# Open WebUI v0.12.3 — Release & Upgrade Intelligence
- **Product:** Open WebUI (https://openwebui.com)
- **Version:** v0.12.3
- **Released:** Oct 16, 2026
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/open-webui/updates/v0.12.3/

## Executive Summary (TL;DR)
Open WebUI v0.12.3. Source highlight: 🔐 **End-to-end encrypted chats.** Direct messages and private group channels can now hold a temporary end-to-end encrypted chat: a member picks Encrypted Chat in the channel menu, the other members see "Encrypted chat in progress" with a Join link, messages of up to 16 KiB are encrypted in the brows

## Breaking Changes & Deprecations
- - 🔑 **OAuth token refresh with client_secret_basic.** When "OAUTH_TOKEN_ENDPOINT_AUTH_METHOD" is client_secret_basic, token refresh now sends the client credentials in the Basic header like sign-in does, where providers that accept only Basic rejected the refresh and Open WebUI deleted the user's OAuth tokens, breaking model connections and tool servers that use them until the next sign-in. [#32507](https://github.com/open-webui/open-webui/pull/32507), [Commit](https://github.com/open-webui/open-webui/commit/ae6793dd4f209455387bcc418a5c775eec0b16c3), [#32506](https://github.com/open-webui/open

## New Features
- 🔐 **End-to-end encrypted chats.** Direct messages and private group channels can now hold a temporary end-to-end encrypted chat: a member picks Encrypted Chat in the channel menu, the other members see "Encrypted chat in progress" with a Join link, messages of up to 16 KiB are encrypted in the browser with MLS and only passed through the server without being saved, participants can verify each other by comparing codes and see when others are typing, and the chat is cleared when you leave or relo
- 📡 **Much lighter streaming with Redis.** With Redis, a streaming reply is now stored under its own key and new text is appended to it instead of rewriting the whole reply into a shared hash on every update, and replies started on older instances are still read during an upgrade; with room channels on, each instance now only subscribes to the rooms of people connected to it, so Redis no longer sends it live updates for chats it does not serve. Commit Commit #32478
- 🔍 **Compare view options and undo.** The Compare revision view has a Comparison options menu to ignore whitespace, ignore emphasis markers or only show changes with the unchanged lines folded away, an Undo button that steps back through your edits in both panes in order, and changed lines that are now lined up by their matching text. Commit, Commit, Commit, Commit
- 📝 **Richer Markdown file previews.** Markdown files opened in the terminal file browser now render with the same renderer as chat replies, including math, footnotes, highlighted code blocks, alerts and Mermaid diagrams, as well as HTML blocks mixed with Markdown, laid out as a compact document, and task list checkboxes in an editable file can be ticked to save the change to the file. Commit Commit Commit #32514
- 👀 **Live collaborators in shared chats.** The top bar of a chat now shows the pictures of the other people who have the same chat open at that moment, up to three and a count for the rest, with a Collaborators list that opens their profile cards. Commit, Commit, Commit
- ✏️ **Edit and regenerate in shared chats with replies.** In a chat from a shared folder that allows replies, people who may edit messages can now edit a prompt to start a new branch and regenerate any reply, not only replies to their own messages, and others viewing the chat stay on the branch they had selected. Commit, Commit

## Bug Fixes
- 🧾 **API key header requests in the audit log.** Requests authenticated with an API key in the x-api-key header, as Anthropic SDKs send it, or in a header set with "CUSTOM_API_KEY_HEADER" now appear in the audit log under the key's owner, and failed attempts with a wrong key are logged without a user, where these requests were missing from the audit log. #32443, Commit
- 📚 **Knowledge sharing kept on rename.** A collaborator with write access who edits a shared knowledge base's name or description no longer turns off sharing they could not set themselves, such as Public. #32450, Commit, #32449
- 🤝 **Prompt and tool sharing kept on save.** A collaborator with write access who saves a shared prompt or tool no longer makes it private for everyone; sharing they could not set themselves is now kept. #32493, Commit, #32492
- 📄 **PDF export of long notes and chats.** Long notes and chats now download as PDF, where Firefox failed with "Canvas exceeds max size" and Chrome saved a black PDF. #32459, Commit, #18334, #26373, #19583
- ⏩ **Continue Response with several models.** Continue Response now continues the reply it was clicked under, where in a chat with several models it could extend another model's reply. #32456, Commit, #32455
- 🏷️ **Tags of imported chats.** Imported chats now show their tags and the tags appear in tag suggestions, where tags missing from the account were not created on import. #32454, Commit, #32453