# Open WebUI v0.9.3 — Release & Upgrade Intelligence
- **Product:** Open WebUI (https://openwebui.com)
- **Version:** v0.9.3
- **Released:** May 09, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/open-webui/updates/v0.9.3/

## Executive Summary (TL;DR)
Open WebUI v0.9.3. Source highlight: 🔇 **Voice Mode mute control.** Voice Mode now includes a dedicated mute toggle with an "M" shortcut and auto-unmute after assistant playback, so you can prevent accidental interruptions from background noise without leaving the call overlay. Commit, #23832

## New Features
- 🔇 **Voice Mode mute control.** Voice Mode now includes a dedicated mute toggle with an "M" shortcut and auto-unmute after assistant playback, so you can prevent accidental interruptions from background noise without leaving the call overlay. Commit, #23832
- 🚀 **Faster prompt list loading.** Prompt and prompt-tag pages now load much faster for non-admin users, even with large prompt libraries, because accessible prompts are filtered efficiently in a single database query. #24288, #24258
- ⚡ **Faster chat history loading.** Chat history maps now load from normalized message records when available, reducing overhead for large conversations while preserving fallback behavior for legacy chats. Commit, #23159
- 🗑️ **Delete from conversation menu.** You can now delete the current conversation directly from the chat menu with a confirmation step, so cleanup is faster without searching through the full chat list. Commit, #24329
- ⬆️ **Scroll to Top shortcut.** Long conversations now include a Scroll to Top action in the chat menu when you are away from the top, making it much faster to jump back to the beginning of a chat. Commit, #24133
- 📅 **Calendar creation flow.** Users can now create calendars from a dedicated modal and a quick-add action in the calendar sidebar, making calendar setup faster from the calendar workspace. Commit, Commit

## Bug Fixes
- 🧵 **Background code execution reliability.** Code execution no longer hangs indefinitely when you switch conversations or browser tabs during a run, and disconnected or inactive sessions now fail with a clear timeout error instead of endless processing. Commit, #24089
- 🎙️ **Voice recording MIME fallback support.** Voice recording now tries a broader set of browser-supported audio formats and resets halted audio playback cleanly, improving microphone capture reliability in browsers where recording previously failed to start. Commit, #24162
- 🧠 **Direct-connection task generation reliability.** Title, tags, follow-up, emoji, query, and related task-generation endpoints now work correctly when chats use direct-connection models instead of failing with model-not-found errors. Commit, Commit, #24092
- 🔧 **Parameterized URL tool readiness.** New chats now wait for model defaults to finish applying before auto-submit, preventing early requests that can miss configured external tools. Commit, #24176
- 🚦 **MCP cleanup response reliability.** Successful native MCP tool calls no longer get replaced by a 500 "No response returned" error during cleanup, so valid chat responses are now returned consistently. #24105
- 🧵 **Active task state recovery.** Chat input no longer stays blocked by unrelated background tasks after a response is already complete, and interrupted assistant replies are now marked done more reliably. Commit, #23264