After updating to macOS Tahoe, my Matlab 2024b text in GUI becomes super blurry

The GUI texts in both Matlab R2023a and R2024b were sharp and clear in macOS 15.7. But after I updated my MacBook Pro 2020 M1 to macOS 26.0, the texts in both Matlab versions were blurry and I have not found a way to make them sharp. I have the reasons to keep the R2023a and R2024b so please help. Thanks.

[Dan]

Being utterly selfhish here, can you comment as to whether versions (2025a or b) look blurry or just the older ones? Are you using the new desktop in R2024b?

[John D'Errico]

(Ditto, in that I have some selfish interest here too.) I'd not be surprised if R2025b looks fine. (I was going to upgrade my Mac soon. But I have a pretty new Mac. Yours is moderately old. Well, these days, 5 or 6 years is starting to feel old. Sigh.) Anyway, the best thing to do is to talk to tech support for an answer to your question.

[Yilang]

I have downgraded to macOS 15.7 now and have not got a chance to test 2025a. I previously used matlab 2025a on macOS 15.x and the plotting is inconsistent in fontsize and window size. This is why I kept using matlab 2023a and 2024b. I notice that besides the blurry problem, the plotting window size is also behaving incorrectly for matlab 2023a and 2024b versions on macOS 26.0. This resulted in the eventual downgrading system-wide.

[Bo Li]

What version of Java do you use with MATLAB R2024b? This can be found by calling "jenv" command in MATLAB.

Java 11 is part of requirement for MATLAB R2024b on Apple Silicon Macs in case you are using Java 8:

https://www.mathworks.com/support/requirements/apple-silicon.html