A new Dia update has landed, and v1.43.1 officially introduces workspace switching. Additionally, the size of the browser package on macOS has been reduced thanks to efficiency improvements.
As usual, the official Release Notes carry sparse information, merely explaining the new ability to seamlessly switch between various Profiles in Dia.

However, u/JaceThings on Reddit has posted a more elaborate changelog which details bug fixes and saved storage space. You can view a screenshot of the changes below.

After opening Dia, it automatically installed the v1.43.1 update, and if you haven’t yet downloaded it, you can do so from the “Check for Updates” section.

As mentioned before, Spaces (Profile switching) isn’t exactly a new feature that came with this update. In fact, it went live last week, and we covered that here. After several months of waiting, the feature was in early access for a while. Eventually, it landed quietly in an update without any formal announcement from The Browser Company.
It’s unclear why they chose to share this information a week later (probably because it was a staged rollout and a majority of people only got it now), but the official Release Notes mention effortless profile switching as the headline user-facing change for this update.
Apart from spaces, the other changes mentioned are:
- macOS bundle size reduction: Thanks to some framework improvements, the size of the macOS app has been reduced by around 265MB.
- Various bug fixes: There were long-standing issues with notification clicks, PiP mode, and other “web activation events” that didn’t work properly. These bugs have been resolved.
Furthermore, a user posed a question about whether the bugs with “closing tabs” were addressed. Responding directly, an employee at The Browser Company stated that the bug where the “X” disappears hasn’t been fixed yet, but the company is actively working on it. It’s more prevalent on the developer build of macOS Golden Gate.

In other Dia news, the company is making steady progress on the Windows version. This week’s episode of Windows Wednesdays explains that the Morning Brief feature now works on Windows, and that over 2500 early testers have been let into the program. More on that here.