I downloaded Zorin OS 18.1 Core 64-bit. I noticed a SHA256 for another spin Zorin OS 18.1 Core PA 64-bit. What is the "PA" spin?
Did a search and found this for you:
In the specific context of Zorin OS 18.1 releases, the PA abbreviation stands for Post-All or Point Architecture.
While that sounds overly technical, it essentially means you are looking at an ISO image that has been updated with the Hardware Enablement (HWE) stack right out of the box.
The Difference: Standard vs. PA
Think of the "PA" spin as the "Newest Hardware" edition. Here is the breakdown:
| Feature | Zorin OS 18.1 Core | Zorin OS 18.1 Core PA |
|---|---|---|
| Release Timing | The original 18.1 build. | A "Point" refresh released shortly after. |
| Kernel Version | Standard LTS Kernel (e.g., 6.8). | Newer "Rolling" Kernel (e.g., 6.11 or higher). |
| Driver Support | Great for most 2023–2024 PCs. | Optimized for 2025–2026 hardware. |
| Target User | Users on stable, slightly older hardware. | Users with brand-new GPUs, Wi-Fi 7 cards, or OLED laptops. |
Why is there a separate SHA256?
Zorin OS provides these separate hashes because the internal files (the kernel and X.org/Wayland display drivers) are different.
If you try to verify your "Standard" download using the "PA" SHA256, it will fail and show a mismatch error. This doesn't mean your download is corrupted; it just means you're checking the "Blueprint A" against "House B."
Which one should you use?
- If you already downloaded the standard 64-bit version: Try installing it first. If your Wi-Fi, touchpad, and graphics work perfectly, you are good to go.
- If you have a very new computer: (Released in the last 6–12 months), you might want to specifically grab the PAversion to ensure the installer actually recognizes your hardware.
Pro-Tip: If you've already installed the standard version and everything works, don't worry about the PA spin. Once you run the Software Updater, Zorin will eventually pull in those newer drivers and kernels anyway!
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Hi everyone,
where can I find the ISO file for Zorin OS 18.1 Core PA 64-bit to download?
Thanks in advance
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That is actually a very good Question. I saw this a while ago and asked why there is a Checksum like this but never got an Answer. And as far as I saw there are no ISO's with this PA Addition. I looked at some Mirror Servers but only saw the normal Core ISO's.
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On the subject of hash checking, I found GtkHash, which is an app designed to calculate a file's hash. It's a stand-alone app, but I found that (perhaps unrelated - maybe it's actually part of Linux/Ubuntu/Zorin) I also have a checksum calculator built into file properties. I may have installed something to create this Checksums dialogue tab, but I've just looked at a temporary installation of Kubuntu (just curious, not jumping ship... 
) and the same option is there too.
I used in the Past Collision for calculating Checksums until I learned on Linux the simple Command sha256sum [file-name] for show a Checksum. Since then, I use that.
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Update:
I found something that could be related to this. On the Zorin Launchpad Sites, I found a PPA called ''Zorin OS PA''. But this only includes a Package named privacy-academy-wallpaper
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