I currently use FM14.0.6 with file extentions .fmp12 in El Capitan 10.11.4. I have no issues.
I've just bought a new MacBook Pro touch bar and it's running Sierra.
Is it dangerous/will it corrupt my database to use FM14.0.6 with Sierra? It seems that FM15 still has issues with Sierra so would it be so dangerous to my database to just use my FM14?