September 3, 2026
- Added Mermaid diagrams to chat and improved rendering for plain code fences.
- Smoothed streaming and restored long conversations more reliably.
- Added a shortcut to Settings when an agent fails to start.
September 2, 2026
- Added Claude Fable 5.1 support and restart handling when the fallback model changes.
- Added project-aware chats to the Radius CLI.
- Preserved project attachment when creating worktrees and refreshed branch state after terminal checkouts.
- Improved worktree cleanup, diff rendering, and terminal reliability.
- Refined chat composer controls, pinned split interactions, group ordering, and keyboard navigation in the Show All menu.
August 28, 2026
- Added Command-number shortcuts for switching tabs.
- Improved keyboard navigation, focus, and selection in tab search.
- Improved reliability when restoring saved sessions.
- Added built-in Radius guidance for supported agents.
- Refined queued-message recall, prompt history, terminal startup, and pinned tab drop zones.
August 27, 2026
- Added GPT-5.6 models and fast mode for Codex.
- Unified agent authentication and model discovery, including provider API key setup.
- Added previews for sent video attachments and refined attachment, quote, inline code, and link styling.
- Improved keyboard shortcut routing for find, Control-Tab, the omnibox, web apps, and popups.
August 26, 2026
- Restored consistent incognito chat colors.
August 26, 2026
- Added GitHub authentication recovery and recovery for worktrees whose remote branch is missing.
- Added support for creating worktrees from fresh remote branches and a keyboard shortcut for creating project worktrees.
- Added selected-text attachments and preserved model and effort defaults in new chats.
- Made files draggable from the downloads popover and fixed file links in chat summaries.
- Moved project diff enumeration off the main thread and kept nested untracked files visible.
- Improved first-run provider selection, grouped chat creation, worktree dialogs, and branch details in tab previews.
August 25, 2026
- Restored interactions for mentioned tabs and pasted links in chat.
- Persisted permission choices for new tabs and kept global permission defaults synchronized with Settings.
- Added a setup video and clearer adaptation prompts to the worktree Cookbook recipe.
August 23, 2026
- Refreshed the Radius logo, application icon, onboarding artwork, and disk image presentation.
August 23, 2026
- Kept the chat permission control clear of the send button in narrow layouts.
- Prevented delayed terminal focus from stealing focus from the chat composer.
August 22, 2026
- Made Claude Code and Codex inherit the user’s shell environment so agent commands can find tools such as Node.js, pnpm, and GitHub CLI.
- Added folder creation to the project picker.
- Improved copied chat responses and interactions with pasted links.
- Reorganized the Radius CLI documentation and replaced the Cookbook with composable workspace recipes.
- Hardened project setup cleanup and prevented settings watcher errors from interrupting the app.
August 21, 2026
- Restored the sidebar background context menu.
- Kept the sidebar hidden while focus mode is active.
August 21, 2026
- Improved Radius CLI reliability.
- Shared agent permission defaults across providers and kept choices stable when switching models.
- Synchronized appearance changes across native and web surfaces.
- Improved Claude recovery, Codex auto-review, authentication switching, and native clipboard handling.
August 20, 2026
- Isolated authentication state between agent providers and made interrupted sign-in flows easier to cancel and retry.
- Ensured popups open with the correct Radius tab session.
August 20, 2026
- Opened links from chat in their source group and split, and routed shell links through managed Radius tabs.
- Made browser imports more responsive and reliable.
- Kept the omnibox focused in new tabs without sending its input to page editors.
- Preserved pinned-tab favicons across restarts and added browser tab placement to the Radius CLI.
- Kept browser-agent navigation in the background.
August 19, 2026
Initial release.