Update, 11:10 p.m. ET: Apple has updated its release notes again. The company now claims that macOS 26.3 does not fix the window resizing bug. Instead, it is again listed as a known issue.
Apple released macOS 26.3 to the public today, and the update fixes two design issues introduced by the Liquid Glass revision in Tahoe: window resizing and Finder column resizing.
One thing that many Mac users noticed after updating to macOS Tahoe was that it became harder to resize windows. Resizing windows is one of the most common things people do on their Mac, so breaking such an important element of the user interface was unacceptable.
In a blog post last month, Norbert Heger detailed what exactly changed in macOS Tahoe to cause this problem. Basically, macOS Tahoe windows are hard to resize because they aren’t really rounded.
macOS Tahoe’s large rounded corners pushed most of the resizing click area outside the visible border of the window, making it nearly impossible to grip consistently.
As Heger explained in a blog post:
Since upgrading to macOS Tahoe, I’ve noticed that my attempts to resize a window often fail. In almost 40 years of using computers, this has never happened to me before. So why all of a sudden?
It turns out that my initial click in the corner of the window instinctively happens in an area where the window doesn’t respond to it. The window expects this click to occur in a 19×19 pixel area near the corner of the window. If the window had no rounded corners, 62% of this area would lie inside the window.
But because of the Tahoe’s huge corner radius, most of them—about 75%—now lie outside the window.
The good news is that Apple says macOS Tahoe 26.3 addresses this issue.
In its release notes for macOS Tahoe 26.3, Apple writes: “Window resizing areas now follow the corner radius instead of using square areas.” In theory, this means that resizing windows should now be much easier.
macOS Tahoe 26.3 also fixes a broken column display in the Finder. Last month, Jeff Johnson wrote the following on his blog:
The Finder has four display modes, represented by the four consecutive toolbar icons in the screenshot below, if you can even call this free-floating monstrosity a toolbar: Icons, List, Columns, and Gallery. My preference is to display the columns I’ve been using for as long as I can remember, going back to Mac OS X.
At the bottom of each column is a resizing widget that you can use to change the width of the columns. Or rather you can use to change the width of the columns. In macOS Tahoe, the horizontal slider covers the resize widget and prevents it from being clicked!
As you noticed MacGenerationmacOS 26.3 addresses this issue. The horizontal scroll bar is now correctly positioned below the column resizing widget.
However, in a new blog post today, Johnson notes that the issues aren’t entirely resolved:
Baby steps.
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