I'm hoping that someone can help me out by directing me to a TechNet thread which I seem to have failed to bookmark.
The topic being discussed was potential issues regarding doing development in v.13 on a file which will ultimately be accessed v v.12 users.
I seem to recall that some some folks had encounted some problems with this, enough to discourage such a practice.
I was hoping to re-read the thread to refresh myself on the details, but I can not seem to find it.
Any help is much appreciated.
I did see this post https://fmdev.filemaker.com/message/137458
but I seem to recall that there was another one with a bit more discussion about this.