It really annoys me when i hear of ppl not updating. It has been 13 years since windows xp came out. The fact that windows xp was out of support isnt new news. We had windows Vista then windows 7 then windows 8. At no point you thought you need to updated? I find it hard to believe that it cost that much to update your systems. I know nothing of exchange but for christ sakes later versions of office supports older format. I just dont get this type of crap. OMG we are on windows xp and they no longer supported what were we supposed to do for the last 13 years... There were no updates or alternatives at all.
When i read this crap its a joke. I doubt its the IT problem more of a Bureaucrat problem. Windows, Linux, or OSx don't matter a bit. Same problem would happen. I only know how to use one version lets not upgrade cause i say so. Then there forced to update and it cost money. OS option doesn't matter. No reason they couldnt upgrade OS/software... they didnt want to. Now they have to suffer from skipping versions they didnt want to upgrade to. Kind of like a tax. Didnt upgrade to next version waited 10 years fine pay 3x more for that version.
Dont know how to say this linux wise. But if you waited 10 years on a distro update since it would cost a litte. would you be suprised that a 10 year update cost money? I doubt it. No a real story here. Would cost the same to migrate from a 10 year old linux to a current version.