osTicket finally supports 8.3 and 8.4 and has been running on test server for 6 weeks now so will be migrating if serendipity 2.5 is good to go on it, looking towards 8.4 as its current stable php version, but if need be 8.3 will suffice (at least php slowly waking up and now giving 2+2yrs support on releases) - they both run on same server so obviously they both need to be workable and would like to make this move at end of this month if possible

If 2.5 code needs a minor patch or two I'm ok with that, but if its major changes I'll have to figure something out for blog moving forward.