Unless your organization, after wasting a year and tens of thousands of dollars on 5.0, has implemented a SOP to never use the x.0 of FreeBSD.
I think that's a decent heuristic in general - for instance, I don't buy a car until they've been rolling off the line for 9-12 months - but in the case of FreeBSD it is a concrete rule based on experience - not a superstition.
So again, the cool kids all stopped working on 10.x[1] over a year ago, and 11.1 was not released.
In our case, 10.x was working fine for us and nothing was terribly broken driver-wise (unlike 8.x when we desperately needed intel NIC fixes circa 8.2 that all went to 9 and never got backported).[2] So we kept deploying 10.3.
[1] Driver fixes all go to 11, non-critical bugs all "committed to stable", etc.
[2] Well, except for some nice new bhyve features that all went to stable were not available to us for the last 12-18 months (and will never go to 10).