I have a client on FM14.
I currently am using FM16 and for the last 6 months have had zero issue with running their FM14 Hosted file.
They are now ready to go up to FM16.
Based on my experience I told them they could update the user to 16 over the course of the week and then over the weekend they can upgrade the server.
*FYI we they are all Mac and they are install FM 16.05.
They are a two days into the client upgrade and they are reporting all sorts of very odd behavior.
Most notably are scripts that include a Get(CurrentDate). Users are getting random dates in the year of 2022 instead of 7/10/18. I did check system date. And it does not happen every time just sporadically which make trouble shooting difficult.
I am sure most of you will call me a fool for even suggesting this upgrade path.
Anyway, any comments would be greatly appreciated.