Upgrading 3.0.3.7 to Supported PHP 8.1/8.2

I've done some searching around before asking, and it seems to be out of my knowledge/reach to figure this out.
Basically I'm hosting with IONOS , and they're scamming me an arm and a leg monthly for supporting downgraded PHP.
I like my website , I don't care to upgrade really, but as you can see from above ^^ I have little choice.

So the question is - What is the least amount of upgrading I can do to 3.0.3.7 to have Support for PHP 8.1 / 8.2
I'm looking for something that won't completely ruin my website, as looking through the forums It seems plenty of people have issues upgrading - which is a bit frightening.

Am I looking at a fresh install to get this done? Some helpful tips and links would be appreciated.
Thanks for reading and most of all Thanks for your time.

friendlyspiderman wrote: ↑

Mon Apr 22, 2024 11:28 pm

So the question is - What is the least amount of upgrading I can do to 3.0.3.7 to have Support for PHP 8.1 / 8.2
I'm looking for something that won't completely ruin my website ..

Simply use this version here (is coming 3.0.4.0): https://github.com/opencart/opencart/tree/3.0.x.x

friendlyspiderman wrote: ↑

Mon Apr 22, 2024 11:28 pm

Am I looking at a fresh install to get this done? Some helpful tips and links would be appreciated.
Thanks for reading and most of all Thanks for your time.

A fresh install and export/import would be my preferred option. Upgrade script problems are fairly common.

https://www.github.com/opencart/opencart-3 (PHP 8.3+).