Hi VictorGeorgianDragan, welcome to the forum.
The new iso is to fix the boot problem with some Dell and other bios's that were having an issue. If you didn't have an issue installing, you don't need to worry about it. I would grab the new iso in case later you want to install to that architecture, but otherwise there is no difference in Zorin.
Would it be possible to offer a Zorin Pro magnet link for a torrent download, since I cannot be bothered to wait for a download that goes 104kbps and then fails; this was the EFI problem, and now this... I wish for a refund at this point
The Zorin Group doesn't offer a torrent. Try at different times to get a better download speed. I have had no problem downloading core multiple times, getting 90MB/s speeds. That is the only advice i can give you.
There are now quite a few different mirrors to try, as well. If one is under high demand and showing slow download speeds, you can try a different mirror.
But @Arcadius is asking for Pro edition link. I do not think there are mirrors for that.
I do not think Pro edition is offered through Torrent since
only the licence purchaser can download Pro.
That aside, here's a handy link to download many Linux distros through Torrent.
https://linuxtracker.org/index.php?page=torrents&search=zorin&category=0&active=1
(I only see 16 beta offered as the latest version.)
Yes, you are right. Pro version is only available from one mirror or it maybe depends on link which you got on email.
Sorry to hear that you have issues with download. Can you try it maybe with different browser.
I am using Firefox, tried to download pro version on Linux and Windows , got really great speed. Finished download in few minutes.
Maybe try later, or during the night, when mirrors are less used
Due to the fact that I reside in the Oceania Region, no matter what browser I use, the maximum data speed is 100-300kbps for the Zorin OS Pro, Since Arch has multiple mirrors around the world, I may stick with it since that's just common sense when launching an distro, that not one part of the world is just going to use Zorin.......
This is not a completely true.
For core and other versions you have mirrors from whole world.
"Official download mirrors - Zorin OS" Official download mirrors - Zorin OS
For pro it depends. If you want, you can contact Zorin team to get pro mirror from your area.
Updates etc are from worldwide, like as Arch
I contacted support and received only one reply. I am still waiting for a response to my last reply about my computers make and model, and that was over a week ago. I do not understand how pro users can be charged for a service that does not exist, so asking for a mirror for my region, will be what.... One month.......
Hi Arcadius, we're sorry to hear about your experience.
We originally sent the email asking for your computer's make and model number 6 days ago, but have not received any reply from you since.
We host Zorin OS 16 Pro on a number of mirrors around the world, and the server automatically redirects to the closest one based on your IP address. Our nearest Zorin OS Pro mirror server is located in Singapore, which should have a direct cable link to Australia.
If you're using a VPN to download Zorin OS, the server might redirect to a mirror further away (based on the location of the VPN's server) which might result in a slower download.
You are honestly kidding right, I can provide a screenshot clearly showing I emailed you a week ago with my make and model, and no wonder it is so slow, Singapore's connection to Australia is on the western side, I come from the eastern side of Australia
@lp-usb had a good luck by starting his day early:
I understand your frustration but sometimes email could fail to reach other end. You coud ask "read receipt" if your mailer allows you to do so.
Singapore is our closest mirror to Australia as our hosting provider (DigitalOcean) doesn't have any closer data centers.
As we haven't received your email, could you please let us know your computer's make and model here? This would help us to troubleshoot the issue and find a solution for you faster.
Make- Asus
Model - G15DH-AU003T
How can I download the ISO if its so slow.....
Thank you for the information. We've recently sent you an email with an alternate download link for your copy of Zorin OS 16 Pro, which should hopefully work faster for you.
Fyi, the pro link i received also started off at 400 - 700kb/s but did go up half way through to 4mb/s...i had the time though so it finished after an hour and a half. I installed without issue and am currently using pro and loving it. Now i have installed and ran every available version of 16 there has been since alpha. All without issue! 
Thank You, it worked perfectly and got zorin up and running without any errors 
With the alternate link I got, I was getting up to 7MB constant 
Glad to hear that the issue has been resolved. We hope you'll enjoy using Zorin OS!