dia Release Notes

Dia 1.51.0 brings queued and steerable chat, Loom tools, and a round of tab and performance improvements.

Option for Calmer Automatic Tab Group Icons

Adds an option to turn off emoji for automatic Tab Groups, replacing them with simpler icons.

Shipped by Connor

Simpler Tab Switching

The tab switcher now has 5 tabs, instead of 10, making it clearer and easier to move between tabs with CTRL + Tab.

Shipped by Connor

Additional Keyboard Shortcuts for Developer Tools

Adds shortcuts for opening the JS Console and Inspect Element, and fixes an issue with closed Dev Tools windows sometimes still consuming background resources.

Shipped by Patrick

Simplified Recent Tabs Switcher

Updates the recent tabs switcher to match Arc’s layout for a more familiar experience for Arc migrants.

Shipped by Connor

Pinned Tabs Included in Tab Search

Pinned Tabs now appear in Tab Search results, making it easier to find and switch to any tab.

Shipped by Connor

Improved Profile Swiping Performance

Improves swipe-to-switch-profile animations to eliminate lag when releasing the gesture.

Shipped by Connor

Queue and Steering Controls

Queue multiple chat messages and steer Dia mid-response without cancelling in-flight tool calls.

Shipped by Nick

Type into Command Bar While Dictating

Lets users type in the command bar while actively dictating.

Shipped by Samir

Loom Automatic Tools

Dia can automatically search Loom videos, read transcripts, and surface recent activity including videos watched, created, and their reactions and comments.

Shipped by Ali

Support HEIC image files in Chat

Chat now accepts Apple .heic images, so users can paste phone photos directly.

Shipped by Connor

Faster and fuller Notion page reading

Uses the Notion API for faster, more complete page scrapes (including collapsed sections) and respects enterprise restrictions.

Shipped by Ali

Smoother window resizing

Resize even the heaviest pages without a hitch.

Shipped by Sébastien

Fix Enterprise Slack Domain Links

Fixes broken Slack domain links in Chat and Morning Brief for enterprise users by correctly including enterprise hosts in URLs.

Shipped by Rosey

Chromium M155 Upgrade

Upgrades the browser engine to Chromium M155.

Shipped by Fabrice

Dia 1.50.0

Dia 1.50.0 bring a Figma integration and more powerful search across your Dia history and past chats.

Figma tools now available

Dia now connects to Figma tools so knowing which frame was final is just an ask away.

Shipped by Rosey

Search previous chats

Dia can search and read past chat sessions by date window, chat titles, or keywords from old chats.

Shipped by Rosey

Search browsing history

Dia can recall sites from browsing history by date, page title, or URL/domain.

Shipped by Rosey

Search and read artifacts

Dia can find and read previously generated artifacts on demand, expanding the context available in chat.

Shipped by Rosey

Prevent sleep during dictation

Dia keeps your computer awake while you’re actively dictating so voice input doesn’t get interrupted.

Shipped by Samir

Voice dictation improvements

Dictation continues when switching tabs, with a clear in-progress indicator.

Shipped by Adam

Stop and resume AI responses

Pause an AI response mid-stream and resume it when you’re ready.

Shipped by alexandra

Edit AI messages

Edit AI messages to refine the conversation.

Shipped by alexandra

New on-device command bar routing model

A much smaller on-device model routes between Chat and Google, improving efficiency across Mac and Windows.

Shipped by Matt

Cleanup Tabs memory leak fix

Tab cleanup now properly closes loaded pages before archiving, preventing unnecessary memory and CPU consumption.

Shipped by Sébastien

Move to Profile respects tab-location preference

“Move to Profile” now correctly respects the “Add new tabs to the top” preference.

Shipped by Connor

Collapsible PR stacks in GitHub Live Folders

PR stacks can be collapsed/expanded with state preserved across relaunches.

Shipped by Sébastien

Retiring Memory

We're phasing out Dia's memory feature and deleting existing memory data, since newer models no longer need it to understand your context. If you had memory on, no action needed, Dia works the same, just pulling context from richer on-demand tools instead.

Shipped by Rosey

Crafted with care, because you spend your day here.

You choose to spend your day in Dia, so every surface you see matters to us. That's why we’re refreshing our brand, so that Dia feels warmer, brighter, and made with care. Today’s update sees the rollout of our new brand design, led by BCNY’er An. An happens to be a talented painter, and when he suggested bringing oil and canvas into Dia, we didn’t hesitate to let him run.

While the updates may feel subtle, the team has lived with them for a few weeks now, and the effect is one of quiet optimism: a little art in your work day, a little sunlight on your LED screen, a little joy in the mundane. Anywhere you see fresh paint, it was done by hand, by An.

Sunglow in your dock.

The shape of our logo stays the same, but has a new shade of Sunglow Yellow that stands out.

painted by
An

Brushstrokes on a new tab.

For each Profile color, a custom, hand-brushed Dia icon awaits on the New Tab Page.

painted by
An

Release notes subheading

Some more updates

• Figma tools now available. Dia now connects to Figma tools so knowing which frame was final is just an ask away.
  Shipped by Rosey.

• Stop and resume AI responses. Pause an AI response mid-stream and resume it when you’re ready.
  Shipped by Alexandra

• Search previous chats. Dia can search and read past chat sessions by date window, chat titles, or keywords from old chats.
  Shipped by Rosey.

