PHP 7.4+ update advice

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Greetings. I’ve just started experimenting with our RDS solution. In developing a portal to rotate and remotely control information displayed on RDS I am looking at using PHP for the server-side language. I’ve noticed that RDS is using PHP 7.3.  In previous RPi testing trying to match the Pi to my development version of PHP 8.0 was a disaster on the operating system side of things on my Pi Zero W so I won’t even attempt it even on the Pi 4. But, I would like to at least match my other systems so it will be easier to develop and port over to the RDS hosts.

Are there any issues with the RDS image if I replace 7.3 with 7.4?

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