - bringing full interactive notebook execution to the browser. Commit
- 🗃️ **Open Terminal SQLite browser.** Users can now browse SQLite database files directly in the Open Terminal file navigator, viewing tables and running queries without downloading them first. Commit
- 📉 **Open Terminal Mermaid diagram rendering.** Markdown files with Mermaid code blocks are now rendered as diagrams directly in the Open Terminal file navigator, making it easier to visualize flowcharts and other diagrams. Commit
- 📓 **Open Terminal Jupyter Notebook previews.** Users can now preview Jupyter Notebook files directly in the Open Terminal file navigator, making it easier to view notebook content without downloading them first. Commit
- 🔃 **Open Terminal auto-refresh.** The Open Terminal file navigator now automatically refreshes when the model writes or modifies files, keeping the view in sync without manual refresh. Commit
- 📎 **Open Terminal file copy button.** Users can now copy file contents directly to clipboard in the Open Terminal file navigator with a single click, making it easier to quickly grab file content without downloading. Commit

## Bug Fixes
- 🗄️ **Migration memory usage.** Database migration on large deployments now processes messages in batches instead of loading everything into memory, preventing out-of-memory errors during upgrades. #21542, #21539
- 🔒 **SQLCipher connection stability.** Fixed a crash that occurred when using database encryption with SQLCipher by changing the default connection pool behavior, ensuring stable operation during multi-threaded operations like user signup. #22273, #22258
- 🛑 **Stop sequence error.** Fixed a bug where setting stop sequences on a model caused the chat to fail with a split error, preventing any responses from being returned. The fix handles both string and array formats for stop tokens. #22251, Commit
- 🔐 **Microsoft OAuth refresh token fix.** Fixed a bug where Microsoft OAuth refresh token requests failed with error AADSTS90009 by adding support for the required scope parameter. Users can now stay logged in reliably with Microsoft OAuth. #22359
- 🛠️ **Parameterless tool calls.** Fixed parameterless tool calls failing during streaming by correcting the default arguments initialization, eliminating unnecessary model retries. #22189
- 🔧 **Tool call streaming fixes.** Fixed two bugs where streaming tool calls failed silently for models like GPT-5: function names were incorrectly duplicated when sent in multiple delta chunks, and arguments containing multiple JSON objects were not properly split. Tools now execute correctly instead of failing without explanation. #22177, Commit, Commit