v1.21.1May 25, 2026

Media Preview & Smarter Badges

Media Preview & Smarter Badges. This release brings Open PDFs and Videos & Audio In The Built-In Browser.

Download v1.21.1

The download page always has the newest build; installers for this version are on GitHub.

Click a PDF, video, or audio file in the file explorer and it opens directly in the browser panel — no need to switch to an external app
Supported formats — PDF, MP4, WebM, OGV for video; MP3, WAV, OGG, FLAC, AAC, M4A, OPUS for audio
Placeholder card in the editor — if you open a media file via the editor tabs, a styled card explains the file type and offers an "Open in Browser" button
Falls back to editor tab if the browser tab limit is reached

MCP tool badges now appear on the correct terminal — each badge is tied to the AI agent that triggered the tool call, not just the most recently active terminal
Tools carry a terminal identity through the MCP bridge so badges land on the right terminal even with multiple agents running simultaneously
Sub-agent detection expanded to recognize Codex inline-mode output patterns (Running <cli>, Ran <cli>) alongside the existing Claude Bash() format
Browser panel waits for webview to initialize before loading a URL — fixes blank pages when opening browser tabs rapidly

Fixed duplicate file explorer panels in Terminal Center + Chat layout — the left sidebar no longer renders a second file tree when the preset already places it in the right sidebar
Fixed editor collapse button showing in Terminal Center and Terminal Right layouts — since the editor lives inside the right sidebar in those layouts, the toggle button is now hidden
Fixed right sidebar close button and shortcut closing the editor in Terminal Center layout — the close action is blocked when the editor panel lives in the right sidebar
Fixed browser not loading file:// URLs — local file paths are now recognized and no longer prefixed with http://
Fixed PDF rendering in browser — enabled the Chromium PDF plugin via plugins=yes webpreference