• Collapsible PR stacks in GitHub Live Folders. PR stacks can be collapsed/expanded with state preserved across relaunches.
  Shipped by Seb.

...plus a whole lot more. Sometimes the smallest improvement is the one that makes your day, so every feature, tweak, and bug fix now gets logged in our changelog. Take a look to see everything that shipped this week.

Dia 1.49.0 brings deeper context into Dia and reliability improvements across AI and browsing workflows.

Slack Image Attachment Reading

Dia can read images attached to Slack messages directly in chat, giving you the full picture from every conversation.

Shipped by Rosey

More Efficient Tab Renaming

Tab group and tab title renaming now use a more efficient model.

Shipped by Rosey

More Reliable AI Agent Sessions

Agent context handling is now separated from execution, reducing duplicated cleanup work and making the system easier to extend.

Shipped by Cory

Performance Improvements

Fixes unnecessary UI updates, redundant data scans, and hidden-element work that were slowing down Dia’s response time.

Shipped by Renato

Dia 1.48.0 expands tool connections to Microsoft Outlook, Sharepoint and Teams. It also includes improved reliability across key workflows and more capable connected-tools support.

Microsoft Tools in Chat

Dia now connects to Outlook, SharePoint, and Teams, so the tools you live in now feed your Morning Brief. Start the day knowing which emails need a reply and ask any time what's moving across your threads.

Slack Voice Note Transcripts in Chat

Dia can now read transcripts of Slack voice notes in chat, making it easier to catch up quickly without listening through audio.

Mute Site: Domain-Wide Tab Muting

Mute a whole site at once so current and future tabs from that domain stay quiet.

Faster Tab Closing

Improves tab-close responsiveness by prioritizing showing the next tab before running cleanup tasks.

Improvements to Memory Use, Catching Leaks from Renderer

Resolves issues that could cause runaway memory usage over time.

Fix Drag Tab to New Window Animation on Golden Gate

Restores the drag-to-new-window expansion animation that broke on macOS 27.

Dia 1.47.0

Dia 1.47.0 sees deeper integration with our tools and brings a few quality-of-life updates for everyday browsing.

• Outlook Live Calendar. Dia now integrates pinned Outlook and Teams URLs with Live Calendar for real-time calendar visibility.
• Request a Tool. You can request any of the top 400 SaaS apps (or submit a custom suggestion) from a new button in Preferences 1 Apps 1 Request a tool.
• Background Tabs Visible in Peeked Tab Groups. Tabs opened via +click while peeking a Tab Group are now visible instead of hidden.
• Bookmark Bar Groups in Context Menu. Tab Groups in your Bookmark Bar now appear in the Bookmarks > Bookmarks Bar app context menu.
• Chat Attachment Suggestions Show Profile Context. Attachment suggestions now indicate when Groups or Tabs belong to linked Profiles for clearer context.
• Fix PIP Activation When Switching Profiles. Switching profiles on Meet or YouTube now correctly activates Picture-in-Picture.
• N Shortcut for New Group with Selected Tabs. Create a new Tab Group from selected tabs with NN, matching Finder's "New Folder with selected file(s)" shortcut.

Dia 1.46.0 brings a refreshed release-notes experience, better reliability for key integrations, and a handful of polish improvements across daily workflows.

Release Notes Postcard

Release notes now display as a full-page postcard using the new tab page treatment, replacing the newspaper-style delivery.

Improve Slack scraping

Slack page scrapes now complete faster and more reliably, reducing intermittent failures that slowed responses and could break certain functionality.

Stack Positions in GitHub Live Folder

Pull requests in a GitHub stack now show their position and are grouped together in the GitHub Live Folder.

PIP Window "Keep on Top" Toggle

You can right-click a Picture-in-Picture window to disable "Keep Window on Top," so it behaves like a standard window.

PiP Domain Name Returns to Tab

Clicking the domain name in the Picture-in-Picture window takes you back to the tab that created it.

Upgrade Dia's Agent Systems

Upgrades to Dia's Agent systems yield better chat reliability and security.

Live Google Calendar Selection

Choose which Google Calendars appear in Dia's Live Calendar.

Dia 1.43.0 brings reliability and performance improvements, plus a faster way to context switch.

Swipeable Profiles

Swipe between Profiles for a faster, more intuitive way to switch contexts in Dia. You can also choose to share data between Profiles in Settings, so your context carries over as you move between them.

macOS Bundle Size Reduction

Substitutes the universal ArcCore framework with an arm64-only build, reducing Dia's macOS app size by ~265 MB.

Web Content Activation Fixes

Resolves long-standing bugs where notification clicks, PIP back-to-tab, and other web content activation events failed to select the correct tab or focus the right window.

Greetings from Kansas City

For those who have been waiting, they're finally here. For those who are newer to Dia, context switching just got a lot simpler.

Profiles keep your logins, your tools, your AI, your context, exactly where they belong. The missing piece was getting between them quickly. So we added a better way to context switch.

To try it: right-click on the tab bar, create a new Profile, and swipe away.

P.S. Curious how we landed here? Check out the roundtable discussion with the design minds behind the swipe.