Actually, Zorin 15.3 still has support for 32bit on the Lite Variations of Zorin OS (Education Lite and Zorin OS Lite and Zorin Ultimate Lite). Support for 32bit ended with Zorin OS 16.
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You read my comment wrong 
I said upgrade from not upgrade to.
Just to add, MXLinux and BodhiLinux still support 32 bit CPU in their latest version.
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I did, sorry.
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Hi! 
I sincerely appreciate the advice you all have given me.
I installed the Core version a few days ago, I'll choose to do a clean install for Lite 15.3, I prefer it that way because I'm afraid to make edits and crash the system unintentionally.
I will be returning soon with feedback on this experience.
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I have old laptop 32 bit. Zorin xfce have some kind image?
You could install a 32 bit version of Zorin 15,3.
then I can installing 15.3 ultimate.
POP OS only for 64 bit.
I think you can still download 15,3 core.
[edit]
I saw it.
It is the second line. 15,3 Ultimate 32-bit
My mistake. It exist.
Is it still supported?
I don't know but can download.
7,8 and 9 ultimate was on cd plate?
Currently, only Zorin OS 15.3 is receiving updates and support until April 2023.
Zorin OS 12 and Prior are End of Life.
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Zorin 7 was on arch linux.
Zorin 9 on arch linux
Based on ubuntu but on cd plate have some arch. Don't understand.
According to this: Ubuntu 14.04:
https://www.pcworld.com/article/440498/10-reasons-to-try-zorin-os-9-the-linux-os-that-looks-like-windows.html
That's a good lookin' OS. 
I have a 9 ult on cd plate.
I have question on this websides are very cheap pc. Any run Zorin or linux?