I am using a Joomla! 3.10.8 Stack from Turnkey Linux, it shows a warning, that I have to upgrade to a higher PHP-version. So how I update/upgrade the higher PHP-version? And is it clever to upgrade to PHP 8 already?
TYVM for answers!
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I believe you need to make sure all your extensions and components are upgraded to php8, then you can change it in your cpanel under MultiPHP Manager. I was able to simply switch it over. I get an error but clearing the browser cache sorts this. You also need to ensure your server has PHP8 installed along with the necessary extensions, I am on a dedicated server so I am able to do this myself. If not, get your hosting provider to do it.
I had a bit of trial and error to start with but got there (and it is well worth it).