I didn't want to hijack another thread, so I'm being good and starting a new one here 😇 Basically in response to https://forum.osticket.com/d/98622-upgrading-to-1-15-and-i-get-this-error/9 - does this mean PHP 7.4 is on the official supported list now? https://github.com/osTicket/osTicket still lists 7.3 as the maximum and https://osticket.com/faq/ recommends 7.3, and a few threads in earlier months (granted this was before 1.15 was released) have had a response that 7.4 isn't yet supported in response to issues.
I've been holding off on upgrading the system hosting osTicket 1.15 in my organisation (Fedora 31) and it's getting a bit outdated now, but if 7.4 is on the officially supported list then this can go ahead 🤓