Hi @prcm777, thanks for getting in touch.
I am using Wordfence on a PHP 8.3 site and have experienced no issues with WordPress, Wordfence, or my other plugins so far. It is important to note that certain versions of PHP 8 have “compatible with exceptions” or “beta support” status for WordPress 6.6.
PHP 8.3 doesn’t appear to be supported at all for WordPress versions earlier than 6.4 so make sure your site is up to date. This is a good chart to keep an eye on: https://make.projectdmc.org/core/handbook/references/php-compatibility-and-wordpress-versions/
Even though Wordfence is tested with PHP 8+ and its release candidates there may be some deprecation notices, but they won’t affect the site and we always work on providing full compatibility for a PHP version when WordPress does. Some other plugins may have compatibility issues but those will depend on which ones you’re using.
Thanks,
Peter.